Description
The working principle of infrared photo-conductive sensor is based on the photo-conductive effect of semiconductor materials, converting the change of infrared radiation energy into the change of resistance. This type of sensor has strong absorption and response in the near and middle infrared (1.0~5.0um) spectral bands.
After integrating the semiconductor cooling chip TEC, it can realize stable control of the internal temperature of the sensor, reduce environmental interference and improve responsiveness; Refrigerated infrared photo-conductive sensor can be used in the field of low concentration infrared gas detection (13CO2, NH3, etc.) and spectral analysis filed.
Application
13CO2 breath analyzer;
Carbon emission gas detection;
Infrared spectrum analysis;
Features
High detection rate; Fast response; TO-8 package; Stable refrigeration; Customizable window
Specifications
| Item | Typical | Unit |
| Photosensitive area | 2*2 | mm |
| Response wavelength range | 1~5 | um |
| Peak wavelength | 3.8 | um |
| Response Time | 20 | us |
| Peak responsivity | 4*104 | V/W |
| Peak Normalized Detection Rate | 1*1010 | cm·Hz½/W |
| Dark resistance | 0.5~5 | MΩ |
| Operating temperature | -30~70 | ℃ |
Table 2: Technical indicators (TEC/NTC)
| Performance index | Typical | Unit | ||
| TEC | Refrigeration level | Level 2 | / | |
| Maximum voltage | Th=27℃ | Th=50℃ | V | |
| 6.1 | 6.1 | |||
| Maximum current | 1.4 | 1.4 | A | |
| NTC | Resistance | 10k±1% | Ω | |
| B-value constant | 3435±1% | K | ||
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
