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Recently, an instrument called "Life Cell Phone" appeared in Shenzhen. This instrument can measure pollutants in the air, including the PM2.5, PM10 and other indicators of concern, in the future, the public can use this instrument, anytime, anywhere to grasp the air quality.
This instrument called “Life Mobile Phone†is actually based on the function of the mobile phone, adding and modifying it. In addition to the size and function of an ordinary mobile phone, it also has an air suction port on the side of the body. When the user clicks the "dust" button on the screen, the suction device will start. After about 30 seconds, the user can read the current concentration of inhalable particles in the air from the screen of the mobile phone.
"There is a special sensor in the mobile phone body. When the air is sucked into the body, particles in the air will attach to the probe of the sensor. After data processing, the measurement result can be obtained," said Tan Weifeng, an engineer of the product service department.
It is understood that in addition to PM2.5, PM0.3, PM10 and other inhalable particles in the air, as well as electromagnetic radiation, formaldehyde, carbon dioxide and ultraviolet light, can be detected in this way.
"After these indicators are detected, they will be reflected through the data." Tan Weifeng said that in the interface of this mobile phone, there are also marked with green, yellow and red indicators to indicate the degree of air pollution, in which green indicates safety and yellow. Indicates pollution, red indicates serious pollution, users can also use this method to determine air pollution.
At present, the research and development of the mobile phone has been completed. It is expected that it will be launched in the Shenzhen market in early December of this year and the selling price will be about 12,600 yuan.
Wave spring has its unique advantage of saving space, which can replace coil Springs. Wave spring also decreases spring cavity by reducing spring operating height. It saves cost by reducing both component size and material used in production.
Wave spring works as a force loading device. It takes up gap and compensate for dimensional changes within the assembled device. Almost any range of forces can be achieved by gradually or suddenly changing loading force to preset working length. So a precise spring ratio can be realized when loading force and deflection change in proportion.
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