Overview
SHRC82 sensor is a single-channel thermopile gas sensor, which contains a thermopile chip based on MEMS technology and connects hundreds of pairs of thermocouples in series, to convert the absorbed infrared radiation into a voltage signal. There is a narrow-band filter in the front of the sensor, and the sensor can be used for the detection of carbon dioxide concentration. The sensor NTC itself has temperature compensation, to improve the measurement accuracy.
Key Features
- TO-46 metal package
- High sensitivity
- Quick response, Good stability
- High transmittance of narrowband filter
- High precision NTC
Applications
- NDIR (CO2) Gas Detection equipment
- Indoor air quality detection and HVAC system control
- CO2 gas control in industrial workshop
- CO2 emission control of combustion furnace
- Human breath detection
- Interior air quality monitoring of automotive
Technical Specifications
| Parameter | Value | Unit | Remarks |
| Chip size | 1.35×1.35 | mm | / |
| Field of view | 95 | Degree | Above 50% |
| Filter center wavelength | 4.26 | um | |
| Thermopile resistor | 76±10 | KΩ | 25°C,1V |
| Noise voltage | 38 | nV/Hz1/2 | 25°C |
| Noise equivalent power | 0.23 | nW/Hz1/2 | 500K, 1Hz, 25°C |
| Response rate | 160±40 | V/W | 500K, 1Hz, 25°C |
| Temperature coefficient of resistance | 0.06 | %/°C | 25°C~75°C |
| Time constant | ≤13 | ms | |
| ChipDetection rate | 1.5 ×108 | cmHz1/2/W | 500K, 1Hz, 25°C |
| NTC resistance | 100 ±1% | KΩ | 25°C |
| NTC(β) | 3950 ± 1% | / | 25°C/50°C |
| Working temperature | -30 ~ 125°C |
