資料來源:https://www.seeedstudio.com/Smart-Dust-Sensor---SM-PWM-01A-p-2085.html
Introduction:
This is a dust sensor that detects the dust particle concentration in air by using optical sensing method. An infrared light emitting diode (IR LED) and a photo-sensor are optically arranged in the device. The photo-sensor detects the reflected IR LED light by dust particles in air.
The SMART Dust Sensor can detect the small particles like cigarette smoke and it can distinguish small particles like smoke from large house dust by pulse pattern of signal output.
Features:
Compact size, light weight (about W59x H46x D18 mm, 23g)
PWM (pulse width modulation) output (Low pulse output)
Enable to distinguish small particle of cigarette smoke from large particle of house dust
Constant forced air convection flow by heater resister in dust sensor
Lead free and ROHS directive compliant
Minimum particle size can be detected over 1μm
(House dust size: avg 20μm, yellow dust size: avg 20um, cigarette dust size: avg 1μm)
Specification:
Dimensions | 90mm x 60mm x 19mm |
Weight | G.W 22g |
Battery | Exclude |
Smart Dust Sensor - SM-PWM-01A | 1 |
介紹:
這是通過使用光感測方法檢測空氣中的塵埃粒子濃度的灰塵傳感器。一個紅外發光二極管(IR LED)和一個光傳感器被光學佈置在設備中。光傳感器檢測反射的IR LED的光通過在空氣中的灰塵顆粒。
智能灰塵傳感器可以檢測到小顆粒如香煙煙霧和它可以通過信號輸出脈衝模式分辨的小顆粒像大房子的灰塵煙霧。
特徵:
規範: