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GB/T 20485.31-2011 English PDF

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GB/T 20485.31-2011: Methods for the calibration of vibration and shock transducers -- Part 31: Testing of transverse vibration sensitivity
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 20485.31-2011	English	334	Add to Cart	3 days [Need to translate]	Methods for the calibration of vibration and shock transducers -- Part 31: Testing of transverse vibration sensitivity	Valid	GB/T 20485.31-2011

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Basic data

Standard ID	GB/T 20485.31-2011 (GB/T20485.31-2011)
Description (Translated English)	Methods for the calibration of vibration and shock transducers -- Part 31: Testing of transverse vibration sensitivity
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J04
Classification of International Standard	17.160
Word Count Estimation	17,166
Date of Issue	2011-12-30
Date of Implementation	2012-10-01
Older Standard (superseded by this standard)	GB/T 13823.8-1994
Quoted Standard	GB/T 20485.1-2008; ISO 266
Adopted Standard	ISO 16063-31-2009, IDT
Regulation (derived from)	National Standard Approval Announcement 2011 No.22
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the equipment and method of transverse vibration sensitivity testing. This method is suitable for straight-line speed and acceleration sensors. This section gives the vibration sensitivity of the sensor in the plane perpendicular to the sensitive axis geometry generated (see Appendix A) test methods and procedures. Since the lateral vibration sensitivity varies with the size and orientation changes, and therefore a variety of methods to determine the maximum value. Transverse axis maximum sensitivity and the sensitivity of the sensor geometry is the ratio of the maximum transverse sensitivity, and also as the angle the maximum lateral azimuth sensor sensitivity. Methods and techniques presented in this section to achieve a sensor installed in the testing process, avoiding the larger measurement uncertainty due to the installation of the sensor repeat introduced. This section presents three different test methods: single-axis vibration excitation. Biaxial and triaxial vibration excitation method of vibration excitation. Simultaneous excitation triaxial vibration measurements and geometry sensitive direction transverse sensitivity, thus simulating a real-world environment situation by the multi-axial sensor vibration. This section applies to the frequency range of 1Hz ~ 5kHz, a dynamic range of 1m/s2 ~ 1000m/s2 (depending on frequency) and 1mm/s ~ 1m/s (depending on frequency). Although the system can achieve the above -mentioned range of the measurement, but specific for each system usually has its limitations, and their actual use of much smaller. The method presented in this section are the reference sensor and the laser interferometer transverse sensitivity of the comparator output is obtained. Expanded uncertainty given in this section transverse sensitivity was 0. 1% (coverage factor k = 2).

GB/T 20485.31-2011: Methods for the calibration of vibration and shock transducers -- Part 31: Testing of transverse vibration sensitivity

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for the calibration of vibration and shock transducers Part 31. Testing of transverse vibration sensitivity ICS 17.160 J04 National Standards of People's Republic of China Replacing GB/T 13823.8-1994 Calibration of vibration and shock pick Part 31. Testing of transverse vibration sensitivity Part 31. Testingoftransversevibrationsensitivity (ISO 16063-31.2009, IDT) Issued on. 2011-12-30 2012-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 20485 "calibration of vibration and shock sensor" composed by the following categories. --- Category 1. Basic Concepts; --- Category 2. Absolute calibration methods (such as. vibration calibration by laser interferometry, laser interferometry impact absolute calibration); --- Class 3. calibration by comparison (eg. Vibration calibration by comparison, the impact of comparison calibration); --- Category 4. Environmental analog calibration (eg. magnetic sensitivity, sound sensitivity, the base strain sensitivity, transverse vibration sensitivity, etc.). This part belongs to category 4, the GB/T 20485 of Part 31. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 13823.8-1994. This portion of the GB/T 13823.8-1994 The main difference is. --- GB/T 13823.8-1994 only a method is proposed, and this section presents three different test methods. single-axis vibration excitation Reed Act, two-axis vibration excitation method and triaxial vibration excitation. This section uses the translation method identical with ISO 16063-31.2009 calibration method "of vibration and shock transducers - Part 31. Horizontal Vibration sensitivity test "(in English). This part of the National mechanical vibration, shock and condition monitoring Standardization Technical Committee (SAC/TC53) and focal points. This section drafted by. China Testing Technology Research Institute, China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Research Institute, Shaanxi Western Province Institute of Metrology, Jiangsu United Electronic Technology Co., Aerospace Technology Group Corporation No. 704 Institute. The main drafters of this section. Zhu Sha, Li Xinliang, Qin Yu, Chen Qi Shan, Lu Min. This part of the standard replaces the previous editions are. --- GB/T 13823.8-1994. Calibration of vibration and shock pick Part 31. Testing of transverse vibration sensitivity

1 Scope

This section GB/T 20485 specifies the equipment and method of transverse vibration sensitivity testing. This method is suitable for straight-line speed, and Accelerometer. This section gives a vibration sensor in the plane perpendicular to the direction of the sensitive axis geometry generated sensitivity (see Appendix A) test Methods and procedures. Due to lateral vibration sensitivity varies with the size and orientation changes, and therefore there are a variety of methods to determine its maximum value. horizontal The sensitivity of the sensor geometry axis maximum sensitivity of the ratio of the maximum transverse sensitivity, while at this time also is the largest angle sensor Transverse sensitivity azimuth. Methods and techniques of this section gives the realization of a sensor installed in the test process, to avoid repetition due to the sensor installation The introduction of large measurement uncertainty. This section presents three different test methods. single-axis vibration excitation method, and tri-axis vibration excitation method Shaft vibration excitation. Simultaneous excitation triaxial vibration measurements and geometric sensitive direction transverse sensitivity, thus simulating the real environment sensor Case by multi-axial vibration. NOTE. In the bending beam design which accelerometer transverse sensitivity measured in the direction of the sensitive axis geometry no vibration to the accelerometers and vibration as There are significant differences when used in sensitive geometry axis accelerometer (for example, when the measured vibration due to bending beam deflection). This section applies to the frequency range of 1Hz ~ 5kHz, the dynamic range of 1m/s2 ~ 1000m/s2 (depending on the frequency dependent) and 1mm/s ~ 1m/s (depending on the frequency dependent). Although the system of the above mentioned ranges can perform these measurements, but each specific system System usually has its limitations, the actual use of much smaller. The method given in this section are reference sensors and laser interferometer transverse sensitivity of the comparator output is obtained. Transverse sensitivity of the expanded uncertainty is given in this section was 0.1% (coverage factor k = 2), if the transverse sensitivity of the sensor The percentage sensitivity to express uncertainty will be smaller.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 20485.1-2008 calibration of vibration and shock transducers - Part 1. Basic Concepts (ISO 16063-1.1998, IDT) ISO 266 Acoustics common frequency (Acoustics-Preferredfrequencies)

3 Measurement Uncertainty

Transverse sensitivity to 1%, for example, expanded uncertainty of 0.1% (see Chapter 1) refers to the measured value should be between 1.1% and 0.9%. We hope that all use the GB/T 20485 users evaluate measurement uncertainty in accordance with GB/T 20485.1-2008 APPENDIX A Report, containing the expanded uncertainty factor of 2 or take confidence probability is 95%. Laboratory or the end user's responsibility to ensure the expanded uncertainty Of report data is credible.

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