Contact type micro-displacement detection device

A technology of displacement detection and measuring rod, which is applied in the field of measurement to achieve the effects of fast response, improved service life and guaranteed measurement accuracy

Active Publication Date: 2021-04-20
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above technical solution has the following technical problems: it is impossible to avoid various uncertain factors such as light source error, geometric installation error and error caused by environmental factors.

Method used

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  • Contact type micro-displacement detection device
  • Contact type micro-displacement detection device

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] Such as Figure 1-Figure 2 As shown, a contact-type micro-displacement detection device includes a hollow casing, and a measuring rod 11 is arranged horizontally inside the casing, and the left end of the measuring rod 11 passes out of the casing. Preferably, the measuring head 10 is provided at the left end of the measuring rod 11, and the left end of the measuring head 10 is in the shape of a smooth arc. The left end of the measuring rod 11 can be protected, and abrasion caused by friction between the measuring rod 11 and the d...

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Abstract

The invention provides a contact type micro-displacement detection device which comprises a hollow shell. A measuring rod is transversely arranged in the shell, the left end of the measuring rod penetrates out of the shell, the upper side and the lower side of the measuring rod are sequentially provided with magnetic control elastomers, piezoelectric patches and U-shaped mounting grooves from inside to outside, and the two U-shaped mounting grooves are arranged back to back, and cavities used for containing the first permanent magnet and the second permanent magnet are formed respectively with the upper inner side wall and the lower inner side wall of the shell, the two piezoelectric patches are connected with leads, a directional plate is fixedly arranged on the right side in the shell, the right end of the measuring rod penetrates through the directional plate and is freely suspended, and a cushion block is arranged on the right inner side wall of the shell. Guide rings are arranged on the left side wall of the shell and the directional plate, a left push plate is fixedly connected to the left side of the measuring rod, a right push plate is fixedly connected to the right side of the measuring rod, a left elastic reset mechanism is connected between the left push plate and the left side wall, and a right elastic reset mechanism is connected between the right push plate and the directional plate. Tiny displacement generated by an object can be accurately detected.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a contact type micro-displacement detection device. Background technique [0002] Micro-displacement detection technology is one of the key technologies in precision positioning, precision instrument manufacturing, precision measurement and other application fields, and occupies an extremely important position in cutting-edge industrial production fields and scientific research. With the continuous advancement of science and technology, the rapid rise of micro-nano technology has made the requirements for micro-displacement detection technology continue to increase. [0003] The patent document whose publication number is CN208902127U discloses a kind of optical fiber micro-displacement sensor, which includes a transmission rod, two serrated reflectors arranged oppositely, and two collimating lenses respectively injected and emitted; the transmission rod pushes one of the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/02
Inventor 居本祥米曾真
Owner CHONGQING UNIV OF TECH
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