• The Digital Detector for Easy System Integration

Gas Detection

The Digital Detector for Easy System Integration

Nov 09 2021

Go Digital: Reaching the Goal More Quickly with Less Effort

InfraTec GmbH Infrarotsensorik und Messtechnik, an owner-managed Dresden-based company, has over 30 years of experience in the field of infrared technology. Customers worldwide benefit from a wide range of high-quality, innovative products and services in this field.

We are introducing: our digital detector for easy system integration with variable signal processing and improved electromagnetic compatibility (EMC). Like all detectors from InfraTec, it is based on single-crystal lithium tantalate (LiTaO3) and is used in gas analysis and flame detection. In contrast to other materials, LiTaO3 offers high sensitivity and a good signal-to-noise ratio without additional cooling or temperature stabilisation.

The digital detector is ideal for simple system integration in gas analysis and flame detection. By using the digital detector, the user receives a digital measurement signal that can be read out and immediately processed.

For high-precision measurement, especially in gas analysis, synchronisation of the emitter and detector clock is necessary. For the digital pyroelectric detectors, a clock input (pin) is available for this purpose, which is used to specify the system clock or the exact sample time. This allows a time signal with a highly precise sampling rate to be generated. Another special feature compared to analogue technology of our digital detector is the “Fast Recovery after Saturation”. This function detects overdriving due to a faulty operating condition – for example, due to extreme temperature fluctuations or mechanical influences – and automatically resets the analogue front-end.

The digital detector converts the analogue signal, which can be filtered and amplified in several stages, directly into a digital signal with a 16-bit resolution. The entire signal processing is carried out by an ASIC (Application- Specific Integrated Circuit), whereby the analogue front-end acts like a classic transimpedance amplifier. Thus, users receive a digital measurement signal that can be read out via an I²C interface and immediately processed.

"Made in Germany" – from standard to special detectors

The modular design of the InfraTec detectors as well as the large selection of different standard filters offer a wide range of application possibilities and thus room for your individual specifications. Our product range comprises a total of five different product groups with approximately 50 standard detectors, ranging from single-channel to eight-channel detectors. Each infrared detector is tested for functionality by our quality department before delivery. The individual measurement data for each detector is made available in our download portal. Our customers can retrieve this data via the assigned serial number and thus save the effort of an incoming goods inspection. At the same time, the requirements for traceability are fulfilled.

To meet customer requirements in the best possible way, InfraTec also invests in internal research and development of new sensor technologies. Our in-house developed PYROMID® multi-channel detectors, for example, combine high technology in the smallest of spaces with their compact design.


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