GB/T 5170.19-1989 Basic parameter verification method for environmental test equipment for electrical and electronic products Temperature/vibration (sinusoidal) comprehensive test equipment GB/T5170.19-1989 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Environmental testing equipment for electric and electronic products
Basic parameter verification methods
Temperature/vibration (sinusoidal) combined test equipmentIaspection methods for basic parameters of emrlronmental testingequlpmeats for electric and electronic productsCombined temperature/vibration (Sinusoldal) testing equtpmentsSubject content and scope of application
This standard specifies the basic parameter verification methods for temperature/vibration (sinusoidal) combined test equipment. This standard applies to temperature/vibration (sinusoidal) combined test equipment. GB5170.19—89
The verification method determined in this standard is consistent with the verification method of the basic parameters of the test equipment (hereinafter referred to as the equipment) used in the tests according to GB2423.35 "Basic environmental test procedures for electric and electronic products Test Z/AFc: Low temperature/vibration (sinusoidal) comprehensive test method for heat dissipation and non-heat dissipation test samples" and GB2423.36 "Basic environmental test procedures for electric and electronic products Test Z/BFc: High temperature/vibration (stopped string) comprehensive test method for heat dissipation and non-heat dissipation test samples". 2 Reference standards
GB5170.1 General principles for verification methods of basic parameters of environmental test equipment for power plant products GB5170.2 Verification methods of basic parameters of environmental test equipment for electronic products - Low temperature test equipment GB5170.3 Verification methods of basic parameters of environmental test equipment for electrical and electronic products - High temperature test equipment GB5170.13 Verification methods of basic parameters of environmental test equipment for electric and electronic products - Mechanical moving table for vibration (sinusoidal) test GB5170.14 Verification methods of basic parameters of environmental test equipment for electric and electronic products - Electric vibration table for vibration (sinusoidal) test GB5170.15 Verification methods of basic parameters of environmental test equipment for electronic products - Hydraulic vibration table for vibration (chord) test GB2423.1 Basic environmental test procedures for power plant products Test A: Low temperature test method GB2423.2 Draft of basic environmental test procedures for electric and electronic products! Test B: High temperature test method 3 Verification requirements, items, and main instruments used 3.1 Verification requirements
Before the temperature/vibration (sinusoidal) comprehensive test equipment is verified, its temperature box (chamber) and moving table (including additional table top) should be verified according to the methods specified in GB5170.2~5170.3 and GB5170.13~5170.15 respectively. Comprehensive verification can only be carried out after passing the verification. 3.2 Comprehensive verification items
a. Temperature error,
b. Temperature change rate:
c. Amplitude indication error:
Acceleration waveform distortion:
e. Lateral vibration;
Table amplitude uniformity.
Approved by the Ministry of Machinery and Electronics Industry of the People's Republic of China on February 28, 1989 and implemented on January 1, 1990
8.3 Main instruments for calibration
GB 51T0.1989
The main instruments for calibration shall comply with the relevant provisions of GB5170.1~5170.3 and GB5170.13~5170.15. The accelerometer shall be calibrated at the corresponding calibration temperature. The calibration result shall meet the accuracy requirements specified in the relevant standards. Note: If the accelerometer cannot be calibrated at the corresponding calibration temperature, it shall be stated in the calibration report. 4 Calibration method
The comprehensive calibration is carried out under no-load conditions.
4.1 Number and arrangement of test points
The number and arrangement of test points of the temperature box (room) and the alarm station shall comply with the relevant provisions of GB5170.1~5170.3 and GB5170.13~5170.15.
4,2 Determination of verification temperature value and verification frequency value 4.2.1 Verification temperature value
There are three verification temperature values: the first is 15~35℃, the second is the extreme nominal low temperature value of the temperature box (room) or the representative nominal temperature point specified in GB2423.1, and the third is the extreme nominal high temperature value of the temperature box (room) or the representative nominal temperature point specified in GB2423.2.
