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Device and method for improving the accuracy of angular velocity sensors

An angular velocity sensor, angular velocity technology, applied in the testing/calibration of velocity/acceleration/shock measurement equipment, velocity/acceleration/shock measurement, measurement device, etc. Angular velocity value, 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 angular velocity sensor, which can solve the problem in the prior art that the "zero offset" of the angular velocity sensor cannot be corrected in time

Method used

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  • Device and method for improving the accuracy of angular velocity sensors
  • Device and method for improving the accuracy of angular velocity sensors
  • Device and method for improving the accuracy of angular velocity sensors

Examples

Experimental program
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Embodiment 1

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

[0045] Wherein, the first angular velocity sensor 10 and the second angular velocity sensor 20 are used to simultaneously measure the angular velocity when the same object rotates, and the first angular velocity sensor 10 and the second angular velocity sensor 20 are reversely and symmetrically installed on both sides of the rotation axis of the same object .

[0046] When installing, install the first angular velocity sensor 10 and the second angular velocity sensor 20 on the same side of the PCB board (left-right symmetrical installation method), the measuring axis of the first angular velocity sensor 10 and the measuring axis of the second angular velocity sensor 20 and the object to...

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 angular velocity sensor according to Embodiment 2 of the present invention; figure 2 and image 3 As shown, during installation, the first angular velocity sensor 10 and the second angular velocity sensor 20 are symmetrically installed on both sides of the PCB board (up and down symmetrical installation method), and the measuring axis of the first angular velocity sensor 10 and the measuring axis of the second angular velocity sensor 20 are aligned with the The rotation axes of the objects to be measured are parallel to each other. If conditions permit, try to arrange the first angular velocity sensor 10 and the second angular velocity sensor 20 on the rotation axes of the objects to be measured, while ensuring that the first angular velocity sensor 10 and the second sensor 20 The directio...

Embodiment 3

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

[0052] When the object rotates, the output angular velocity value of the first angular velo...

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Abstract

The invention provides a device for improving the accuracy of angular velocity sensors. The device comprises a first angular velocity sensor and a second angular velocity sensor, wherein the first angular velocity sensor and the second angular velocity sensor are used for simultaneously measuring the angular velocity of an object during rotating, and are reversely and symmetrically mounted on two sides of a rotating shaft of the object. The invention further discloses a method for improving the accuracy of the angular velocity sensors. According to the device and the method, the two angular velocity sensors are reversely and symmetrically mounted, so that zero offset can be marked without the need of resting the angular velocity sensors and zero offset of the angular velocity sensors can be corrected in time.

Description

technical field [0001] The invention relates to the field of error correction of an angular velocity sensor, and more particularly, relates to a device and method for improving the accuracy of an angular velocity sensor. Background technique [0002] The current angular velocity sensors all have a "zero offset" drift phenomenon, and the angular velocity sensors with different precisions have different degrees of drift. At present, the angular velocity value output by the angular velocity sensor is generally integrated to obtain the rotation angle 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 angular velocity sensor rotates at a certain angle. The longer the time, the larger the angle, but in fact the angular velocity sensor does n...

Claims

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Application Information

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IPC IPC(8): G01P21/02
Inventor 黄喜荣
Owner BEIJING ITSYNC TECH