Verification Regulation of Calibrators for Headlamp Tester of Motor Vehicle
Some standard content:
National Metrology Verification Regulation of the People's Republic of China 1.1G 967—2001
Calibrators for Headlamp Tester of Motor Vehicle Issued on 2001-11-30
Implemented on 2002-03-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine JJC 967—2001
Verification Regulation of CajibratorsforHeadlampTesterofMotorVehicleJJG This regulation was approved by the State Administration of Quality Supervision, Inspection and Quarantine on November 30, 2001, and came into force on March 1, 2002. Responsible unit: Drafting unit: National Technical Committee for Metrology Beijing Municipal Institute of Metrology National Optical Technology Committee Main drafters of this regulation: Man Zonglin Fang Yiqin JJ 9672001
(Beijing Institute of Metrology)
【-Beijing Institute of Metrology】
Application·
Maodi·
3 Overall performance requirements
3.1 Luminous intensity
3.2 Optical axis
3.3 Horizontal adjustment mechanism
4 General technical requirements
5 Measuring instrument control
5.1 Verification conditions
5.2 Verification items and verification methods
5.3 Processing of verification results:
5.4 Verification cycle
Appendix A Format of the initial verification certificate (on the back)
IJG 967—2001
Appendix B Verification of headlamp tester calibrator Original record Appendix Uncertainty distribution board
1 Model drawing
JJG 967 2001
Verification procedure for motor vehicle headlamp tester calibrator This regulation is used for the verification of motor vehicle headlamp tester and other equipment [hereinafter referred to as the shuttle shot], and the verification of the equipment is mainly used for the performance test of the main training test in the test. The scope of this regulation is 2 Overview
The calibration group is a standard light source with a rotating optical axis. It has no rotating mechanism, DC power supply and meter, optical response mechanism, water regulation engine and alignment mechanism, etc. For the calibration of bag intensity and light radiation: 3 Metrological performance requirements
3.1 Luminous intensity
3.11 The calibrator shall emit a clear and symmetrical light spot on the plane perpendicular to the light beam, and its illuminance shall have only one maximum value.
3.1.2 The variation range of the emission intensity of the calibration band in the main light direction shall not be less than 50×1~40×1.
3.1.3 The uncertainty analysis of the luminous intensity of the calibrator shall not exceed 6% (3.25-6%).
3.1.4 The repeatability of the luminous intensity of the calibrator shall not be less than 1.5%.
3.1.5 The uncertainty analysis of the luminous intensity of the calibration band shall not exceed 1.5% within 10min. 3.1. The DC regulated power supply used for calibration shall be stable. When the luminous intensity is 20×1Ycd, the corresponding indication value shall not change by more than 0.02 V for 1 min. The luminous intensity shall not change by more than 3.2.2. The indication value of the calibration light source shall not exceed 53.2.3. The rotation rate of the light source shall be 33.2.4. The following shall be known: 0.200: horizontal to the left () within the range of 2 and the left position, "the lower range shall be adjusted within the range of 2, and the burst intensity shall not be asymmetrical. tt||3.5 Level adjustment mechanism
The level adjustment machine of the calibrator can be tested: the rate of change of the new level calibrator light does not exceed 3.4 General technical requirements
4.: The calibrator has a year, marked with the name, model, manufacturing unit, number, logo, manufacturing equipment detailed certification number:
2 The optical parts of the calibrator should be clean and can reflect the city, air flow marks and other impact on the quality of the JEG 97—2001
Defects: The scale lines and numbers should be clearly displayed, without broken lines, missing pens, etc. 4.? Each moving and joint part should rotate flexibly, smoothly, lock and carry, and should not have color transmission defects. 5 Control of measuring instruments
Control of measuring instruments includes initial verification, subsequent verification and inspection during use. 5.1 Verification conditions
5.1.1 Verification equipment
5.1.1,1 Digital meter: At least 3
digits are displayed. The measurement range is .1 ~ 2n( × 10' Ix. V( a Matching error: 3%: indication error meets the requirement of rated service life (relative indication error: 4%). 5.1.1.2 Optical filter measuring device: measuring distance is not less than 7,000m, maximum error is 0.2%. 5.1.1.3 Baseline (or level, heart rate device) 5.1.1.4 Power supply: AC220±10) 5.1.1.5 AC voltage stabilizer: bottom positive stability: 0.3% 5.1.1.6 Optical negative detection device (see Figure 1) Controlled device: fast sliding optical angle detection device 967:2001
