Environment-friendly resin coated sand production waste gas detection device

• Main Authors: HUANG SHUAIFENG, ZHAO XIANGCHAO
• Format: Patent
• Language: Chinese; English
• Published: 26.06.2020
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses an environment-friendly resin precoated sand production waste gas detection device. Including a gas sensor, the gas sensor is used for detecting the characteristics of waste gas exhausted in the resin precoated sand production core-making curing process. A detection signal is sent to the dual-channel rapid adjustment circuit and the phase adjustment circuit for processing and then sent to the microprocessor; the microprocessor performs A/D conversion and waveform analysis on the received detection signal and then sends a detection result to the display, and the dual-channel quick adjustment circuit adopts operational amplifiers U1 and U2 to form dual channels to quickly process the detection signal, so that the signal processing efficiency is effectively improved; the gas sensor is used for detecting the content of the waste gas, the circuit design is simple and ingenious, the detection efficiency is high, the accuracy is good, the use is convenient, and theprecise detection of the