With the continuous improvement of social living standards, people begin to pay more and more attention to personal health and safety, and spend and invest more and more. The massage chair is a kind of household health care product that is driven by electricity and uses mechanical rolling or mechanical squeezing force for automatic massage. Through it, it can promote human blood circulation, help improve pain, relieve fatigue and play the role of physical exercise. Especially for most modern people with a fast pace of life, they do not have much time and energy to relax. At this time, the massage chair has become an economical and convenient alternative.
The mechanical compression force that simulates human finger massage in the massage chair is generated when the air pump is inflated into the airbag, and the process of circulating inflation is monitored by the pressure sensor. Generally, the pressure of the air pump is between 30Kpa and 70Kpa, and the length of the inflation duration determines the size of the airbag pressure. The longer the time, the greater the pressure of the airbag. The greater the pressure of the airbag, the greater the force of massage. Therefore, the size of the force during massage can be controlled by the measurement of the airbag pressure by the pressure sensor to control the length of the inflation time.
The Sencoch GZP series pressure sensor adopts silicon piezoresistive technology, and at the same time, it adopts a special integrated circuit for calibration and data processing, so that the product has high accuracy and stability. Temperature compensation is carried out in the range of -20℃ to 85℃. This series of sensors is powered by a single power supply of 3.3Vdc or 5.0Vdc, which can be used for absolute pressure and gauge pressure measurement of non-corrosive, non-ionic gases (such as air and other dry gases).
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