Overview
The PMS7003 is a digital universal particle concentration sensor based on the principle of scattering. It can continuously collect and calculate the number of suspended particulates in different air volumes per unit volume, that is, the particle concentration distribution, and then convert it into mass concentration. Interface form output. The sensor can be embedded in a variety of suspended particles in the air associated with the concentration of instrumentation or environmental improvement equipment, to provide timely and accurate concentration data.
Working principle
The sensor uses the principle of scattering. It means that the light on the particles in the air and making the scattering, while collecting scattered light at a particular angle , resulting in scattered light intensity with time curve. Furthermore, the microprocessor uses the algorithm based on Mie (MIE) to obtain the equivalent particle size of the particles and the number of particles with different particle diameters per unit volume.
Features
The principle of scattering to achieve accurate measurement
Zero error alarm rate
Real-time response and support for continuous acquisition
Minimal resolution particle size 0.3um
The new patent structure, six full range of shielding, anti-jamming performance stronger
Inlet direction is optional, the use of a wide range of users without the need for duct design
Ultra-thin design, only 12mm, for portable devices
Technical indicators
Note:
1) Particle concentration consistency data for the communication protocol in the data 2 (see Appendix A) to measure the environmental conditions of 20 degrees Celsius, humidity of 50%.
Output the result
The main output is the mass per unit volume of particles and the number of particles, of which the number of particles per unit volume of 0.1 liters, the mass concentration in units of micrograms / cubic meter
The output is divided into act