Probe of double-probe differential pressure flow sensor and detecting method of probe

Abstract

The invention provides a probe of a double-probe differential pressure flow sensor and a detecting method of the probe and belongs to the field of flow detection. The probe comprises two piston cylinders and a detecting box. One end of each piston cylinder is provided with an end cover, the other end of each piston cylinder is communicated with the detecting box through a fluid channel, a piston is slidably arranged in each piston cylinder, a spring is arranged between the each piston and the corresponding end cover along the slide direction of the piston, each end cover is provided with a probe mounting hole, an optical fiber detecting end is arranged in each probe mounting hole, each probe mounting hole is vertical to the end face of the corresponding piston, and a reflecting part is fixed on one side, directly facing each probe mounting hole, of the corresponding piston. The gas supply direction of a gas source points at a position between the two fluid channels. The fluid channels and the gas source are respectively arranged on two opposite sides of the internal circulation path of the detecting box. By the probe, the problems that an existing flow sensor probe often adopts a traditional power measuring manner, is low in measuring precision and high in energy consumption and is not well applicable to many occasions are solved.

Description

technical field [0001] The invention relates to a flow sensor probe, which belongs to the technical field of flow sensor monitoring. Background technique [0002] In modern industrial production, especially in the automated production process, various sensors are often used to monitor and control various parameters in the production process, so that the equipment can work in a normal or optimal state, and the product can achieve the best quality. Sensors have already penetrated into a wide range of fields such as industrial production, space development, ocean exploration, environmental protection, resource investigation, medical diagnosis, bioengineering, and even cultural relic protection. The present invention is one of many types of sensors - flow sensors. With the development of sensor technology, a variety of flow sensors have appeared, the most commonly used are vane type, vortex type, Karman scroll type, hot wire type and so on. However, sensors such as vane-type, ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a dual-probe differential pressure flow sensor probe and its detection method to solve the problems of traditional dynamic measurement methods used in existing flow sensors, which have the limitations of low measurement accuracy and large energy consumption. problems that don't work well

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