Infrared temperature sensor PYROSENS

arraynon-contact

The pyroelectric linear array includes a lithium tantalate chip with 128, 256 or 510 elements. The signals produced by the elements are processed in a CMOS circuit. Signal processing is carried out by the analogue circuitry, including an adapted low-noise preamplifier for each pixel, a multiplexer and an output amplifier. The pyroelectric chip and CMOS readout circuit are located on a thick film substrate, all mounted inside a hermetic metal housing. The incident radiation passes through a window or filter, transparent to infrared wavelengths. Lithium tantalate pyroelectric arrays with high longterm stability 128, 256 or 510 elements with 100 µm, 50 µm or 25 µm pitch respectively Integrated CMOS multiplexer and temperature sensor Coated Ge or Si filters Many types with ion beam milled thin sensor elements for high signal-to-noise-ratio Option: metal absorbing layer for high and spectral uniform absorption Option: ion beam etched trenches between the sensor elements for excellent signal-to-noise-ratio at low modulation frequencies (e.g. 10 Hz) Evaluation kit The evaluation kit allows easy operation of the PYROSENS arrays. It consists of a small circuit board with complete electronics and software by which the electronics is controlled via USB connection from a Windows PC. The power can be provided by the USB port or a separate power supply. For synchronisation with further external components, such as for radiation modulation, a trigger pulse is provided. A DLL interface for the integration of the evaluation kit in custom software solutions and common laboratory software is available.