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High precision micro-sensor and its manufacture method

A micro-sensor, high-precision technology, applied in instruments, force/torque/power measuring instruments, measuring devices, etc., can solve problems such as reducing pantograph performance and affecting pantograph-catenary dynamic characteristics

Inactive Publication Date: 2010-09-08
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The difficulty of pantograph-catenary contact pressure detection is that you cannot add weight to the pantograph at will, otherwise it will affect the dynamic characteristics of the pantograph-catenary and reduce the performance of the pantograph

Method used

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  • High precision micro-sensor and its manufacture method
  • High precision micro-sensor and its manufacture method
  • High precision micro-sensor and its manufacture method

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] If a strain gauge is used as a sensitive element, the method shown in Figure 2 can be used for pressure curing. In Fig. 2, the film 1b is placed between the strain gauge and the rubber 2b, and the hard plate 3b is pressed by the insert 4b and tightly pressed against the rubber sheet to exert pressure. The insert 4b does not have to be circular, but any hard object that can be used for squeezing. It is also possible not to use the plug-in 4b, but to adopt any solution that can close the hard plate 3b and the rubber pad 2b together.

[0021] For different pantographs, different force guiding devices should be used. The implementation cases of several force guiding devices are introduced below.

[0022] 1. One of the implementation cases of the force guiding device is shown in Figure 3. First, cut the original connection part of the pantograph slide and the bracket at 4c, and weld it with a metal sheet. The housing 6c of the force guiding device and the sliding plate 5c are...

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PUM

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Abstract

This invention relates to a high accuracy mini-spoke-like sensor and force-guiding device. This sensor comprises the following parts: elastic body (the length of the axle can be lengthened according to the need) contains rim (1a), spoke (2a) and axle (3a), sensitive element (4a) and the protector composing of the sealing diaphragm (6a) and (7a), which is characterized by the following: the diameter is much less than the traditional spoke-like sensor. This design and craft can make the mini-spoke-like sensor satisfy the dimension of the sensor or the strict standard quality. The force-guiding device which measures the parameter of the electrical road pantograph and the touching pressure among the halftone contact is a double layer casing structure. One of the casings connects the slide (also named bower) of the pantograph; the other connects the shelf of the pantograph.

Description

(1) Technical field [0001] The invention relates to a high-precision miniature sensor, and the invention also relates to a manufacturing method of the high-precision miniature sensor. [0002] In the family of high-precision sensors, spoke-type sensors are favored by people for their high accuracy and strong anti-interference ability. This type of elastic body structure has the characteristics of little influence on the displacement of the force point and minimal volume change caused by deformation, and its working state is very stable. At the same time, there is excellent natural linearity. As a weighing sensor, it has been widely used in medium-range (500kg-50t) measurement in various countries since the end of the 1970s; it also has a wide range of applications as a torque sensor. [0003] The detection of pantograph and net contact pressure is an internationally advanced method of pantograph and net detection. By detecting the contact pressure between pantograph and net, many ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
Inventor 李丰良李敏
Owner CENT SOUTH UNIV