GB/T 10104-1995 General technical requirements for Class B marine magnetic compasses
Some standard content:
1CS_47.020.75
National Standard of the People's Republic of China
GB/T101041995
Marine magnetic compass of class B general specifications1995-11-2D Issued
1996-08-01 Implementation
State Administration of Technical Supervision
National Standard of the People's Republic of China
Marine magnetic compass of class B general specifications apeclficatlonsGB/T10104--1995
Generation 1-88
This standard is limited to the use of 1506132-19828 ship-grade compass - compass and position reading only 1S01031610ES-1989% made - Class B magnetic year tested and certified by craftsmen. 1. Subject and application scope
This standard specifies the technical requirements, test methods, inspection and packaging, transportation and storage of marine compasses. This standard is applicable to liquid compasses, not to fuel compasses. 2. Reference standards
H3898 Navigation compass name and terminology
G12257 General requirements and test methods for marine navigation equipment GB/T13384 General technical conditions for packaging of electromechanical products CB765 Coating technology
3. Terms and codes
The terms and codes used in this standard shall comply with the provisions of GB39. 4. Technical requirements
4.1 Environmental requirements
The marine compass should be able to work normally under the following environmental conditions: Ambient temperature is 20～+0℃
h. 4.2.1 Appearance of the machine
The wire should be in good condition, the liquid should be colorless, without edge filling and irregular precipitation, the wire should not leak, the wire basin and the wire should not be cracked and not pooled.
4.2.2 Correction of the magnet of the pointing system
The magnet of the pointing system should be made of high-quality magnetic material, and its correction force should be 15C02A/m. 4.2.3 Performance of materials
Except for the steel of the finger system, the other materials used should be non-ferrous materials. 4.2.4 Verticality of the gimbal
The angle between the inner and outer axes of the gimbal should be 90°-2°. 4.25 The movement of the basin is purchased from the National Hao Technology Supervision Office. Approved on November 20, 1995, and implemented on August 1, 1996. GH/R 10194--1995. When the gimbal ring is in a horizontal position, the axis of the ring can be rotated down by 3°. 4.2.6 Balance of the gimbal. When the gimbal ring is in a horizontal state, regardless of whether the position reading instrument is installed, the horizontal error of the gimbal is not greater than 2°. 4.2.7 The front support structure of the pointing system. When the gimbal ring is fully tested and returns to the normal position, the support structure of the pointing system shall ensure that the pointing system returns to its original position. When the inclination amplitude of the pointing system is given by 8, the inclination amplitude of the compass with gimbal and the hand-held azimuth magnetic compass with gimbal is 1L\, and the inclination amplitude of the compass without gimbal is 3U, the pointing system can still rotate freely. 4.2.9 Inertia of the pointing system about the ten axes through which the pivot axis passes is consistent. 4.2.15 The magnetic moment of the pointing system shall not be less than the value shown in Figure 1. 4.2.11 Half-period non-linear formula: 7, V2837H
T..0.C6aV18/H
The half-period of the pointing system is taken from formula (1) and formula (2). .T--Zhou Ming
H--test point magnetic flux density water half degree (hereinafter, point diameter, mmt,
4.2.12 total fixed time
is the calculation formula for the time of stability
GB/T10104-1995
T./54 80/H
T-- 0.4 d V18/H
refers to the numerical value of the system's emergency settling time, which is the smaller of the two formulas (3) and (1). The formula is: T, stabilization time;
d—diameter, m
refers to the system's emergency settling time for the compass's pointing system, which is not more than (5/H). 4.2.13 The system's
longitude points are equal to or smaller than 109mm in diameter and should be divided according to an average unit of not less than 10.5. When the longitude diameter is greater than 1Umm, the divisions should be divided at an average interval of not more than 2 degrees, starting from due north, in the direction of the needle, and the interval between two consecutive numbers should not be greater than 33°. The main points are represented by the semi-circular N..F, W, and the letter N can also be represented by an appropriate ratio. There can also be intermediate points between the main points. Points are indicated. A handheld magnetic compass should be graduated at an average interval of no more than 2 meters, and the scale should be incremented at an average interval in the clockwise direction of the gauge. 4.2.14 Readable
Under normal light and ambient light, a person with normal vision should be able to read the scales, numbers and letters on the dial from 1m away. If only part of the dial can be seen, at least the scales within 15° on both sides of the bow line should be read. A handheld compass should be able to read the scales within 7.5 degrees on both sides of the baseline, including at least two consecutive numbers. 4.2.15 Baseline
4.2.15.1 Number of baselines
Each handheld compass must be equipped with a bookmark indicating the heading direction. Others may be installed in the direction of the bow or left or right. Other baselines. However, the provisions of 4.2.15.2 and 4.2.15.3 shall be met. The ship's base shall be clearly distinguished from other baselines. 4.2.15.2 The length of the bow baseline
The length of the bow baseline changes from 10° to 30° when the compass of the gimbal is tilted 30°. The longitude and latitude bearing shall be read according to the bow baseline at the operating position.
