High-precision air pressure controller applied to adjustment of initial position of bolt of water level sensor
A technology of water level sensor and air pressure controller, which is applied in the direction of electric fluid pressure control, fluid pressure control, control/regulation system, etc. It can solve the problems of air pressure instability and achieve the effect of improving production efficiency and reliable air pressure control
Active Publication Date: 2021-07-09
嘉兴南湖学院 +1
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[0004] Aiming at the deficiencies of the prior art, the present invention provides a high-precision air pressure controller applied to the initial position adjustment of the water level sensor bolts, and the purpose of the present invention is to solve the problem of unstable air pressure during the initial position adjustment of the existing water level sensor bolts
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[0057] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments.
[0058] In the description of the present invention, unless otherwise stated, the meaning of "multiple" is two or more; the term "upper", "lower", "left", "right", "within", "outside" , "Front end", "backend", "head", "tail", etc. The direction or position of the indication is based on the orientation or positional relationship shown in the drawings, is only for ease of describing the invention and simplified description, not Indicating or implying that the device or element must have a specific orientation, constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention. Moreover, the terms "first", "second", "third", etc. are only use...
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The invention discloses a high-precision air pressure controller applied to adjustment of the initial position of a bolt of a water level sensor, and relates to the technical field of air pressure controllers, in particular to the high-precision air pressure controller applied to adjustment of the initial position of the bolt of the water level sensor. The controller comprises an STM32F103 core board, an L298N driving module, a direct-current peristaltic air pump 1, a direct-current peristaltic air pump 2, ambient air, a closed air chamber, an interface circuit, a digital air pressure sensor, an electromagnetic valve, a water level sensor, a key switch, a relay 1, a mode key, a driver, a relay 2, a state indication LED1, a state indication LED2, a state indication LED3 and a power supply module, the input of the power supply module is 220V mains supply, and the power supply module has two output voltages which are 24V and 3.3 V respectively. Through feedforward control, mode distinguishing, execution of a Bang-Bang control algorithm or a switch switching fuzzy PI control algorithm, air pressure can be kept stable when the initial position of the bolt of the water level sensor is adjusted, reliable air pressure control is provided for adjustment of the initial position of the bolt of the water level sensor, and production efficiency is improved.
Description
Technical field [0001] The present invention relates to the technical field of air pressure controller, and is specifically a high precision air pressure controller applied to the initial position of the water level sensor bolt. Background technique [0002] The water level sensor currently widely used in the washing machine is constructed from a variable inductor and two capacitances of a reaction water level, and the electrical phase of the resonance circuit causes a change in the frequency of the resonance circuit to indicate the change in the frequency of the resonant circuit. The high and low, and the frequency value can be read by the microcontroller of the washing machine and control the amount of water. [0003] During the production of the water level sensor, it is necessary to determine the initial position of the connection magnetic core spring bolt, and generally, when controlling the air chamber air pressure in the water level sensor to a set value, adjust the bolt c...
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IPC IPC(8): G05D16/20
CPCG05D16/2026
Inventor 熊远生吴伟雄傅文珍刘春元高慧敏许聚武
Owner 嘉兴南湖学院