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Micro force measuring device

A technology of measuring device and measuring circuit, which is applied in the direction of measuring device, measuring force, and the measurement of balancing force using force, etc., can solve the problems of high cost, complex structure, and difficulty in fixing the action line of force, and achieves convenient operation and control. Simple, low-force effects

Inactive Publication Date: 2013-11-13
JILIN UNIV
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to propose a micro-force measuring device, which solves the problems of complex structure, hard line of action of force and high cost in the prior art

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] See attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 And attached Figure 5 , the micro force measuring device of the present invention comprises unequal arms balance, force value reproduction device, micro displacement measuring device, measuring circuit and computer control processing system; The long arm end of described unequal arm balance is provided with tray 1, and short arm The end is provided with a side knife structure, and the side knife structure is connected with the micro-displacement measuring device through a force value reproduction device; the force value reproduction device includes an inner electrode 7, an outer electrode 26, an insulating sleeve 8, a rubber gasket 27, Linear bearing 28, steel sleeve 9 and bearing seat 10; the upper end of the inner electrode 7 is connected with the side knife bearing 6 of t...

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Abstract

The invention provides a micro force measuring device, belongs to the technical field of micro force value calibration and measurement testing, and aims to solve the problems that the structure is complex, the action line of the force cannot be fixed easily, and the cost is high in the prior art. The micro force measuring device comprises an unequal arm balance, a force value replication device, a micro-displacement measuring device and a computer control system, wherein a tray is arranged at a long arm end part of the unequal arm balance; an edge cutter structure is arranged at a short arm end part; the edge cutter structure is connected with the micro-displacement measuring device through the force value replication device; the output end of the micro-displacement measuring device is connected with an insulating rod through a connecting sleeve; and the insulating rod is connected with a threaded hole in an upper end cover of an inner electrode of the force value replication device. According to the micro force measuring device, the force value replication device is used for replicating a micro force value, relative micro displacement of the inner electrode is measured through an improved digital display micrometer, the force value change is changed into the precision capacitance gradient change of an electricity quantity relative to the displacement, balance is formed through a lever structure and a standard weight dead weight force, the structure is simple, and the cost is lower.

Description

technical field [0001] The invention belongs to the technical field of micro-force value calibration and measurement testing, and in particular relates to a micro-force measuring device. Background technique [0002] Force value is one of the basic values ​​in the field of mechanical metrology, and force value measurement is widely used in various fields of national life. In recent years, with the continuous development of micro-nano electromechanical systems and micro-nano metrology, a large number of small force values ​​have been measured in scientific research and daily life, such as orthodontics in stomatology, nanohardness, mechanical research in MEMS, etc. . All measuring instruments must pass metrological verification or calibration to ensure the accuracy and reliability of their measurement data, and force measuring instruments are no exception. However, the existing force value transmission system in my country (JJG2045-1990 "Force Value (≤1MN) Measurement and Ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00G01L1/08
Inventor 于立娟牛亚楠张学成王海军
Owner JILIN UNIV
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