The reflection compass or long shadow compass can be used on the ship's keel. 4.2.15.3 The width of the bow line
The width of the bow baseline shall not exceed 1\ of the scale. 4.2.16 Pointing error
The pointing error shall not exceed 1.5°.
4:2.17 Friction error
The data error shall not exceed (S/H)°. || 4.2.18 Error of projected baseline
The error of the bow line should not be more than 1:1\:
The error of other baselines should not be greater than 1:b.
The error between the heading obtained from the projection image of the projected compass and the heading read from the bow baseline should not be greater than 1. 4.2.19 Eddy error
The eddy error should not be large (43/H)
4.3 Compass guard
4.3.1 Materials
Except for the calibration steel and correction iron, the compass guard and its accessories should be made of non-magnetic materials: the correct steel should be high-magnetic material, and the correction force should be greater than 112C0A/m:h.
GD/T70104·1995
E. The correction software should be a soft magnetic material with high magnetic permeability and low magnetic resistance, and its correction force should not exceed 160A/. 4.3.2 When the tilt of the support device is 40° or the support is 40°, the water difference of the fixed frame should not exceed 2°1.3.3 The full-frame axis of the rack should tilt the rack basin by 5°, and after opening, it should be able to return to the same level within 10°. 4.3.4 The longitudinal displacement of the outer rack and the material bearing should not exceed 0.5mm. 4.3.5 Precautions for dislocation The rack basin should not be dislocated under any circumstances. 4.3.6 The double guardrail should have a direction mark, which should be in the same vertical plane with the horizontal axis of the belt, and the error should not exceed 14.3.7 Self-installation (when this table is available) 43.7.1 The horizontal calibration magnet axis should be parallel to the horizontal plane or the vertical plane of the horizontal axis through the gimbal axis, and the error should not exceed 2mm. The horizontal plane should also be within 2mm from the center of the system. 4.3.7.2 The horizontal calibration magnet position guarantee error number and the horizontal calibration disc should be used to judge the use of the variable type, and the installation method and personnel should ensure that the midpoint of the cross-mail is in the required vertical plane through the horizontal auxiliary line or the longitudinal axis of the gimbal, and the error should not exceed 5mm. 4.3.7.3. The influence of the translation compensation system on the compass cabinet should not be too close to the system: the compass cabinet should be effective or simulated. The speed of the compass cabinet on any route should not be A++80/>\.
4.3.7.4 The position error of the quadrant self-error correction device should be able to eliminate the radial movement of the compass cabinet in the direction of the normal line. The error in the direction from the horizontal axis of the frame should not be more than 2
4.3.7.5 The horizontal error of the double self-error correction device should be in the symmetrical horizontal plane of the pointing system. The error should not be greater than 15r. 4.3.8 The compass should have appropriate lighting equipment. If an electric light is used, the influence of the light accessories and wires on the pointing system should not be measured. 2.4 Azimuth reading instrument (with this number) 4.4.1 The accuracy of the reading shall be greater than 5° when the reading is only for the vertical position. It can also observe the position of the long-distance mark of 10°. 4.4.2 Accuracy When the direction reading is only for the accurate position, the error of the measured position shall not exceed 1°. 5 Test method 5.1 The test case shall be tested together with the gimbal: R 5.2 Except for the existing standard, all tests shall be carried out at a temperature of 20°C. 5.2 The visual method shall be used for 4.2. =, 4-2.7, 1.2.3, 1.2.13, 1.2.14, 1.2.15. 1, 4. 2. 15. 3, 4. 2. 13. 2, 4. 3. 8.
