Automatic gain processing device for metering signal of ultrasonic gas meter

• Main Authors: QI YUWANG, LIU JINLEI, LIANG LISHUI, YAO JINLONG
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: BASIC ELECTRONIC CIRCUITRY; CONTROL OF AMPLIFICATION; ELECTRICITY; MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The invention discloses an ultrasonic gas meter metering signal automatic gain processing device which is characterized in that a power supply interface is connected with a power management module, and the power management module is respectively connected with an input signal matching module, a signal automatic gain processing module and an output signal matching module; the signal input interface is connected with the input signal matching module, the input signal matching module is connected with the signal automatic gain processing module, the signal automatic gain processing module is connected with the output signal matching module, and the output signal matching module is respectively connected with the differential signal output interface and the single-ended signal output interface. The device is used for realizing filtering, buffering, amplitude automatic gain processing and differential signal conversion output of an input ultrasonic echo signal. According to the invention, the amplitude of the ultr