Blade type high-frequency air pressure sensor detection device

Abstract

The invention discloses a blade type high-frequency air pressure sensor detection device. The device comprises a base, a guide pipe , a cylinder, a connecting rod and a gas input mechanism, one side of the guide pipe is connected with the gas input mechanism, a first hinge point and a second hinge point are arranged outside the other side of the guide pipe, one end of the cylinder is hinged to thesecond hinge point, the connecting rod comprises a blade connecting strut and a cylinder connecting strut, the end of the blade connecting supporting rod is hinged to the first hinge point, the bladeconnecting supporting rod is arc-shaped, arc-shaped blades are fixedly arranged on the arc-shaped inner side of the blade connecting supporting rod, the arc-shaped outer side of the blade connectingsupporting rod is fixedly connected with one end of the cylinder connecting supporting rod, and the other end of the cylinder is hinged to the other end of the cylinder connecting supporting rod. According to the invention, the measurement precision of the high-frequency air pressure sensor can be rapidly and accurately measured and calibrated, pressure gases with different frequencies can be generated, the detection of high-frequency air pressure sensors with different models can be satisfied, and the effective measurement range of the sensor can be verified.

Description

technical field [0001] The invention discloses a detection device, in particular to a high-frequency air pressure sensor detection device. Background technique [0002] High-frequency air pressure sensors are commonly used in high-speed operation and high-speed flight equipment. They are mainly used to measure the fluctuation frequency of gas pressure waves. According to the frequency value, the current working condition of the equipment, external load and vibration source can be judged. Due to the vibration of the equipment under the action of external excitation, for example, when the aircraft is flying at high speed, the wing will flutter under the excitation of some external eddy currents, which may directly cause damage to the aircraft. In addition, the machine tool will generate excitation vibration during high-speed rotating cutting, and the detection of such vibration is usually detected by the acceleration sensor. [0003] However, in some practical applications, s...

AI Technical Summary

Problems solved by technology

The high-frequency air pressure sensors used in such high-precision industries need to be tested for the accuracy of the air pressure frequency before leaving the factory. However, there are several common problems with the current detection equipment: expensive equipment, low efficiency and accuracy, waiting for The measurement frequency bandwidth is low, and it is difficult to realize a large number of rapid factory inspections

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