CR/T10104—1995
High temperature test is carried out according to the method specified in GB12267, the test temperature is 6°C ± 2°C, and the temperature is kept for 6 hours. After the test, the compass should be checked within 10 minutes to find any mechanical damage, leakage and air pool phenomenon, the internal body and silt layer of the compass should not be checked, the pointing system should not be deformed and the compass should be close to the axis tip. The period and the carryover error of the compass should be checked according to 5.16 and 5.211 respectively and meet the requirements of 4.2.11 and 4.2.17.
Low temperature test is carried out according to the method specified in GB12267, the test temperature is -2°C ± 2°C and the temperature is kept for 8 hours. After the test, the compass should be checked within 10 minutes to find any mechanical damage, avoid There should be no sticking phenomenon, and the filter element inside the compass should not be condensed, discolored, or separated into sediments; the body should be free of frame-like agglomerates; the finger system should not be deformed, and the joints with the shaft tip should be tested according to 5.1 and 5.2 respectively, and meet the requirements of 4.2.11 and 4.2.17 respectively. 5.5 The collision test should be carried out according to the method specified in GB12267. After the test, the compass should meet the following requirements: The compass can work normally after power is turned on. The insulation resistance between each independent conductive part and between the conductive part and the outer shell of the compass should not be less than 10.5M. The compass should have no obvious resistance! The surface speed of the compass should meet the requirements of CB765. . 5.6 Salt ammonia
Salt identification method is selected according to the method specified in 12267. After the test is completed, check the local materials and forest materials for any unknown information and leave the control. 5.7
Bacteria test method is carried out according to the method specified in CB12267. After the test is completed, check the parts and materials. No bacteria growth can be seen on the materials. 5. Vibration (single)
Vibration is carried out according to the method specified in CB12267. The test starts with a pressure rise of 5~11.2H, 11.2-25Hx, 25~50Hz: During the test, the daily inspection dial error should not be greater than (W0/1). The daily inspection does not point to the cumulative system movement or upward movement: the test is in accordance with 4.2.11, 4.2.12, and 4.2. 16.4.2.17, 4.2.18, 1.2.19 provisions 5.9 The magnetic correction force of the pointing system
Use a new and convenient test instrument to carry out the source. The result shall meet the requirements of Article 4.2.2. 5.10 Material performance
In the inspection of Article 1.2.15, except for the influence of axle inflammation and friction: when the pointing system is more than 3% of the normal movement during the weekly movement, the zero disk contains integral materials. 5.17 Flat frame prohibits the use of steel wire in the test medium. The steel wire is relatively dynamic. The flat frame is simulated. The two-dimensional observation plane is approximately perpendicular to the test scale center. Read the new conversion degree of the test bench scale disk. The sub-straightness channel error obtained shall be derived from the requirements of Article 1.2.1. 5.12 The benefits of movement are derived!
The degree of motion of the radiator shall be measured on a test bench with adjustable cutting angle and shall meet the requirements of 4.2.3. 5.13 The balance of the salt in the multi-basin box
3 shall be measured on a directional ring when the gas is placed flat on the screen and shall meet the requirements of 4.2.6. 5.14 The direction of the system shall be determined by the requirements of 4.2.8. The system can still rotate automatically. 5.15 The magnetic moment of the system
shall be checked by the method of the radiator (Wente method) or other methods to meet the requirements of 4.2.10. 5.16 Half-time
After the stabilization compass disk is 40° away from the magnetic line and maintained at least 10% under the control of the compass, release the compass and measure the time it takes for the compass disk to deflect to the original direction after adjustment. Then measure again and take the average value, which is the rate cycle. And in accordance with the requirements of 4.2.11, use a shift meter or other instruments for measurement.
