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Light pressure sensor

A technology of pressure sensor and light sensing, which is applied in the direction of measuring the change force of the optical properties of the material when it is stressed, can solve the problems of inaccurate pressure detection, sensor electromagnetic signal failure, etc., and achieve the effect of accurate pressure detection

Active Publication Date: 2014-07-23
广东奇林电气股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Most of the existing pressure sensors use the principle of electromagnetic induction to realize pressure detection. During the use of the sensor, due to the electromagnetic interference of the surrounding electromagnetic equipment or the machine in the application, the electromagnetic signal of the sensor will fail, resulting in The problem of inaccurate pressure detection

Method used

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Embodiment Construction

[0013] refer to figure 1 , figure 2 , image 3 , the light-sensitive pressure sensor of the present invention uses the infrared penetration method to cooperate with the attenuation color chip to detect the external pressure in segments under the pressure of the spring structure, thereby obtaining an AD pressure value, which is then converted into a pressure by looking up the table through software A conversion system for values. Its circuit structure includes power supply stabilization circuit 1, infrared tube acquisition circuit 2, operational amplifier adjustment circuit 3, signal follow output circuit 4 and current mutation suppression circuit 5, power supply stabilization circuit 1 is connected with current mutation suppression circuit 5 and infrared tube collection respectively The circuit 2 is connected to each other, and the recovery signal obtained by the infrared tube collection circuit 2 is processed by the operational amplification regulation circuit 3 and then o...

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Abstract

The invention discloses a light pressure sensor. A circuit structure of the sensor comprises a power supply stabilizing circuit, an infrared geminate transistor acquisition circuit, an operating, amplifying and regulating circuit, a signal follow output circuit and a current abrupt change suppressing circuit, wherein the power supply stabilizing circuit is respectively connected with the current abrupt change suppressing circuit and the infrared geminate transistor acquisition circuit; and a recovery signal acquired by the infrared geminate transistor acquisition circuit is processed by the operating, amplifying and regulating circuit and output by the signal follow output circuit in a pressure analog signal mode. The sensor is high in interference resistance, can realize zero interference, accurately detects pressure, is driven by low voltage and is suitable for the field of detection of multiple kinds of pressure.

Description

technical field [0001] The invention relates to a pressure sensing device, in particular to a light-sensitive pressure sensor. Background technique [0002] Most of the existing pressure sensors use the principle of electromagnetic induction to realize pressure detection. During the use of the sensor, due to the electromagnetic interference of the surrounding electromagnetic equipment or the machine in the application, the electromagnetic signal of the sensor will fail, resulting in The problem of inaccurate pressure detection. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a light-sensitive pressure sensor with strong anti-interference ability. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] The light-sensitive pressure sensor has a circuit structure including a power supply stabilization circuit, an infrared pair tu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/24
Inventor 刘剑飚
Owner 广东奇林电气股份有限公司
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