1 Application
The outlet flow sensor can measure the change of the relative flow of mud in the mud pit of the oil drilling outlet, and has the advantages of simple structure, compactness and good reliability.
2 Working principle
Using the fluid fluid continuity principle and the Bob's effort equation, as well as the analysis of the baffle force, the flow relationship between the flow and the sensor baffle can be obtained. The flow sensor cylinder shroud has a proximity sensor and a front end curved test board. The change in distance between the two linearly reflects the angular displacement of the baffle to measure the relative change in fluid flow. The current transmitting unit is added to the proximity sensor in the current type flow sensor to make the output a 4-20 MA current amount.
This product uses a proximity sensor transmitter to replace the traditional potentiometer sensor, and replaces the contact measurement with non-contact measurement, which overcomes the damage caused by the long-term repeated back and forth sliding wear of the potentiometer sensor, thereby greatly improving the accuracy of the flow sensor. And service life.
3 Performance
1, working temperature: -20---+80 °C
2, the baffle angle: 0-45 ° C
3. Current output for current sensor: 4-20Ma
4, current sensor power supply voltage: 10-24VDC
5, measurement range: change the weight of the weight on the baffle to change the range, no absolute calibration