Angle range: left, right, bottom is 0, top is 0-1, extension is 2 (product=3: the minimum division of the coordinate plate is 1mm, the lifting and lowering range is 0-.360°, the pin can be fixed normally, and the lifting range should be able to meet the verification requirements: the beam of light emitted by the mountain should not exceed the deviation of 1:5.1.2 Environmental conditions
5.1.2.1 Ring hoop temperature: 20±5)
5.1.2.2 Relative humidity: ≤85%
5.2 Verification items and verification methods
Verification details are shown in Table 1. | |tt||Table 1 Verification items
Verification items
Technical requirements
Optical axis zero position error
Luminous intensity
Luminous intensity consistency
Consistency of luminous obstruction
Stability of display glass
Symmetrical distribution of calibration equipment
Identification error of optical axis
Ratio of non-uniform rotation mechanism error
Influence of new adjustment technology of mechanism on optical axis First verification
Subsequent verification
Note: The values are specifically verified and are indicated with “+”. 5.2.1 Technical requirements for use: Visual observation and test: The requirements of 4.1-4.3 shall be met: 5.2.2 Optical axis zero indication error: Inspection during use: 5.2.2.1. The calibration shall be carried out on the photometric measuring device. The calibration sample shall be placed on the rotating table of the device (see Figure 1) to be calibrated. The comparison water pool shall be placed in a negative loop. : At the same time, make sure that the center of the luminous surface of the calibrator is at the same height as the center of the light-receiving surface of the detector of the numerical illuminometer. Rotate and level the calibrator to be tested (these adjustments need to be performed alternately and repeatedly): the tip of the stop mechanism from the top to the optical axis of the calibrator to be tested and the perpendicular line through the center of the light surface of the detector are in the same plumb plane. At the same time, the center of the water ring of the calibrator to be tested is taken as the top. Determine the starting point of the calibrator to be tested. 5.2.2.2 Fix the illuminometer and the calibrator to be tested on the device at the same position (7. [KKm, the same below). The angle of light is (DO[(is the angle of the optical axis, where L is the optical axis of the first water level, and D or R is the angle of light in the second direction), keep the optical axis in the vertical direction negative 0°, and rotate the optical axis to the negative 13 (or R3\ 00°): Then slowly rotate the light angle according to L300°000°1.3000 (R3°00000°130(%)), and observe the indication of the illuminance meter: the light axis angle is L200 and R2°00° near the two positions of the illuminance meter indication, and record the indication of the light axis at this time: 3
G7—21
Horizontal square and the light auxiliary angle radiometer indication difference is calculated as: Aa. = (a-α:Then reverse the above direction and scan the two positions of R0 and R200 near the illuminometer, and record the minimum value of the axis angle. The average value of the results of these changes is the standard position indication of the self-leveling force of the illuminator: 2 -( + 2 : 12
Keep the light angle of the collimator at 00° unchanged, and turn the minimum value of the light to 1200 or 200°: then check D2-000°00-U2:00 (or 200-→(00→1)2 (K) and slowly rotate the light axis in the negative direction, and observe the illumination indication: when the light angle is 0:0, find the two minimum values of the illumination near the light angle. Record the angle value,
reversely connect the method described above, when the light angle is 1:0, judge the illumination meter indication value in front of the two tubes: at this time,
press the pressure at the mountain city to record the value:
The difference between the indications of the two vertical calibration instruments is: A = (-3.)n
2- (. -) 2
The average value of the two verification results is taken as the error rate of the calibrator: 23. -(49.+%) /2
The zero position value of the optical axis angle of the night calibrator is usually &, and the position is represented by 1 or R or U respectively. The requirements of 3.2.1 should be derived:
5.2.3 Luminous width
5.2.3.1 Set the adjusted instrument and the detector of the meter at two positions of the working distance D (Figure 2): Make the optical axis at 00000, keep the optical axis of the calibrator in the same direction (price) as the calibration instrument, and slowly move the light direction to change the effect. The number of changes in the meter, when the maximum reading is obtained, record the amount of light at an angle, continue to rotate the light in the original direction, and then continue to change the light in the direction of the whole movement. When the number of the meter reaches the maximum value, record the square of the light intensity.