5.17 Stabilization time
Lead the compass disk to return to the magnetic line under the condition of full light, measure the time it takes for the compass disk to finally return to the original direction, make the disk rotate, measure again and take the average value, which is the fixed time. The time taken by the azimuth compass to return to the initial position within 2 hours is the average value, which is the stable time. The stable time should meet the requirements of Article 4.2.12. Use a meter or other instrument to create a stable time. 5.18 Length of the baseline. Place the compass on the test bench with an adjustable bevel angle to make the compass tilt and observe the sensing position. It should meet the requirements of Article 4.2.15.2. 5.19 Pointing error. Place the compass on the test bench and align the rotation center of the test bench with the magnetic line. Align the rotation center of the longitude disk to the rotation center of the test bench. Then use a telescope to measure the pointing error on the disk. At least four equidistant directions should be measured. The results should meet the requirements of Article 4.2.16. When measuring, the top glass should be lightly covered to eliminate the operating error. Method: If the test is carried out in the test bench, the error caused by the large material is included in the effective value of the test, 5.20 degree error
The deflection of the compass system is 5°, and the position of the compass or pointing system is 10°. The difference between the effective position and the initial position of the compass makes the pointing system rotate. Measure again and take the maximum value of the two times, which is the error. It should meet the requirements of 4.2.1. The system should be measured or accurately measured with a telescope on the test bench. 5.21 Bow baseline error
On the test bench, adjust the axis of the gimbal to the vertical plane passing through the test bench rotation center, and then read the initial position of the test self-dividing disk. Then adjust the axis tip to the test bench rotation center, and then turn the compass bracket to enter the vertical viewing plane: the angle of rotation is the bow baseline error. It should meet the requirements of 4.2.1. Measure with a celestial instrument or other instrument.
5.22 Turbulence error
Make the basin rotate at a speed of 35F/(24J ± 1U1s. After the last rotation, use a celestial instrument or other instrument to measure the error between the plate and the scale plate; after the plate is measured, the difference is the turbulence error. It should meet the requirements of 4.2.19. 5.23 Frequency inclination of the supporting device
Put the basin on an adjustable running platform at 40 degrees, and measure the distance between the near and far points on the plane or the gimbal on the false material and the horizontal base. It should meet the requirements of 3.2 5.24 The friction of the gimbal shall be measured by bubble level or other instruments, and shall meet the requirements of 4.3.3. 5-25 The vertical distance between the gimbal shaft and the bearing shall be measured by gauge, and shall meet the requirements of 4 and 3.4. 5.26 The high-level prevention shall be installed in the test work, and the points before and after the test shall be 0 degrees. The compass basin shall not be far from the mark. 5.27 The accuracy of the grade shall be measured by a vertical line aiming at the vertical mark and then using the multi-degree disk in the compass to conduct daily test measurements, and shall meet the requirements of 4.3.6. 5.28 Horizontal correction Use a clock line to find the vertical plane through the axis of the horizontal frame, and then use a ruler to measure the relevant dimensions of the disk according to the proposal. Use the corresponding function formula to calculate the angular width deviation and position error. It should meet the requirements of 4.3.7.1.4.3.7.2. 6
5.29 The influence of the water semi-compass on the test white and align it with the magnetic annual line, and then place it at a sufficiently far place Apply an external hysteresis shelter and produce a fairly uniform bearing in the pointing system so that the pointing system produces a self-deviation of "720/H". Then use a horizontal light steel correction to realign the pointing system with the magnetic measurement. Then use more than 15 meters of the same material. The standard pointing system continues to meet the requirements of 4.3.7, 3. If the error is 100% and the center of the installed wire is 100% accurate, the horizontal axis load and the main plate of the horizontal frame can be measured. The position error can be measured, which meets the requirements of 1.3.? .1 Requirements of Article 5.31 Horizontal error of quadrant self-deviation correction device Based on the vertical distance between the center surface of the pointing system and the internal gimbal axle load, use a ruler to measure the symmetric level of the self-deviation correction device at an appropriate half water surface and extend the vertical distance between the two ends of the gimbal. The horizontal error can be measured. The requirements of Article 4.3 and .5 are as follows:
5.32 Specifications of azimuth reading instrument
First use the azimuth reading instrument as the alignment line and shoot two marks on both sides of the vertical tailor. Rotate the azimuth reading instrument to measure the azimuth of the two sun marks. Their difference is the horizontal horizon and should meet the requirements of 4.4.1. Use the mark on the end of the standard or the vertical mark to measure the height range and meet the requirements of 4.4.1. 5.33 The accuracy of the azimuth reading instrument can be compared with the standard azimuth (with known error) and the measurement of a target with known azimuth. The error result should meet the requirements of 4.4.2. 6 Inspection rules 6.1 Inspection classification The inspection of the compass is divided into delivery inspection and type inspection. 6.2 Delivery rules 6.2.1 The factory inspection is carried out by the product quality control inspection department of the manufacturer. Every product is inspected. 6.2.2 Factory inspection items are shown in Table 1.
