Waterproof and moistureproof air pressure balancing device for micro-pressure sensor
A micro-pressure sensor, air pressure balance technology, applied in measuring devices, instruments, measuring fluid pressure, etc., can solve the problem of long-term reliable use of micro-pressure sensors, and achieve simple and fast on-site installation and adjustment, high waterproof sealing, The effect of maintaining pressure balance
Inactive Publication Date: 2020-04-07
NANJING NARI WATER RESOURCES & HYDROPOWER TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a waterproof and moisture-proof air pressure balance device for micro-pressure sensors, so as to solve the problem that the pressure sensors in the prior art cannot balance the air pressure and ventilation between the internal cavity of the instrument and the outside world, and can be used reliably for a long time and can maintain the internal pressure of the micro-pressure sensor. Reliable flaws in watertight sealing
Method used
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[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0022] like Figure 1-Figure 2 As shown, a waterproof and moisture-proof air pressure balance device for a micro-pressure sensor is disclosed, including 4-1 silicone hose, 4-2 software connector, 4-3 plexiglass tube, 4-4 color-changing desiccant, 4-5 pressure Balance parts, 4-6 breathable valve, 4-7 plugging end cap, 4-8 waterproof breathable membrane, the two ends of described plexiglass tube 4-3 are provided with plugging end cap 4-7, and described plexiglass tube One end of 4-3 is provided with waterproof ventilating joint 4-10, and the other end is provided with ventilating valve 4-6, and one end of described waterproof ventilating joint 4-10 is connected with blocking end cap 4-7, and waterproof ventilating joint 4-10 is connected It is conn...
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The invention discloses a waterproof and moistureproof air pressure balancing device for a micro-pressure sensor. The device comprises an organic glass tube, blocking end covers are arranged at the two ends of the organic glass tube; a waterproof breathable connector is arranged at one end of the organic glass tube, a breathable valve is arranged at the other end of the organic glass tube, one endof the waterproof breathable connector is connected with the plugging end cover, the other end of the waterproof breathable connector is connected with a sensor ventilation cable, a drying cavity isformed in the end, close to the software connector, in the organic glass tube, and a pressure balance component is arranged at the end close to the breathable valve. The pressure compensation device is simple and rapid to install and adjust, high in pressure compensation precision, capable of being used under various different working conditions, high in environment adaptability and capable of being periodically maintained on site by unattended personnel in the long-term use process, and the unattended purpose is truly achieved.
Description
technical field [0001] The invention relates to a waterproof and moisture-proof air pressure balance device for a micro-pressure sensor, belonging to the technical field of micro-pressure sensors. Background technique [0002] Micro-pressure sensors are often used in occasions that have high requirements for water level or pressure measurement accuracy, such as rivers, reservoir areas, trenches, and pipelines. Such as vibrating wire micro pressure gauge, vibrating wire precision water level gauge, ceramic capacitor pressure sensor, piezoresistive water level gauge, etc. In order to ensure that the instrument body has a high waterproof sealing ability, this type of sensor needs to design an independent sealed shell to encapsulate the sensitive parts inside, so as to ensure that the sensor can operate reliably for a long time when it is placed in water or under a certain water-resistant pressure environment. However, for micro-pressure sensors, the pressure surface is often m...
Claims
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IPC IPC(8): G01L19/00G01L19/06G01L11/00
CPCG01L11/006G01L19/0007G01L19/0654
Inventor 李杰夏明程鸿雨吴建刘宁陈俊生
Owner NANJING NARI WATER RESOURCES & HYDROPOWER TECH CO LTD