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Load sensor signal transmitting device

A load sensor and signal transmission technology, applied in the field of sensors, can solve the problems of voltage signal noise interference input impedance, signal receiver voltage drop, not infinite, etc., to eliminate noise interference, high open-loop gain, load The effect of small capacity

Inactive Publication Date: 2020-08-25
徐州电子技术研究所水电自动化工程处
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a load cell signal transmission device to solve the problem that the voltage signal proposed in the background art is easily disturbed by noise on the transmission line and because the input impedance of the signal receiver will not be infinite, so the signal receiver's The input current will cause a voltage drop due to the line resistance of the transmission line, resulting in the problem of signal loss

Method used

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] The invention provides a load cell signal transmission device, which can effectively eliminate the noise interference of the voltage signal on the transmission line and reduce signal loss;

[0016] see Figure 1-2 , including AC filtering circuit, zeroing circuit, differential voltage amplifier circuit and sampling circuit, the zeroing circuit is connected to the AC filtering circuit, the differential voltage amplification is connected to the AC filteri...

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Abstract

The invention discloses a load sensor signal transmitting device in the technical field of sensors. The load sensor signal transmitting device comprises an AC filter circuit, a zero setting circuit, adifferential voltage amplification circuit and a sampling circuit. The zero setting circuit is connected to the AC filter circuit. The differential voltage amplification circuit is connected to the AC filter circuit and the zero setting circuit. The sampling circuit is connected to the zero setting circuit and the differential voltage amplification circuit. The AC filter circuit comprises a resistor R0, an electromotive force E1, a diode D1, a capacitor C1, a three-terminal regulator U1 and a capacitor C2. One end of the resistor R0 is connected to a + 24V power supply, and one end of the diode D1 is connected with the other end of the resistor R0. According to the invention, the interference of noise on a voltage signal on a transmission line can be effectively eliminated, and the signalloss is reduced.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a load sensor signal transmission device. 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. 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, gas sensor, fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/45
CPCH03F3/45
Inventor 庄星渠慎超徐阳
Owner 徐州电子技术研究所水电自动化工程处
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