Blade damping optical fiber differential pressure sensor probe and its detection method
A differential pressure sensor and damping technology, applied in the field of sensor probes, can solve the problems that the differential pressure sensor cannot meet the requirements of differential pressure measurement, the practicability of the differential pressure sensor is not strong, and it cannot be popularized and used, and achieves progress in adaptability and interchangeability, Good adaptability and interchangeability, strong practicability
Inactive Publication Date: 2018-09-07
GUIZHOU UNIV
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[0003] The purpose of the present invention is to provide a blade damping optical fiber differential pressure sensor probe and its detection method to solve the problem that the existing differential pressure sensor is not practical, has large limitations or is still in the conceptual stage, and cannot be popularized and used. The more common resistive and capacitive differential pressure sensors also have their own shortcomings, which are not applicable in many occasions and cannot meet the actual requirements of differential pressure measurement.
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[0025] refer to Figure 1 to Figure 3 , this embodiment provides a vane damping optical fiber differential pressure sensor probe, including a housing 1, the housing 1 adopts a flat cylindrical structure, and the housing 1 has a cylindrical inner cavity. In the initial state, the rotating part 2 The center line of rotation and the center line of the inner cavity of the housing 1 are in the same plane as the partition plate 3, and the housing 1 is provided with a rotating part 2, and the rotation center of the rotating part 2 is parallel to the center line of the housing 1. It is a non-coaxial structure (relatively eccentric), and the opposite sides of the rotating part 2 are provided with partitions 3, and the partitions 3 can rotate relatively with the rotating part 2 in the housing 1, specifically: the rotating part 2 corresponds to the partition 3 is provided with a chute 21, and one end of the partition 3 is slidably set in the corresponding chute 21 (sliding and sealing be...
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The invention provides a blade damping optical fiber differential pressure sensor probe and a detection method thereof. A rotating part is arranged inside a shell, and partition boards are arranged at two opposite sides of the rotating part. The inner cavity of the shell is divided by the rotating part and the partition boards into two detection cavities, and the two detection cavities are correspondingly provided with detection fluid inlets. A damping spring is arranged at one side of one partition board, one end of the damping spring is fixed, and the other end of the damping spring is fixed to the partition board. A through hole is arranged along the rotating center of the rotating part, and a light shading sheet is fixedly arranged inside the through hole. An incident optical fiber is arranged at one side of the light shading sheet, a receiving optical fiber is arranged at the other side of the light shading sheet, and the receiving end face of the receiving optical fiber is divided into an optical fiber receiving part and a non-optical fiber receiving part. The invention aims to solve the problem that the actual differential pressure measurement requirements cannot be satisfied as the existing differential pressure sensor which is of poor practicality, has great limitations or is still in the concept stage cannot be widely used, while the common resistive or capacitive differential pressure sensor is not applicable to many occasions due to shortcomings. The invention belongs to the field of differential pressure detection.
Description
technical field [0001] The invention relates to a sensor probe and belongs to the technical field of optical fiber sensing. Background technique [0002] Differential pressure sensors are widely used in industry, mainly for equipment measurement, pressure difference of components or fluids at different positions, and are widely used in detection fields such as tail pressure difference, gas flow, liquid level, and clean room monitoring. Nowadays, differential pressure sensors using different principles have appeared, such as resistive, capacitive, inductive, throttle, magnetic liquid, MEMS, etc. Among them, resistive and capacitive are more common, and other types are not practical due to Strong, limited or still in the concept stage, and has not been promoted, but resistive and capacitive differential pressure sensors also have their own shortcomings, and cannot be well competent in many occasions. Based on this, the present invention proposes a novel optical fiber bundle d...
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IPC IPC(8): G01L13/00
CPCG01L13/00
Inventor 胡浩钟丽琼杨明
Owner GUIZHOU UNIV