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Capacitive sensor model circuit

A capacitive sensor and circuit technology, applied in instruments and other directions, can solve problems such as the inability to truly reflect the actual detection data and distortion of capacitive sensors, and achieve the effect of shortening the research and development cycle, simple operation, and simplifying the design of the circuit.

Active Publication Date: 2014-02-12
JIAXING NAJIE MICROELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the traditional differential capacitive sensor model circuit to design the circuit, it cannot truly reflect the actual detection data of the capacitive sensor
In some systems such as closed-loop control, it is easy to cause distortion

Method used

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Embodiment Construction

[0022]Because the traditional capacitive sensor model circuit design is too simple, many factors that affect the detection value of the capacitive sensor during the detection process are ignored, and it is easy to cause errors when using the capacitive sensor model circuit design circuit, which makes the gap between research and development and actual products The difference between them is large. The capacitive sensor model circuit of the present invention fully considers various influencing factors in the actual detection environment, makes the detection value closest to the detection situation in the real environment, and can provide real and reliable data support for engineers' research and development.

[0023] Such as figure 1 As shown, a capacitive sensor model circuit includes an analog plate circuit 1, and the input end of the analog plate circuit 1 is connected with an analog input circuit for generating and sending sensor package electrical parameter signals and sen...

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Abstract

The invention discloses a capacitive sensor model circuit. The capacitive sensor model circuit comprises a simulation plate circuit, wherein the input end of the simulation plate circuit is connected a simulation input circuit, the simulation input circuit is used for generating and sending sensor packaging electrical parameter signals and sensor plate influencing parameter signals, the output end of the simulation plate circuit is connected with a simulation output circuit, and the simulation output circuit is used for receiving and outputting the sensor packaging electrical parameter signals and the sensor plate influencing parameter signals. According to the capacitive sensor model circuit, factors which may influence test data in the detection process of a capacitive sensor are fully taken into consideration, the effect of the capacitive sensor model circuit is similar to the effect of the capacitive sensor which is actually applied, and the real and reliable data support is provided for research and development of the capacitive sensor.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a capacitive sensor model circuit. Background technique [0002] The sensor model circuit is used to simulate the actual detection situation of the sensor during detection. The sensor model circuit can be used to replace the actual sensor when the engineer is designing the circuit, which avoids the trouble of the engineer needing to collect signals on the spot and shortens the development cycle. In addition, the sensor model circuit can truly simulate the actual detection data, which ensures the accuracy of the design. [0003] The circuit structure of the traditional differential capacitive sensor model is too simple, and the electrical parameters due to the plate structure, material and packaging are not considered. When using the traditional differential capacitive sensor model circuit to design the circuit, it cannot truly reflect the actual detection data of the capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
Inventor 李荣宽薛晓军周骏
Owner JIAXING NAJIE MICROELECTRONICS TECH
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