The external spot
refers to the system magnetic steel anti-circulation
material's characteristic
technical requirements
out of inspection
type inspection
under the characteristic
of the benefit
the freedom of movement
some balance
to the support structure of the system
refers to the system width
periodic system
with the basic system's short
fixed time
to the basic lack of degreewww.bzxz.net
some continuous numbers
the long
production
points to the benefit
training error
the support's normal state
GA/1 10104--:995
Horizontal frame
off-position situation
vertical "standard question
this military school's axis of death is more suitable
half-grid steel position law
horizontal correction magnetic high system tension
quadrant self-E material whether the technical level error
tactical basic requirements; test questions force method
4. 2. 15. 1 1
1. 2. 15. 2
1 4. 3. 15. 3
:, 3.7. 5
4. 3. 7. 2
4- 3. 7. 3
Out! Inspection shall be conducted according to the requirements of the limits
6.3 Type inspection
GB/T10104-1995
Continued!
Technical safety requirements
When the following conditions are met, type inspection shall be avoided. 8.
Design appraisal and product finalization:
Test method
"Out" guarantee
When the original materials, structure or process have been greatly changed, which will affect the main performance of the product: When the production is resumed after a long period of production:
d. During normal production, the product shall be inspected once a year. When the inspection results are slightly different from those of the above type inspections,
The national quality inspection department shall provide the requirements for type inspection. Type Qualification
6-3.1 Products submitted for type inspection must be randomly selected from qualified products that have passed factory inspection. The number of samples shall be selected as %, but the following shall apply:
6.3.2 Inspection items shall be as specified in Table 1
6.3.3 If any product fails to meet the requirements during the inspection: Without replacing parts, the product may be tested again after troubleshooting. If product parts are damaged, they may be replaced. In addition to retesting this item, other related test items shall be checked. If unrepairable conditions occur during the test, double sampling shall be conducted for testing. If still unqualified, the batch of products shall be deemed unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The instrument should have a durable, stagnant label on the label, which contains the manufacturer's name;
h. Product name:
Product type:
d. Product number:
t: manufacturing type,
Note, when filling the basin with wine, the type of liquid (except alcohol) should be marked with the words "sound seal" (production step can be completed by the heart), 7.2 Packaging, transportation and light storage
The product packaging should comply with the provisions of (H/\13384). The packaging pen shall not be subjected to water during transportation and storage. The instrument should be placed in a ventilated and color library without candles or gas.
As shown in the attached instructions,
This standard was proposed by China Shipbuilding Industry Corporation, and the National Marine Standardization Technical Committee will be the instrument sub-technical committee. This standard is issued by Tianjin Navigation Instrument Xin Guang. This standard mainly exceeds the single person Chen Jisheng and Station Wenfang.2 The factory inspection items are shown in Table 1. The external spot of the system refers to the performance of the system magnetic steel anti-circulation force, the performance of the material under the inspection, the performance of the type inspection, the freedom of movement of the crown, the balance of the system structure, the system width, the system duration, the system's short-term performance, the basic short-term performance, the long-term performance, the training error, the normal level of the support, GA/1 10104--:995
Horizontal frame
off-position situation
vertical "standard question
this military school's axis of death is more suitable
half-grid steel position law
horizontal correction magnetic high system tension
quadrant self-E material whether the technical level error
tactical basic requirements; test questions force method
4. 2. 15. 1 1
1. 2. 15. 2
1 4. 3. 15. 3
:, 3.7. 5
4. 3. 7. 2
4- 3. 7. 3
Out! Inspection shall be conducted according to the requirements of the limits
6.3 Type inspection
GB/T10104-1995
Continued!
Technical safety requirements
When the following conditions are met, type inspection shall be avoided. 8.
