6 Aisite Instrument belongs to Aisite Instrument (Shanghai) Co., Ltd. and is one of the leading brands of ultrasonic flow meters and heat meters in China. It is particularly strong in the field of heating metering, focusing on ultrasonic measurement technology. 7. Beite Intelligent Instrument belongs to Suzhou Beite Intelligent Instrument Co., Ltd. and is an automation instrument manufacturer that integrates research and development, design, manufacturing, sales, and system services. In 2018, it joined the FCG Foundation and became a member of the global HART Foundation. 9. Tuosite belongs to Taian Tuosite Instrument Co., Ltd. It is a high-tech enterprise specializing in the production of flow meters and their supporting equipment, and has introduced advanced instrument manufacturing technology from Germany. 10. Krohne belongs to Jiangsu Ruiling Automation Instrument Co., Ltd. Its Krohne vortex flowmeter is a high-precision flow measurement device widely used in the industrial field.
Ultrasonic flowmeter calculates flow rate by measuring the time difference between the propagation of sound waves in the forward and backward directions, and the upstream and downstream differentiation is crucial for measurement accuracy.
. 1. The core differentiation standard for ultrasonic flow meters is mainly based on the relative relationship between the sound wave propagation path and the fluid direction: • Upstream sensor: installed in the direction of the fluid source, where the sound wave is first emitted • Downstream sensor: installed in the direction of the fluid direction, receiving the sound wave signal emitted upstream. 2 Specific differentiation method 2.1 Physical installation location identification - View sensor housing identification: Most products will indicate "UPTREAM" (upstream) or "DOWNTREAM" (downstream) - Cable connection identification: Upstream sensors are usually connected to interfaces marked with "UP" or "In" on the host. 2.2 Soun