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GB/F 2987-1996
This standard includes the commonly used parameter symbols of various types of current electronic tubes. This standard is formed after revising the original GB2987-1996 electronic tube parameter symbols in accordance with GB/T1.1-1993 Standardization Work Guide Unit 1: Drafting and Expression Rules of Standards Part 1: Basic Regulations for Standard Writing and GB1.5-88 Standardization Work Guide Symbols, Codes and Label Writing Rules. Up to now, there is no international standard or advanced foreign standard that completely corresponds to this standard. However, in this revision, the parameter symbols and parameter names related to electronic tubes in IEC27 series standards, IEC151 series standards and ISO31 series standards (ISO31 series standards (equivalent to GB3102 series standards issued in China) were actively adopted. In this revision, in addition to adding and deleting some parameter symbols of electronic tubes, number columns and description columns were added to its table. The parameter symbols listed are all derived from national basic standards or international standards, or need to be emphasized in other aspects, which are explained in the explanation column. When there are more than two symbols or names or parameter names in the same line of this standard, the ones with parentheses () are reserved, and the ones without parentheses are considered to be equivalent.
This standard will replace GB2987-82 from the date of implementation. Appendix A of this standard is a reminder appendix.
This standard was proposed by the Ministry of Electronics Industry of the People's Republic of China. This standard was submitted by the National Technical Committee for Standardization of Vacuum Devices. The drafting unit of this standard is the Standardization Institute of the Ministry of Electronics Industry, and the main drafter of this standard is Huang Ma.
This standard was first issued on March 27, 1982 and revised for the first time in 1996. 1 Scope
National Standard of the People's Republic of China
Parameter symbols of electronic tubes
Lelier symbols of parameter for electronic tubesGR/T 2987—1996
Code nameCB298782
This standard specifies the method of using parameter symbols for electronic tubes and gives the commonly used parameter symbols for various types of tubes. This standard is used for technical documents, scientific and technological literature, cultural and educational materials and publications on electronic tubes. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard by being cited in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB1.5--88 Standardization work guidelines, symbols, codes and codes GB3101-93 General principles for quantities, units and symbols (1dtISO31-0:1992) GB3102.1-93 Quantities and units of space and time (dt1SO31-1:1992) GB3102.2-93 Quantities and units of cycles and related phenomena (idlISO31-2:1992) GB 3102.3-93 Quantities and units of mechanics (idtI30) 31-3; 1992) GR3102.4—93 Thermal quantities and units (id, ISO31-1: 1992) GB3102.5—93 Electrical and magnetic quantities and units (idt[S]31-5: 1992) (GB3102.603 Quantities and units of light and related electromagnetic radiation (lL1S()31-6: 1992) GB3102.10—93 Quantities and units of nuclear reactions and ionizing radiation (negISO31-10; 1992) GB/T4597·1996 Vocabulary of electrical equipment (ncqIEC50(531): 1974) IEC27-1 (1992) Text symbols used in electrical technology Part 1 General IEC27-2 (1 972) Text symbols used in electrical technology Part 2 Telecommunications and electronics IEC:100-69 Test method for inter-electrode capacitance of electron tubes IEC151-9 (1966) Test method for electrical properties of electron tubes Test method for inter-layer impedance of cathode shuttle IEC151-12 (1966) Test method for electrical properties of electron tubes Test method for resistance, transconductance, amplifier coefficient, frequency conversion function and frequency conversion transconductance IFC151-14 (1975) Test method for electrical properties of electron tubes Test method for radar and oscilloscope cathode ray tubes IEC151-16 (1968) Test method for electrical properties of electron tubes Test method for television picture tubes TFC151-21 (1969) Test method for electrical properties of sub-tubes Test method for cross modulation of electron tubes IFC151-21 (1969) Test method for electrical properties of sub-tubes Test method for cross modulation of electron tubes IFC151-14 (1975) Test method for electrical properties of electron tubes Test method for radar and oscilloscope cathode ray tubes IFC151-16 (1968) Test method for electrical properties of electron tubes Test method for television picture tubes IFC151-21 (1969) Test method for electrical properties of sub-tubes Test method for cross modulation of electron tubes IFC151-21 (1969) Test method for electrical properties of sub-tube ... E151--26 (1971) Test Method for Electrical Properties of Electron Tubes Test Method for Camera Components IEC235-2 (1976) Test Method for Electrical Properties of Microwave Electron Tubes - IEC462 (1974) Standard Test Method for Photomultiplier Tubes for Scintillation Counting 3 Definitions
The definitions involved in this standard shall comply with the provisions of GB/T4597, GB1.5 and relevant national standards. Approved by the State Technical Supervision Committee on November 12, 1996
Implementation on October 1, 1997
Parameter Symbol Structure or Rules
CB/T2987-1996
The measurement units and symbols of electron tube parameters shall comply with the provisions of relevant national standards. 4.1 Parameter Symbols are composed of single Each character consists of a basic symbol (body symbol) or sign: basic symbol 1 plus explanatory symbols (foot symbol, side symbol, item symbol).