Design appraisal and product finalization:
Test method
"Out" guarantee
When the original materials, structure or process have been greatly changed, which will affect the main performance of the product: When the production is resumed after a long period of production:
d. During normal production, the product shall be inspected once a year. When the inspection results are slightly different from those of the above type inspections,
The national quality inspection department shall provide the requirements for type inspection. Type Qualification
6-3.1 Products submitted for type inspection must be randomly selected from qualified products that have passed factory inspection. The number of samples shall be selected as %, but the following shall apply:
6.3.2 Inspection items shall be as specified in Table 1
6.3.3 If any product fails to meet the requirements during the inspection: Without replacing parts, the product may be tested again after troubleshooting. If product parts are damaged, they may be replaced. In addition to retesting this item, other related test items shall be checked. If unrepairable conditions occur during the test, double sampling shall be conducted for testing. If still unqualified, the batch of products shall be deemed unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The instrument should have a durable, stagnant label on the label, which contains the manufacturer's name;
h. Product name:
Product type:
d. Product number:
t: manufacturing type,
Note, when filling the basin with wine, the type of liquid (except alcohol) should be marked with the words "sound seal" (production step can be completed by the heart), 7.2 Packaging, transportation and light storage
The product packaging should comply with the provisions of (H/\13384). The packaging pen shall not be subjected to water during transportation and storage. The instrument should be placed in a ventilated and color library without candles or gas.
As shown in the attached instructions,
This standard was proposed by China Shipbuilding Industry Corporation, and the National Marine Standardization Technical Committee will be the instrument sub-technical committee. This standard is issued by Tianjin Navigation Instrument Xin Guang. This standard mainly exceeds the single person Chen Jisheng and Station Wenfang.2 The factory inspection items are shown in Table 1. The external spot of the system refers to the performance of the system magnetic steel anti-circulation force, the performance of the material under the inspection, the performance of the type inspection, the freedom of movement of the crown, the balance of the system structure, the system width, the system duration, the system's short-term performance, the basic short-term performance, the long-term performance, the training error, the normal level of the support, GA/1 10104--:995
Horizontal frame
off-position situation
vertical "standard question
this military school's axis of death is more suitable
half-grid steel position law
horizontal correction magnetic high system tension
quadrant self-E material whether the technical level error
tactical basic requirements; test questions force method
4. 2. 15. 1 1
1. 2. 15. 2
1 4. 3. 15. 3
:, 3.7. 5
4. 3. 7. 2
4- 3. 7. 3
Out! Inspection shall be conducted according to the requirements of the limits
6.3 Type inspection
GB/T10104-1995
Continued!
Technical safety requirements
When the following conditions are met, type inspection shall be avoided. 8.
Design appraisal and product finalization:
Test method
"Out" guarantee
When the original materials, structure or process have been greatly changed, which will affect the main performance of the product: When the production is resumed after a long period of production:
d. During normal production, the product shall be inspected once a year. When the inspection results are slightly different from those of the above type inspections,
The national quality inspection department shall provide the requirements for type inspection. Type Qualification
6-3.1 Products submitted for type inspection must be randomly selected from qualified products that have passed factory inspection. The number of samples shall be selected as %, but the following shall apply:
6.3.2 Inspection items shall be as specified in Table 1
6.3.3 If any product fails to meet the requirements during the inspection: Without replacing parts, the product may be tested again after troubleshooting. If product parts are damaged, they may be replaced. In addition to retesting this item, other related test items shall be checked. If unrepairable conditions occur during the test, double sampling shall be conducted for testing. If still unqualified, the batch of products shall be deemed unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The instrument should have a durable, stagnant label on the label, which contains the manufacturer's name;
h. Product name:
Product type:
d. Product number:
t: manufacturing type,
Note, when filling the basin with wine, the type of liquid (except alcohol) should be marked with the words "sound seal" (production step can be completed by the heart), 7.2 Packaging, transportation and light storage
The product packaging should comply with the provisions of (H/\13384). The packaging pen shall not be subjected to water during transportation and storage. The instrument should be placed in a ventilated and color library without candles or gas.
As shown in the attached instructions,
This standard was proposed by China Shipbuilding Industry Corporation, and the National Marine Standardization Technical Committee will be the instrument sub-technical committee. This standard is issued by Tianjin Navigation Instrument Xin Guang. This standard mainly exceeds the single person Chen Jisheng and Station Wenfang.
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