Change the control format
Head from the research
12 According to the light transmission measurement diagram
J.IG:9672001
The position of the main light and the horizontal direction of the inspected building is: 2,- (n-) 2
Just keep the calibrator horizontal (000) unchanged, slowly rotate to the vertical axis angle, find out the two indications of the illuminance meter reading, the calibrator optical axis multiplied by the vertical axis is: 3 = 3, +9) 12
Record the position of the calibrator under test in the optical system as (1H, D, according to the marking in the table) 18)
5.2.3.2 Clockwise adjust the optical axis or position of the calibrator under test, connect the power supply of the calibrator circuit under test, turn on the switch, connect the instrument to the standard function, turn on the switch of the meter, and select the appropriate position. After the calibrator under test is preheated, the calibration is started. Increase the pressure of the calibrator by about 10% until the indicator of the meter shows the actual luminance E, -D, where is the first luminous change of the calibrator under test), and record the display of the calibrator under test at this time. According to this method, the luminous intensity of the calibrator will change by 50×10°l, 60×10°l, 10×10 ti, 12×1mr, 5×10'l, 20 ×d, 25×10cl, 31×10 , 010 etc. The corresponding display voltage is 1=987,
The average value of the last two displayed voltages is taken as the verification result: = ( +) 2
Calibration luminous intensity should meet the requirements of 31.5.2.1 Calibration belt light welding and manual repeater
fixed illumination meter measured by the calibrated detector, the maximum luminous intensity is 0×10 corresponding to the pressure, the luminous intensity of the continuous night vision device is less than 5, according to the Bessel formula, the standard difference of the beat point is: (-
V (, 1 × 100%
-the first measured value I, = E,D\
the average value of the luminous intensity;
measurement times
control the luminous intensity of the vehicle requirements of 314: 5.2.5 Calibration step to return this intensity qualitative
(n 5)
For the same setting height, the luminous intensity is 20×10, the tester shall be subjected to the light for 2 hours and then tested once every 2 years, and 6 times a year. The stability of the tested micro-transformer shall be calculated according to the following formula:
U[E,/E,-I ×(KS
Formula: E, is the minimum reading of the illuminometer; E is the maximum reading of the illuminometer.
I.IG 67—2001
The stability of the luminous intensity of the calibrated device shall meet the requirements of 3.1.5. 5.2.6 The stability of the calibration voltage
Adjust the display of the tested device to the corresponding value when the luminous intensity is 20×10, and observe continuously for 10 seconds. The maximum difference between the displayed voltage and the luminous intensity is taken as the calibration result. It shall meet the requirements of 3.1.6. 5.2.7 Symmetry of calibration grid light distribution
Adjust the detectors of the calibrator under test and the illuminometer according to the method in 6.2.1 and fix them at two corresponding positions on the device. Adjust the optical axis angle of the calibrator to 000000 in a counterclockwise direction and record the reading of the illuminometer at this time. Then adjust the optical axis in a counterclockwise direction to L1°00/0°00°, L2~00°/0°00°, L3°00°/0200, and then adjust the optical axis angle clockwise from "3°0X0) to L2\00000', L100/000, 000000°R1900000, 200000, 3000°00, and adjust the optical axis angle clockwise from R30000 to R2000°0°00°, R10070°00°, 0°000°00, and record the three readings of the illuminance meter when the axis angle is 00°C, E%, E%, respectively. The average value is E. When the optical axis angle is L1°00/0°00, L2°0000, R100%000, R200/000, the luminous intensity of the calibrator under test is calculated according to the following formula: f,=EE×100%
where: E. When the optical axis angle is at 000, the average value of the three readings is obtained; when the optical axis is at 0(0, the average value of the two readings is obtained: (12)
The relative luminous intensity of the calibrator under test multiplied by the vertical direction is determined by referring to the above method. The horizontal light angle of the calibrator is kept unchanged at 0, and only the vertical light axis angle is changed. The luminous intensity of the calibrator is: I.Th=(E,/EJ×100%
In the formula: When the light axis is at about 0, the average reading of the illuminance meter is (13)
, and the difference between the light distribution of
and .19% meets the requirements of 3.2.4. 5.2. Compare the indication error of the light input angle of the calibrator
