Intermediate pipe size ultrasonic flowmeter on basis of TDC-GP22 (Time-to-Digital Conversion GP22) chip and signal enhancement method thereof

Abstract

The invention relates to an intermediate pipe size ultrasonic flowmeter on the basis of a TDC-GP22 (Time-to-Digital Conversion GP22) chip and a signal enhancement method thereof and belongs to the field of instruments and apparatus. The intermediate pipe size ultrasonic flowmeter on the basis of the TDC-GP22 chip and the signal enhancement method thereof are characterized in that three-state gates are adopted to replace conventionally designed series resistors; in the sending process on an upstream and in the receiving process on a downstream, the three-state gate corresponding to a sending end is conducted and the three-state gate corresponding to a receiving end is cut off, so that a sending signal can be directly applied to a sending probe in an undamped manner and an amplitude and driving capacity of the sending signal are reinforced; due to cut-off of the corresponding three-state gate, an output of the receiving end has a high resistance, so that equivalent parallel resistance at both ends of a receiving probe are over 1megohm and an amplitude of a received signal is effectively improved. The intermediate pipe size ultrasonic flowmeter on the basis of the TDC-GP22 chip and the signal enhancement method thereof have the effects and the advantages that the signal obtained on the receiving probe of the DN80-DN200 intermediate pipe size ultrasonic flowmeter on the basis of the TDC-GP22 chip can be effectively reinforced; guarantee is provided for accuracy measurement of the GP22 chip on sound wave transmission time.

Description

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AI Technical Summary

Benefits of technology

This technology improves the accuracy at which an acoustic transducer measures fluid velocity by measuring its distance between two points along its length. It works well when there're only one point being measured or if certain conditions occur during measurement such as water hammering or other factors affect how fast they transmit signals through pipes.

Problems solved by technology

This patented describes an improved method called ultra sonography (US) that uses specialized equipment to calculate accurate liquid levels within a pipe system. However, current methods have limitations such as slow data transfer rates caused by fluid movement inside the pipe systems during measurements over longer periods.

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