The format is as follows:
Item symbol
Body symbols are represented by Latin letters and Greek letters (see Table 1): Body
Side symbols are represented by Latin letters, Greek letters, symbols, etc. (see Table 2); top symbols are represented by horizontal lines, arcs, etc. (see Table 3); foot symbols
Foot symbols are represented by Latin letters, Greek letters, Arabic numerals, horizontal lines, wavy lines, derivatives, etc. (see Table 4). The names or parameter names represented by the symbols listed in the standard are arranged in the order of the Chinese phonetic alphabet and the index of the negative code they are in is shown in Appendix A (Suggested Appendix).
4.2 The printing of parameter symbols shall be in accordance with 3.1.1 and 3.1.2 of GB3101-93. Table 1 Body Symbols
Parameters are often called
Electromotive force
Network, insulation resistance
Capacitance, inter-capacitance
EC 27-1
GR 3102.5—6.3
In AC technology, the term "current" is used to indicate the time value of the current. IFC.27.1
GB 3102. -1
GB3102.5—35
TEC 27-1
CB3102.5—33
GR 3112. 5—44. 3
GB 3102. 5—9
TFC 27-1
GB 3102. 5--45. 4
GB3102.5-45.1
CB3102.5-33
CB 3102- 5-15. 3
IEC1519
GB 3102. G—44.1
TEC:151--12
GB/T2987-1996
Table 1 (continued)
Parameter name
Permeability
Compliance rate
Absorbed dose
Absorbed dose rate
Dose equivalent
Count rate
Irradiation
Irradiation rate
Resistivity
Amplification factor
Acceleration factor
Duty ratio, duty cycle
Excess noise ratio
Temperature coefficient Number
Distortion coefficient, distortion coefficient
Voice coefficient
Modulation coefficient
Reflection coefficient
Compression coefficient
Coupling coefficient
Leakage coefficient, magnetic field coefficient
Standing wave coefficient, standing wave ratio
Conductivity
Quality factor
Deflection factor
Deflection unevenness, (deflection uniformity factor) Air coefficient, air content coefficient
Resolution capability
Resolution
Gray scale
Field strength
GB 3102. 19--50
GB 3102. 10-51
GH3102-10 52
GB3102.1053
GB 3102- 1C—57
TEC27-1
GB3162.11:58
GB 3102. 5—36
G 4597—1. 7: 25
1FC27-1
IEC235-2
IEC:27-2
IEC 27-2
GB 3112.66
TEC27-1
IEC 27-2
IEC:27-2||tt| |[EC 151-14
IEC151-16
1FC462
GB 3102. 5—[7
GB/T 2987—1996
Table 1 (continued)
Number name
Electric field strength
Phosphorus flux
Radiation energy flux
Magnetic induction Strong change. Magnetic flux density
Spiritual number
Stability
Uniformity
Time, time interval, duration
Neng's temperature| |tt||Thermodynamic temperature
Porridge pressing, true temperature
GB 3102. 5 5
IEC 27-1
CB 3112. 5 --20|| tt||IEC 27-1
GE 3102. 6-- 30
TEC271
GB 3109.6—10
IFC 27-1
GB 3i02. 519
GB 3102.6—32
G3 3102. 634
IEC 27 1||tt ||GB 3102.F 51
CB3102.325.1
IEC 27-1
(at3 3102.6—)
G[3 3102. ---3
GR 3102.2— 1
IEC 27-1
GH 3102. 1-1. 7
GB 3102.1 2
GB 3102.41
The speed of light in a vacuum is C or (
GB 3102. 1—10
The acceleration due to gravity is
GR 3102. 1-11. [|| tt||a,pygd
GB/T 2987-1996
Table 1 continued)
Parameter name
say egg, air volume
1 plane 1 angle
pain, cabinet skin, fungus
Displacement, offset
Focus size
Height·depth
Modulation depth, modulation section
Contrast
Number of primes|| tt||Emission coefficient
Parasitic emission
Graphical distortion
Power fluctuation
AM-PM conversion coefficient
Modulation coefficient||tt ||Table 2 Side symbols
Increment, change
Total, (sum)
Change density
Reflection-free
GR3102.329
GR 3162.11
GB 3102. 1 3. 1
GB 3102. 1—3. 2
GB 3102. 1-- 3. 4
GB 3J02.13. 5bzxZ.net
GB 3102.1—3. 6
G:3 31G2. 1——5
GB 3102. 3 --9. 2
IEC151-21(1969)
IEC: 151-26(171)
IEC 27-]
GB/T 2987—1996
Table 3 Top mark
Average value
Table 4 Foot mark
Photocathode
Gate, control electrode, suppression electrode| |tt||Target electrode
Accelerating electrode
Reflecting electrode
Collecting electrode
Shielding electrode
Push-in electrode
Focusing electrode| |tt||Active pole
Box lensVertical linear pole
Pot lens Geometric correction pole
