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MP-2 датащи(PDF) 4 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.

номер детали MP-2
подробное описание детали  Smoke Gas Sensor
PDF  6 Pages
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производитель  WINSEN [Zhengzhou Winsen Electronics Technology Co., Ltd.]
домашняя страница  https://www.winsen-sensor.com/
Logo WINSEN - Zhengzhou Winsen Electronics Technology Co., Ltd.

MP-2 датащи(HTML) 4 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.

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Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Tel: 86-371-67169097
Fax: 86-371-60932988
Email: sales@winsensor.com
Basic circuit
Fig2. Test circuit
This circuit shows the basic measuring circuit of sensor. Two voltage should be applied to this
sensor, heating voltage (VH) and test voltage (Vc). VH is used for supplying a certain temperature
which can be DC or AC. VRL the voltage on the load resistance (RL) which connects to the sensor
in series. Vc is supply the test voltage for RL and it must be DC.
Characterization
Fig3.Typical Sensitivity Curve
The ordinate is resistance ratio of the sensor (Rs/R0), the abscissa is
concentration of gases. Rs means resistance in target gas, R0 means resistance of
sensor in clean air. All tests are finished under standard test conditions.
Fig4.Typical temperature/humidity characteristics
The ordinate is resistance ratio of the sensor (Rs/Rso).Rs means resistance
of sensor in 2000ppm C3H8 gas under different tem. and humidity. Rso
means resistance of the sensor in 2000ppm C3H8 gas under 20℃/65%RH.
Air
C3H8
CH4
Smoke
Fig5.Sensing Curve
It shows VRL value when the sensor in C3H8 gas with different concentration.
RL=20kΩ, All tests are finished under standard test conditions.
Fig6.Response and Recovery
It shows the VRL changes when the sensor is put in target
gas (2000ppm C3H8) and then is take from it to clean air.



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