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Three-axis intermediate-frequency vibration standard device

A standard device, intermediate frequency technology, applied in the field of three-axis intermediate frequency vibration standard device, can solve problems such as large errors in synchronous vibration calibration, and achieve the effect of improving accuracy and reliability

Inactive Publication Date: 2016-12-21
CHONGQING JIANSHE IND GRP
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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a three-axis intermediate frequency vibration standard device to solve the problem of large errors in the three-axis vibration sensitivity synchronous vibration calibration of three-axis piezoelectric accelerometers

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Embodiment Construction

[0020] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0021] The three-axis intermediate-frequency vibration standard device provided by the present invention includes: a three-axis intermediate-frequency standard vibration table, a vibration control system of the three-axis intermediate-frequency standard vibration table, and a three-axis laser vibration measurement system of the three-axis intermediate-frequency standard vibration table. The invention divides the three-axis intermediate-frequency vibration standard device into three parts, namely, a three-axis intermediate-frequency standard vibration table, a...

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Abstract

The invention provides a three-axis intermediate-frequency vibration standard device comprising a three-axis intermediate-frequency standard vibration stand, a vibration control system and a three-axis laser vibration measuring system. The three-axis intermediate-frequency standard vibration stand consists of a pedestal platform, an X-axis vibration table, a Y-axis vibration table, a Z-axis vibration table, an integrated vibration generator, a working table and a trapezoidal support seat. The vibration control system includes a computer control system, a six-path vibration controlling instrument, a three-axis power amplifier, a three axial piezoelectric accelerometer, a charge amplifier and an automatic centering device. The three-axis laser vibration measuring system consists of a three-axis laser vibration measuring instrument, a target and a three-axis laser vibration measuring instrument mounting bracket. With the three-axis intermediate-frequency vibration standard device, one-time synchronous measuring or calibration of sensitivity of the three axial piezoelectric accelerometer can be realized; the measuring / calibrating state of the three axial piezoelectric accelerometer conforms to the working state of the three axial piezoelectric accelerometer; and accuracy and reliability of the sensitivity measuring value are improved.

Description

technical field [0001] The invention relates to the technical field of vibration measurement, and more specifically relates to a three-axis intermediate-frequency vibration standard device capable of performing three-axis synchronous vibration measurement or calibration on a three-axis piezoelectric accelerometer. Background technique [0002] At present, the General Administration of Quality Inspection and Quarantine of the People's Republic of China has issued the JJG233-2008 Piezoelectric Accelerometer Verification Regulations, which stipulates that there are comparative method and absolute method for the verification of piezoelectric accelerometer sensitivity. This method is suitable for the sensitivity verification of uniaxial piezoelectric accelerometers. / calibration. The vibration measurement standards established by the National Academy of Metrology, the First Metrology and Testing Technology Research Center of National Defense Science and Technology Industry, and v...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/08G01P21/02
CPCG01H11/08G01P21/02
Inventor 曹久大张大治陈璐赵树波朱超何军
Owner CHONGQING JIANSHE IND GRP
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