Voltage frequency converter of painting workshop gas concentration detection system

Abstract

The invention discloses a voltage frequency converter of a painting workshop gas concentration detection system. The voltage frequency converter comprises a signal input line, a first resistor, a second resistor, a fourth resistor, a first capacitor, a second capacitor, a transient voltage suppressor diode, a voltage frequency converter body and a signal output line. The two ends of the first resistor are connected with the signal input line and a seventh pin of the voltage frequency converter body respectively, one end of the first capacitor is connected with a line between the first resistorand the seventh pin of the voltage frequency converter body, and the other end of the first capacitor is grounded. One end of the transient voltage suppressor diode is connected with the seventh pinof the voltage frequency converter body, and the other end of the transient voltage suppressor diode is grounded. One end of a parallel branch formed by connecting the second resistor with the secondcapacitor in parallel is connected with a first pin of the voltage frequency converter body, and the other end of the parallel branch is grounded. The two ends of the fourth resistor are connected with a third pin of the voltage frequency converter body and the signal output line respectively. When the voltage frequency converter is applied, by achieving analog-digital conversion of a detection signal of a sensor, the conversion precision obtained when the detection signal is converted can be guaranteed.

Description

technical field [0001] The invention relates to shoe processing technology, in particular to a voltage-frequency converter for a gas concentration detection system in a paint spraying workshop. Background technique [0002] With the development of society and the improvement of people's living standards, people pay more and more attention to the working environment. In the processing and production of shoes, the environment of the paint shop is poor, and people have also adopted a series of optimization measures to improve the construction environment of the paint shop. In order to facilitate the detection of gas concentration in the painting workshop, a gas concentration detection system has been designed, which includes a sensor, a DC regulated power supply, an analog-to-digital conversion circuit and a digital display circuit. When the gas concentration detection system is applied, it is powered by a DC regulated power supply Powering the entire system, the sensor conver...

AI Technical Summary

Problems solved by technology

The analog-to-digital conversion circuit in the existing gas concentration detection system is directly implemented by an analog-to-digital converter, and its application accuracy is low, which will affect the accuracy of detection

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