Miniature Solid State NDIR CO2 Sensor An innovative High Speed, Real Time, Low Cost, Precision gas sensor using Al-In-Sb (Aluminium Indium Antimonde) NDIR LED technology. The base Mid IR solid state technology, has been incorporated into an advanced CO2 sensor that is suitable for high volume manufacture and is targeted at a number of Carbon Dioxide Sensor applications.
The Carbon Dioxide sensor is a fast, low power NDIR sensor. Leading edge LED technology allows the sensor to run at low power - less than 100mW running at full speed. No signal processing is required - just plug it in, power it up and read the data. (Other output options are available on request). We work with customers of all sizes - from low volume to high volume. We are always happy to discuss the right solution for specific applications.
Technology
We supply high performance Carbon Dioxide Sensors employing (Al-In-Sb) Indium Aluminium Antimonide technology on Gallium Arsenide wafer substrate. The sensor can be supplied either as a standard RS232 output or adapted to meet customer applications. The Carbon Dioxide measured output is temperature compensated and linearised. This new solid state NDIR technology employs an LED and a matched Photodiode manufactured to operate within a narrow optical band centred on 4.26ìm. LED's by nature are stable long life light emitters. The optical housing employs a simple but efficient optical path that collects the emitted radiation on the photodiode. Interfacing electronics can also be constructed to suit the customer's OEM specification.
Function
The LED and Photodiode pair is mounted on a bridge PCB over a lensed mirrored reflector. The resultant high efficiency optical path transfers the emitted narrow band light at 4.26ìm from the LED through the gas to an adjacent Photodiode. The inherently stable characteristics of this solid state technology, ensures reliable performance. For higher specification and low cost systems alike this technology delivers, speed, low power consumption and stability.
Features
High speed
Real time sensing
Low power consumption
High accuracy
High poison resistance & long term stability
Small 20mm x 45mm (driver electronics and sensor package)
