Detector Responsivity Measurement System
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Photodetector is the sensor that could convert the optical radiation signal to the electrical signal, which is made from photoemission material. Most of the photodetectors have strong spectral selectivity in a certain Spectrum area. Therefore, for one photodetector, different wavelengths have different spectral responsivity. The spectral responsivity is an important parameter index for characterizing the photodetector performance. And for the photoelectric material researching, the effect of some characteristics of the material itself such as doping density, lattice imperfection, absorption coefficient and minority carrier diffusion length on the photoelectric response capacity and the quantum efficiency could be obtained by measuring and analyzing the spectral responsivity data. That is very important and helpful for choosing better material and processing improvement.
smoke detector
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A smoke detector is a device that senses smoke, typically as an indicator of fire. Commercial security devices issue a signal to a fire alarm control panel as part of a fire alarm system, while household smoke detectors, also known as smoke alarms, generally issue a local audible or visual alarm from the detector itself. Smoke can be detected either optically (photoelectric) or by physical process (ionization), detectors may use either, or both, methods. Sensitive alarms can be used to detect, and thus deter, smoking in areas where it is banned. Smoke detectors in large commercial, industrial, and residential buildings are usually powered by a central fire alarm system, which is powered by the building power with a battery backup. Domestic smoke detectors range from individual battery-powered units, to several interlinked mains-powered units with battery backup; with these interlinked units, if any unit detects smoke, all trigger even if household power has gone out.
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Smoke Detectors
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smoke detector
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Visonic Wireless Smoke Detector MCT-426 with in-built 85db siren. Absolutely no false alarms. Battery life of up to 5 years. Low battery and temper alarm transmission to the control panel. Visonic Wireless Smoke Detector MCT-426 Visonic Wireless Smoke Detector MCT-426 with the Visonic Wireless Burglar Alarm can be given as a solution for completely wireless addressable fire alarm system. In case fire is detected from any of the smoke detectors, it can send an SMS as well as call the predefined numbers with the exact location of the fire. In-built siren and flashing lights gives the visual indication of the location of fire. As no wiring is required, you can get a dependable solution for fire detection and also flexibility of increasing the number of smoke detectors at any point of time to scale the existing fire alarm system. Visonic Wireless Smoke Detector MCT-426 features: Superior detection sensitivity. Sound and transmitted alerts (smoke, tamper, low battery). Fully supervised. PowerCode™ technology with anti-collision transmission algorithm. 9 Volt alkaline battery. Simple ceiling-mount installation with no mess. Easy programming and user-friendly control. Attractive modern design suitable for residential applications. Compatible with PowerMax™ and other Visonic PowerCode™ wireless systems Available only in 433.9 MHz.
smoke detector system
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Our company is a highly acclaimed trader and service provider of Fire Alarm Smoke Detector System. We offer conventional heat detector and conventional smoke detector to our clients at reasonable prices. The offered range is admired for high durability, trouble free installation, sleek design and minimum maintenance.
Thermal Overload Detectors
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Thermal Overload Detectors, thermal switch, Automatic Thermal Protector
Smoke Detectors
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Smoke Detectors, Standalone Fingerprint Attendance Device, Fire Alarm System