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Vernier caliper

A vernier caliper and vernier technology, which is applied in the field of measurement, can solve problems such as measurement errors, and achieve the effects of ensuring consistency, improving reliability and measurement accuracy

Inactive Publication Date: 2015-02-11
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that errors are prone to occur in the measurement of measurement samples in the prior art, and provides a vernier caliper that can effectively solve the above problems and improve the reliability and measurement accuracy of the measurement results

Method used

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] In an embodiment of the present invention, a vernier caliper is provided, such as figure 1 As shown, it includes a main ruler 1, a vernier 2, an inner measuring claw 3, an outer measuring claw 4, and a depth gauge 5. The vernier caliper includes a stress display device, and the stress display device includes a stress digital display 12, a strain gauge 11, and a strain gauge control mechanism. , the stress digital display and the strain gauge control mechanism are both arranged on the vernier, and at least one strain gauge is respectively arranged on the inner measuring claw, the outer measur...

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Abstract

The invention discloses a vernier caliper. The vernier caliper comprises a main scale, a vernier, an inner measuring claw, an outer measuring claw, a depth gauge and a stress display device, wherein the stress display device comprises a stress digital display, strain gauges and a strain gauge control mechanism; the stress digital display and the strain gauge control mechanism are both arranged on the vernier; the inner measuring claw, the outer measuring claw and the depth gauge are provided with at least one strain gauge respectively. The vernier caliper has the beneficial effects that a measuring result caused by different deformations of a test sample due to different finger thrusts of a user is avoided, and meanwhile the measuring error caused by extrusion of the inner measuring claw, the outer measuring claw or the depth gauge to an easily deformable object during measurement of the easily deformable object can also be avoided. Thus the consistency of measuring conditions can be guaranteed, and the reliability and the measuring accuracy of the measuring result are improved.

Description

technical field [0001] The invention relates to the field of measurement, in particular to a vernier caliper. Background technique [0002] A vernier caliper is a measuring tool for measuring length, inner and outer diameters, and depth. The vernier caliper is composed of two parts, the main ruler and the sliding vernier attached to the main ruler. The main scale and vernier of the vernier caliper have two sets of movable claws, which are the inner measuring claw and the outer measuring claw. The inner measuring claw is usually used to measure the inner diameter, and the outer measuring claw is usually used to measure the length and outer diameter. However, all the vernier calipers currently on the market often have measurement errors caused by different deformations of the test samples due to different thrusts of the user's fingers during the measurement process; The impact of claw or depth gauge extrusion is easy to cause measurement error. This is the weak point that ...

Claims

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Application Information

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IPC IPC(8): G01B3/20
Inventor 邓利明蒋楠肖铭钊蔡兵华李扬余望芝陆金龙
Owner WUHAN MUNICIPAL CONSTR GROUP
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