What brand of dust concentration sensor has high measurement accuracy?

As the weather vane list of science and technology industry, related sensing skills were mentioned many times in TR 10 (Top Ten Breakthrough Skills in the World) of MIT Science and Technology Lecture Hall last year and this year. "Sensing City" is one of the most representative breakthrough skills. DeepTech once said that integrating many smart sensors into the whole urban scene is like installing new digital limbs and senses. Everything is interconnected, and the perception is controllable. The operation of the city will be taken over by an incomparably powerful AI. Judging from the current situation, perceptual skills are still widely used in the landing of related products and urban planning.

Before the measurement, we need to know many factors such as the measurement object and the measurement environment. Generally speaking, even for the same object, there will be a variety of sensors to choose from, and using sensors with different principles will lead to changes in results. Therefore, it is necessary to carefully consider which principle sensor is more suitable. Before measurement, we need to consider in detail: the size of the measurement range; Requirements of the measured position on the sensor volume; The measurement method is touch or wrong touch; Signal extraction method, wired or true-false touch measurement; The source of the sensor is still imported from China. Can it be affordable or independently developed? After consideration, some functions of the sensor are selected.

CW-76S dust sensor (dust detector) is a high-tech product which integrates aerodynamics, digital signal processing and photoelectricity independently developed by Shenzhen Sainawei. It is mainly used to detect the dust mass concentration (PM value) in the atmosphere, and is suitable for construction sites, urban grid monitoring, mobile monitoring and other fields and occasions. It is the core module of air quality detection system.