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A high precision capacitive pressure sensor

A pressure sensor and capacitive technology, applied in the field of sensors, can solve the problems of low sensor accuracy and unsatisfactory use effect

Active Publication Date: 2018-10-12
蚌埠大洋传感系统工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The existing sensors are not accurate enough, and the effect is not ideal, so further improvement is needed

Method used

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  • A high precision capacitive pressure sensor
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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other; the present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] refer to figure 1 , 2 :

[0039] A high-precision capacitive pressure sensor proposed by the present invention includes a housing 1, a pressure plate 2, a balance bar 3, a load-bearing plate 4, a plurality of first measuring units, wires, a controller, and a display; the balance bar 3 consists of the following components Its mass percentage composition: C: 2.45, Si: 0.9%, Mn: 0.65%, Cr: 14.5%, Ni: 0.12%, V: 0.15%, and the balance is Fe. C and other elements cooperate with each other to improve hardenability and wear resistance; Si strengthens the structure and improves wear resistance; Ni and V can refine grains, improve wear resistance and increase strength;...

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Abstract

The invention discloses a high-precision capacitive pressure sensor. The high-precision capacitive pressure sensor comprises a shell body, a pressure plate, a balancing rod, a bearing plate, a plurality of first measuring units, a lead wire, a controller and a display, wherein installation holes are formed in the top wall of the shell body, a plurality of first measuring holes are formed in the side wall of the shell body, an accommodating space is formed in the shell body, and a fluid medium is arranged in the accommodating space; a sliding groove is formed in the inner circumferential surface of the shell body, and the sliding groove is formed in the vertical direction; and the pressure plate is accommodated in the accommodating space, the pressure plate is horizontally arranged and positioned on the fluid medium, the lower surface of the pressure plate is adhered with the surface of the fluid medium, the pressure plate is connected with the sliding groove in a movable manner, and the pressure plate is connected with the inner circumferential surface of the shell body in a sealed manner.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a high-precision capacitive pressure sensor. Background technique [0002] A sensor is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, and display. , recording and control requirements. [0003] The characteristics of sensors include: miniaturization, digitization, intelligence, multi-function, systemization, and networking. It is the first link to realize automatic detection and automatic control. The existence and development of sensors allow objects to have senses such as touch, taste, and smell, and make objects come alive slowly. Usually according to its basic perception function, it can be divided into ten categories such as thermal sensor, light sensor, ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/14G01L9/12
CPCG01L1/14G01L9/12
Inventor 闫游洋
Owner 蚌埠大洋传感系统工程有限公司