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Device and method for improving accuracy of acceleration sensors

An acceleration sensor and acceleration technology, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, measurement devices, etc. Acceleration value, the effect of reducing system cost

Inactive Publication Date: 2014-04-02
BEIJING ITSYNC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a device and method for improving the accuracy of the acceleration sensor, which can solve the problem in the prior art that the "zero offset" of the acceleration sensor cannot be corrected in time

Method used

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  • Device and method for improving accuracy of acceleration sensors
  • Device and method for improving accuracy of acceleration sensors
  • Device and method for improving accuracy of acceleration sensors

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] figure 1 It shows a schematic structural diagram of a device for improving the accuracy of an acceleration sensor according to Embodiment 1 of the present invention; figure 1 As shown, the device includes: a first acceleration sensor 10 and a second acceleration sensor 20,

[0045] Wherein, the first acceleration sensor 10 and the second acceleration sensor 20 are used to measure the acceleration when the same object moves simultaneously, and the first acceleration sensor 10 and the second acceleration sensor 20 are oppositely and parallelly installed on both sides of the moving direction of the same object .

[0046] When installing, install the first acceleration sensor 10 and the second acceleration sensor 20 on the same side of the PCB (left and right parallel installation), the measurement direction of the first acceleration sensor 10 and the measurement direction of the second acceleration sensor 20 are consistent with the object to be measured The moving direct...

Embodiment 2

[0049] figure 2 and image 3 Respectively show a structural schematic diagram of a top view and a schematic structural diagram of a side view of a device for improving the accuracy of an acceleration sensor according to Embodiment 2 of the present invention; figure 2 and image 3 As shown, during installation, the first acceleration sensor 10 and the second acceleration sensor 20 are installed in parallel on both sides of the PCB board (up and down parallel installation method), and the measurement direction of the first acceleration sensor 10 and the measurement direction of the second acceleration sensor 20 are the same as The moving directions of the measuring objects need to be parallel to each other, and at the same time, it is ensured that the measuring directions of the first acceleration sensor 10 and the second sensor 20 are opposite.

Embodiment 3

[0051] Figure 4 A schematic structural diagram of a device for improving the accuracy of an acceleration sensor according to Embodiment 3 of the present invention is shown; Figure 4 As shown, the first acceleration sensor 10 and the second acceleration sensor 20 can also be reversely and parallel installed on the same side of the moving direction of the same object (front and rear parallel installation), at this time, the first acceleration sensor 10 and the second acceleration sensor The sensor 20 is installed on the same side of the PCB board, and the measurement direction of the first acceleration sensor 10 and the measurement direction of the second acceleration sensor 20 are parallel to the moving direction of the object to be measured, while ensuring the first acceleration sensor 10 and the second sensor 20. The direction of measurement is reversed.

[0052] When the object is moving, the output acceleration value of the first acceleration sensor 10 is opposite to the...

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Abstract

The invention provides a device for improving the accuracy of acceleration sensors. The device comprises a first acceleration sensor and a second acceleration sensor, wherein the first acceleration sensor and the second acceleration sensor are used for simultaneously measuring the accelerated velocity of an object during moving, and are reversely and parallelly mounted on two sides of the moving direction of the object. The invention further discloses a method for improving the accuracy of the acceleration sensors. According to the device and the method, the two acceleration sensors are reversely and parallelly mounted, so that zero offset of the acceleration sensors can be marked quickly and simply and corrected in time.

Description

technical field [0001] The invention relates to the field of acceleration sensor error correction, and more particularly, to a device and method for improving the accuracy of an acceleration sensor. Background technique [0002] The current acceleration sensors all have a "zero offset" drift phenomenon, and the acceleration sensors with different precisions have different degrees of drift. At present, the acceleration value output by the acceleration sensor is generally integrated to obtain the moving distance of the sensor. If the "zero offset" drift is not corrected or processed, it will lead to errors in the measurement results. And this error increases with time. Even in the static state of the sensor, because of the existence of "zero bias", the result obtained after a period of time is: the acceleration sensor has moved a certain distance. The longer the time, the farther the distance is, but in fact the acceleration sensor does not move; and this "zero offset" is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
Inventor 黄喜荣
Owner BEIJING ITSYNC TECH