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Contact indicating method based on insulated measuring unit pair on surface of measured object

A technology for measuring units and object surfaces, which is applied in the field of high-precision measurement of large diameters, and can solve problems such as large measurement errors, increased measurement time, and reduced measurement efficiency

Inactive Publication Date: 2010-09-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when all the aforementioned portable general-purpose large-diameter measuring gauges are operated, whether the adjacent measuring units are in contact or not is completely controlled by the operator's hand feeling, and it is easy to produce the illusion of contact (false contact) without contact, resulting in gross measurement errors
In order to increase the reliability, it is often necessary to repeat the measurement, thus increasing the measurement time, reducing the measurement efficiency, and the operator also has a certain psychological burden

Method used

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  • Contact indicating method based on insulated measuring unit pair on surface of measured object
  • Contact indicating method based on insulated measuring unit pair on surface of measured object
  • Contact indicating method based on insulated measuring unit pair on surface of measured object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 As shown, it is a schematic diagram of a contact indication method based on a measurement unit pair with an insulated surface of the measured object in Embodiment 1 of the present invention. The steps of the contact indication method are as follows:

[0048] Step 1) Take a measuring unit pair; said measuring unit pair is made up of measuring unit A 1 and measuring unit B 2, wherein measuring unit A 1 comprises: a body A 13, a first positioning unit connected to both sides of the body A 13 respectively Element A 11 and the second positioning element A 12, wherein the outer surfaces of the first positioning element A 11 and the second positioning element A 12 are cylindrical or spherical; the measuring unit B 2 includes: a body B 23 connected to The first positioning element B 21 and the second positioning element B 22 on both sides of the body B 23, wherein the outer surfaces of the first positioning element B 21 and the second positioning element B 22 a...

Embodiment 2

[0059] Such as figure 2 As shown, it is a schematic diagram of another contact indication method based on the measurement unit pair with insulated surface of the measured object in Embodiment 2 of the present invention. The steps of the contact indication method are as follows:

[0060]Step 1) Take a measuring unit pair; said measuring unit pair is made up of measuring unit C3 and measuring unit D4, wherein measuring unit C3 comprises: a body C33, a first positioning unit respectively connected to both sides of the body C33 Element C 31 and second positioning element C 32, wherein the outer surfaces of the first positioning element C 31 and the second positioning element C 32 are cylindrical or spherical; the measuring unit D 4 includes: a body D 43, connected to The first positioning element D 41 and the second positioning element D 42 on both sides of the body D 43, wherein the outer surfaces of the first positioning element D 41 and the second positioning element D 42 are ...

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Abstract

The invention discloses a contact indicating method based on insulated measuring unit pair on the surface of measured object, used for measuring the diameter of the measured object with insulated surface by adopting a portable general large diameter measuring gauge with the measuring unit pair. Besides a body and two locating elements connected at the two sides of the body, the measuring unit pair also comprises two contact indicating circuits composed by an indicator and a battery which are connected in series, and the two contact indicating circuits are connected together by the adjacent locating elements in one measuring unit pair. When the adjacent locating elements in the measuring unit pair are contact on the circumference surface of the measured object with insulated surface, the indicator of one contact indicating circuit sends out an indicator signal. The invention has the advantages that: firstly, false contact in operation process and big error caused by false contact are avoided, thus ensuring measuring accuracy; secondly, burden of operator is relieved, especially psychological burden; and finally, reliability and efficiency of measuring are improved.

Description

technical field [0001] The invention provides a contact indication method based on a pair of measuring units with surface insulation of a measured object, which is used for high-precision measurement of the diameter of a measured object with surface insulation, especially a large diameter, and belongs to the technical field of length measurement. technical background [0002] Large diameter measurement is of great significance. Chinese patent (Patent No. 96117113.8 and application No. 200710024997.4) and US patent (Patent No. 6330753B1) describe a portable universal large diameter measuring gauge and its improved version. This measuring gauge consists of a series of independent measuring units and a device or accessory for measuring the so-called closed size, each of which includes a body, two positioning elements located on both sides of the body, several positioning elements located on the body or The fixed mechanism with built-in permanent magnet above, and several auxili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
Inventor 李彬
Owner SOUTHEAST UNIV
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