Device air-tightness monitoring system based on low-noise amplifier

Abstract

The invention discloses a device air-tightness monitoring system based on a low-noise amplifier, comprising a pressure sensor, a flow sensor, a microcontroller module, a display module, a stepper motor, a compaction device, an electromagnetic valve, a gas-filled switch, a device monitoring module, and a power module. The pressure sensor, the flow sensor, the device monitoring module and the display module are connected to corresponding ports of the microcontroller module. The microcontroller module is connected with the compaction device through the stepper motor. The microcontroller module is connected with the gas-filled switch through the electromagnetic valve. The device monitoring module is connected with the compaction device and the gas-filled switch. The power module is connected with the pressure sensor, the flow sensor, the microcontroller module, the display module, the stepper motor, the electromagnetic valve and the device monitoring module.

Description

technical field [0001] The invention relates to an airtightness detection and control system, in particular to a device airtightness monitoring system based on a low noise amplifier, which belongs to the field of airtightness detection and control. Background technique [0002] With the rapid development of medical device technology, the requirements for airtightness of sealing parts of medical devices are continuously increasing, and the detection of airtightness is also gradually required to be intelligent. The traditional "wet method" air tightness detection has defects, such as low precision, long detection time, and the inability to realize automation; the direct pressure method has low precision when measuring high pressure or the volume of the tested part is large, and has strict requirements on the external temperature , not suitable for the factory environment; the differential pressure method has a complex structure, cumbersome operation, and is expensive; and the ...

AI Technical Summary

Problems solved by technology

The traditional "wet method" air tightness detection has defects, such as low precision, long detection time, and the inability to realize automation; the direct pressure method has low precision when measuring high pressure or the volume of the tested part is large, and has strict requirements on the external temperature , not suitable for the factory environment; the differential pressure method has complex structure, cumbersome operation, and high price; and the nitrogen detection method is too expensive

In automatic assembly equipment, it is often used to test the specific size of the product and its own air tightness. Due to the poor measurement accuracy caused by manual work, the measurement is difficult and the work efficiency is low. At present, there is no one with high measurement accuracy. Air tightness testing equipment with simple operation and high working efficiency