Put the light axis angle calibration device on the lifting platform and adjust it to a horizontal level. Place the calibration object on it and use the tool to The middle reflector is installed near the vertex of the lens of the collimator to be inspected (Figure 3): Turn on the power of the optical system, adjust the height and angle of the lifting platform, and make the laser beam shine on the reflector: the optical angle of the collimator to be inspected is 0°, adjust the lock to make the reflected laser beam coincide with the origin on the receiving plate: keep the optical axis of the collimator in the receiving state, turn the optical axis angle knob counterclockwise, and the values of the optical axis angle in the horizontal direction are 0°000, 100, 120, 30° respectively: then turn the optical axis knob clockwise to make the optical axis angle values at 2°0000, 1.1\0k/0%0, 0000°/000", R1\000°00, R2°00/000°, R300'/0°00\; then rotate the optical axis counterclockwise, so that the optical axis indication is set at R200\0°00, R1000°00, 000000 respectively. Read the optical axis angle from the coordinate plate at the same indication. The distance between the optical center and the origin is 4, 5
J[G 967·2001
Yanbei Instrument
"Time and Reflection
According to the light inspection
reason, the optical axis of the calibrator is inspected with an average value A as the total error indication. The distance from the reflector to the origin of the coordinate plate must be measured first. The actual degree of rotation of the optical axis of the calibrator under inspection is calculated by the following formula:
arctannalLu
The indication error of the optical axis is:
Aa, = a, - au. = u.
Where: the first optical axis is the distance from the first optical axis to the origin.
atan（Ar,/L
Keep the negative indication of the optical axis under test at 0°00, rotate the optical axis angle rotation device clockwise to make the vertical indication of the calibration optical axis angle at 0°00\/\00,°00D1°00',[(K\door)2%000D300: then rotate the axis angle rotation device clockwise to restore the optical axis indication to 0°5 (0/)2°H)0-00/D1\00%, 0F00/000, 0001~00, 0°00/U2°00° position: then rotate the optical axis forward clockwise: the optical axis angle indication is at 0-00U1°00, 0:0000 position and the optical axis is restored from the coordinate system. When the center of the laser spot is at the extreme point of the indication, the reading is taken twice, with half as the value and year as the measured value. After the actual effective angle of the optical axis of the calibrator under test is measured, the following is calculated: Po,-Trcu (ata/Lo)
The indicated value of the optical axis angle is:
A - - u. -bZxz.net
Where: The indicated value of the optical angle in the first vertical direction is Hretan(A,/i)
The error of the optical angle of the calibrator is to avoid the error required by 3.2.2 of the filter standard. 5.2.9 The optical axis of the calibrator is rotated clockwise. Repeat the steps of 5.2.8.
When the technician rotates the optical axis angle clockwise, the actual rotation angle of the calibrator optical axis is: Farolan[AL
JJG 967—20h1
Counterclockwise rotation of the optical axis when the calibrator is tested, the actual rotation of the optical axis is: rlana
The error of the calibrator in the price tracking is: 30
The error of the calibrator optical angle rotation mechanism meets the requirements of 3.2.3. 5.2.10 Adjust the laser beam center and the coordinates of the calibrator to be tested: adjust the center of the laser beam and the origin of the coordinates: make the water deviate from the center, record the position of the emitted light spot in the standard plate 1: measure 3 ohms, and take the larger value as the calibration value. The adjustment characteristics of the controlled flow level adjustment machine are: anlan (A, g)
e-furcun (Ahlg)-
cloud: A after the first adjustment, the maximum distance of the center of the reflected light on the coordinate plate from the origin; after the first adjustment, the minimum distance of the center of the reflected light on the coordinate plate from the source point; -- the range of the coordinate origin to the reflection. The calibration machine shall be re-adjusted to meet the requirements of 33. 5.3. The calibration results shall be issued to the qualified calibration machine according to the established process requirements: the calibration certificate (the format is shown in the previous record A): the calibration result notification shall be issued to the unqualified calibration machine, and the unqualified items shall be noted: 5.4 Calibration cycle
calibration cycle
shall not exceed one year.
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