Design of Gas Flow Standard Device by the Master Meter Method Based on Synchronous Pulse Counting Method

This paper introduces the hardware, software composition and working principle of field service gas flow standard device by the master meter method. The synchronous pulse counting method is proposed and implemented, and the key points in software design are described in detail. It is proved that the field service gas flow standard device by the master meter method can be used for the verification of various types of gas flowmeter and high accuracy verification service.