4.2.2 Verification frequency value
The selection of verification frequency value shall comply with the relevant provisions of GB5170.13~5170.15. 4.3 Verification steps
Combine the temperature box (room) and the moving table into a comprehensive test equipment, and arrange the temperature sensor and acceleration sensor respectively according to the provisions of Article 4.1 of this standard. The comprehensive verification procedure is as follows. 4.3.1 Moving verification at normal temperature
The temperature in the working space of the temperature box (room) is maintained at 15~35°C, start the vibration table, and test and verify the amplitude indication error, acceleration waveform distortion, lateral vibration and table amplitude uniformity of the vibration table according to the provisions of GB 5170.13~5170.15. 4,3.2 Temperature error and temperature change rate of low temperature (or high temperature) without moving Delay the temperature box (room) to cool down (or heat up) to the specified verification temperature value. When the temperature of the geometric center point of the working space reaches the set temperature value for the first time, record the time for the geometric center point to cool down (or heat up) from room temperature (15~35℃) to the verification temperature value. At the same time, the temperature box (room) is allowed to stabilize at this calibration temperature for 60 minutes, and then the temperature error is tested. During the test, the temperature of each test point is recorded every 2 minutes, and a total of 15 tests are conducted within 30 minutes.
4.8.3 Temperature/vibration comprehensive verification
After the verification of Article 4.3.2 of this standard, the vibration table is vibrated, during which the amplitude indication error, acceleration waveform distortion, transverse vibration and table surface amplitude uniformity of the vibration table are tested and verified according to the provisions of GB5170.13~5170.15. While testing the performance of the vibration table, the temperature error of the working space of the temperature box (room) is tested, and the temperature of each test point is recorded every 2 minutes during the test. According to the requirements of relevant standards, the comprehensive verification time of temperature and vibration should generally be no less than 30 minutes. The low temperature/vibration comprehensive verification procedure diagram is in accordance with Figure 1, the high temperature/vibration comprehensive verification procedure diagram is in accordance with Figure 2; the high and low temperature/vibration comprehensive verification procedure diagram is in accordance with Figure 3. Refer to Table A1 in Appendix A for the temperature error test record table. Refer to Table A2 in Appendix A for the vibration performance test record table. Degree
(C)TLow temperature
Time (min)
Temperature error
THigh temperature
15 ~ 35bzxz.net
Time (min)
Temperature error
Dynamic fat
GB 5170.19—89
Degradation stage
Figure 1 Low temperature/vibration comprehensive verification procedure diagram
Heating stage
Figure 2 High temperature/vibration comprehensive verification procedure diagram
THigh temperature
TLow temperature
Time (minutes)
Temperature reading difference
Perturbation performance
4.4 Data processing and result analysis
GB5170.19—89
Figure 3 High and low temperature/vibration comprehensive verification procedure diagram 3030
The data processing method of temperature error, temperature change rate of the working space of the temperature box (room), amplitude indication error of the vibration table, acceleration waveform distortion, lateral vibration, table amplitude uniformity, etc. should comply with the relevant provisions of GB5170.2~5170.3 and GB5170.13~5170.15.
The test results should meet the relevant requirements of GB2423.35 and GB2423.36. Model name of the equipment to be tested,
Model name of the calibration instrument:
Calibration environment conditions:
Calibration temperature:
Vibration rate
Test temperature
Test point
GB 6170.19—88
Appendix A
Test record table example
(reference)
Table A1 Comprehensive calibration temperature error test record table Accuracy
Test time
Relative humidity
Model name of the equipment to be tested
Model name of the calibration instrument:
Calibration environment conditions;
Calibration accuracy
Acceleration rate, H2
Test point
Movement indication error
Lateral motion. %
Acceleration waveform distortion. %
Uniformity of slow acceleration value, %
Verification period:
Verification personnel:
Additional instructions:
GB 5170.19 —89
Vibration performance test record table during comprehensive verification Temperature
Relative humidity
This standard is proposed and managed by the National Technical Committee for Environmental Conditions and Environmental Testing of Electrical and Electronic Products. This standard was drafted by the Fifth Institute of the Ministry of Machinery and Electronics Industry and other units. The main drafters of this standard are Fu Wenru, Zhang Linzhen, Huang Shufu, Wang Yingzhe, Xue Falai, etc. Accuracy
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