Disc lens horizontal curvature adjustment pole
Box lens horizontal sensitivity adjustment pole
Pitch penetrating output pole
Box lens input alarm
Microchannel plate input
Microchannel plate output
Astigmatism
Astigmatism calibration
All electrodes||tt| |Ignition, ignition electrode
Guidance level
IEC27-2
IEC 27-1
IEC 27-1
TEC: 27-1
Phototube
IEC 27-1
IEC27-1
TEC130
Gas discharge tube
Microchannel plate oscilloscope
GB/T2987-1996||tt| |Table 4 (continued)
Modulation
Deflection, deflection pole
Signal pole
Huisang·Huile pole
Spiral line||tt || Resonance cavity
Yinguang screen
Inner conductor, inner conductive layer
Outer conductor, outer conductive layer
Transformer
Hydrogen storage device||tt ||Jin small lens
Line diagram, line package, tilting coil
Vertical correction coil
Trace rotation line retention
Electron beam, electron injection|| tt||Hanru Incentive
TEC 27-1
IEC100
Microchannel plate oscilloscope
Microchannel plate oscilloscope
1FC:27-1
[EC 27- 1
GB/T 2987-1996
Table 4 (continued)
Emission, radiation
Occurrence, vibration
Ignition, start| |tt||Thank you·electric
Zhang Guang, the arc
delayed·delayed
extinguished-extinguished
fire will be
IEC 27-1
IEC272
IEC 27-1
TEC 27-1
IEC 27-1
4- 128
GB/T 2987-1996
Table 4 (continued)
Nonlinear
Consumer electricity
Internal
outside
central area
fringe area
TFC 27-1
1EC 27-1
IFC 27-1
IEC 27-1
HEC 27-1
IFC 2? -1
GB/T2987-1996
Table 4 (continued)
Color (color)
Dark (dark field)
Door field, ( bright field)
residual, fixed residual
reference point, reference line
discontinuity point
·system
second system
diode Part
Triode Part
Pentode Part
Septode Part
Double-tube Part
IEC 27-1
IEC 27-1
Li Sheng Tube
Composite Tube
CB/T 29871996
4.2 The body marks specified in this standard can be used as foot marks. 4.3 When the electrode symbol and other symbols are used as foot marks at the same time, the electrode symbol should be placed in the first position of the foot mark. For example: anode pulse voltage (p
when two or more electrode symbols are used as foot marks When marking, the arrangement should be in accordance with the electrode order in the parameter name. For example: Filament-cathode voltage
4.4 The number of letters added to the footnote should generally not exceed three, and the footnote should be in a smaller font than the body mark. , its base line is slightly lower than the base line of the body symbol,
4.5 If necessary, it is allowed to use a dot, slash (or horizontal line) to connect two parameter symbols to form a new parameter symbol. For example: gain Bandwidth product G·fi
Frequency drift coefficient d//dT7 or dr
4.6 In addition to the common parameter symbols of electron tubes listed in this standard, according to the above principles,According to the listed body mark, foot mark, side mark, top mark combination.
The marks not specified in this standard (body mark, mark, side mark, top mark) should be avoided as much as possible by using internationally accepted marks, and the marks derived from Chinese phonetics can be used.
4.7 For the parameters that change with time, their instantaneous values are expressed in lowercase letters, and their effective values are expressed in uppercase letters. 5 Common parameter symbols of electron tubes
The common parameter symbols of electron tubes are given in Table 5. Table 5 Common parameters of electronics Symbols
Parameter name
Filament voltage
Hot wire voltage
Hot wire preheating voltage
Filament voltage increase
Voltage between hot wire and steel electrode
Breakthrough voltage between hot wire and cathode
Withstand voltage between hot wire and plate
Cathode voltage
Photoelectrode voltage
Gate voltage
Cathode pulse voltage
Cathode signal voltage
Cathode cut-off voltage
Cathode voltage increase
Cathode voltage difference
Cathode voltage peak value
Gate AC voltage effective value
Break-out trigger pulse voltage
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