Principle of Flow Sensing
The Mass flow probe, proper to Golden Rules, ensures the excellent accuracy, strength and rdliabilty of the industrial flowmeter. In the Mass flow sensor, if it's composed of two sensing parts, one is a flow velocity sensor, and the other dis a temperature sensor that automatically corrects according to the change of gas or liquid temperature. The new element consists of two temperature platinum resistors in one chip. While high ohm resistor is used to measure the base temperature, the low ohm resistor issued as heater. by using the bridge circuit, each different resistance value of two elements and each different self-heat are produced. The self-heat depends on the supply voltage, mass flow, medium where the sensor is placed, the hight voltage increases the self-heat, and the higer flux increases the cooling. the mass flow can be measured as the voltage will increase with high flow rate.