MEMS Micro Acetone Gas Sensor
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Introduction
Acetone sensor is MEMS-technology based gas sensor with semiconductor nanomaterial as sensing material,
which can detect acetone of different concentrations in exhaled breath.Characteristic
The sensor has the characteristics of small size, low power consumption, high sensitivity, low cost, fast response, high stability, long lifetime, etc.Technical Parameters
Sensor Model
S1015
Sensor style
MEMS semiconductor sensor
Standard Package
Ceramic Package
Detected Gas
Acetone
Detection Range/ppm
0～500 ppm
Resolution/ppm
0.1ppm
Circuit Voltage
Circuit Voltage
VC
5V or 3.3v
Heating Voltage
VH+
1.8±0.1 V AC/DC
Load Resistance
RL
Adjustable (Proposed RL:30K)
Sensor Unit
Characteristics
Heating Resistance
RH
50±10 Ω(Room Temperature）
Heating Power
RH
≤ 30 mW
Sensor Resistance
R0
10 ～ 1000 KΩ(in air)
Sensitivity
S
R0 (in air)/Rs (in 1 ppm C2H6O) ≥ 1.5
Slope
a
≤ 0.5(R 3 ppm/R 1ppm C2H6O）
Standard Test
Conditions
Temperature Humidity
20±2 ℃；55±5% RH
Standard Test
VCC :5V or 3.3v VH :3.3V±0.1 V
Preheating time
3-5 min
Response Time（T90）
<30 s
Recovery Time（T10）
<60 s
Expected Lifetime
≥5 Years
Pin Assignment & Reference Circuit
Characteristic figures
Figure4: The sensitivity curve of sensors
Figure5: The response curve of the sensor
Figure6: The sensitivity of the sensor versus temperature
Figure7: Stability test of sensors
