Excelitas technologies introduces a new pYS 3228 / 3428 dual channel pyroelectric detector for gas monitoring

Special infrared filters are now available to detect refrigerant Freon R32 Excelitas technologies, the global leader in innovative customized optoelectronic solutions ® Corp. recently launched a new dual channel pyroelectric detector pys3228 / 3428 for gas monitoring, which can be used to detect the presence of refrigerant Freon R32. Excelita’s pys3228 / 3428 detector includes […]

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Innovative two-color light smoke detection scheme to solve the safety defects perplexing fire false alarm

Recently, the guidance on accelerating the development of digital families and improving the living quality was issued, which clearly pointed out the requirements for building intercom, intrusion alarm, automatic fire alarm and other basic intelligent fire-fighting products for newly-built fully decorated houses. The Ministry of housing and urban rural development also announced a relevant notice […]

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How to use reflection method for pulse plethysmograph (PPG) waveform

Optical sensors represent the most common type of biosensor. This two-part series provides a technical background on how optical technology can be used in bioanalytical applications. This paper summarizes how to use reflection method to pulse plethysmograph (PPG) waveform, and describes the physical and physiological principles in the work. The second part introduces the common […]

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Maxim launched maxm86146 dual photodetector optical sensor solution, easy to design Wearable health products

Maxm86146 integrates advanced algorithms, effectively saves space and shortens the development cycle by 6 months Maxim integrated products, Inc (NASDAQ: mxim) announced the maxm86146 optical sensor solution with built-in dual photoelectric detector, which is the thinnest solution in the industry to help designers design Wearable health and fitness products quickly and easily. The module includes […]

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Photovoltaic photoelectric detection circuit diagram

Circuit diagram of photovoltaic photoelectric detection (1) Basic structure of photoelectric detection circuit Generally, the signals received by photodetectors are very weak, and the output signals of photodetectors are often buried in the noise. Therefore, in order to process such weak signals, it is necessary to carry out pre-processing to filter out most of the […]

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The skill and method of measuring temperature accurately with infrared thermometer

The infrared thermometer consists of optical system, photoelectric detector, signal amplifier and signal processing. Display output and other components. The optical system gathers the infrared radiation energy of the target in its field of view. The infrared energy is focused on the photodetector and transformed into the corresponding electrical signal, which is then converted into […]

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