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Calibration device of multi-type three-directional acceleration sensor

A technology of acceleration sensor and calibration device, which is applied in the direction of testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, and measurement device, and can solve the problem of not meeting the requirements of vibration sensor frequency response calibration, three-way Acceleration sensor installation screw holes are not uniform, the three-way acceleration sensor is small, etc., to achieve the effect of light weight, meet the calibration requirements, and high reliability

Inactive Publication Date: 2018-02-27
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small size of the three-way acceleration sensor, most of them have only one mounting screw hole. The three-way acceleration sensor mounting screw holes produced by various manufacturers are not uniform, and most of the current standard vibration sources can only calibrate the high-frequency frequency response in one direction. The high-frequency frequency response in both directions is calibrated by glue
The calibration frequency of the adhesive vibration sensor is much lower than that of the screw connection, which cannot meet the requirements of the frequency response calibration of the vibration sensor

Method used

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  • Calibration device of multi-type three-directional acceleration sensor
  • Calibration device of multi-type three-directional acceleration sensor

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Embodiment Construction

[0011] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0012] A calibration device for a three-way acceleration sensor, such as figure 1 As shown, it includes a standard vibration source 1, an adapter bracket 2 and an adapter screw; the upper end of the standard vibration source is provided with a first threaded hole 3 for installing the adapter bracket; the center position of the upper end surface of the adapter bracket 2 and the lower end surface The central position of the center position is respectively fixed with the first stud 4 and the second stud 5, and the adapter bracket and the standard vibration source are fixed through the screw connection of the second stud 5 and the first threaded hole 3; the adapter The side w...

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Abstract

The invention provides a calibration device of a multi-type three-directional acceleration sensor, and relates to the technical field of engine vibration test. The calibration device comprises a standard vibration source, an adapter bracket and an adapter screw, wherein the adapter bracket comprises four studs, is fixed on the standard vibration source through the second stud at a lower center, and is connected with a three-directional acceleration sensor through the first stud on the upper end surface and the third and fourth studs with mutually vertical central axes on two side end surfaces,so as to realize calibration in three directions of the three-directional acceleration sensor in turn. The calibration device of the multi-type three-directional acceleration sensor, provided by theinvention, solves the problem of the prior art that a standard vibration source only can calibrate high-frequency frequency response in one direction of one type of three-directional acceleration sensor, and ensures high-frequency frequency response in three directions of the three-directional acceleration sensor, so as to guarantee the precision of vibration measurement of the three-directional acceleration sensor.

Description

technical field [0001] The invention relates to the technical field of engine vibration testing, in particular to a calibration device for multi-type three-direction acceleration sensors. Background technique [0002] The three-way acceleration sensor is widely used in vibration measurement and vibration test because of its small size, light weight, high precision and convenient installation. The three-way acceleration sensor measures the vibration of the measured object in three mutually perpendicular directions (Y axis, Z axis, X axis). The root mean square value of the vibration in each direction can directly reflect the evaluation of the vibration of the measured object. The vibration of the object in three mutually perpendicular directions plays an important role in judging the cause of the vibration problem of the measured object. Therefore, the measurement values ​​in each direction are required to be accurate and reliable, and the sensitivity accuracy of the calibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
CPCG01P21/00
Inventor 王海霞谭亮周扬娜冯鑫赵雪原
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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