Smoke detectors are generally used in advanced alarm systems. Most of this professional devices use gas-detectors, ionization rooms or radioactive elements as sensors. In this circuit we are not using ...

While troubleshooting an optical positioning system, an engineer learns the importance of seeing. Several years ago I was doing the system and circuit design of agroupof R/W optical disk drives used ...

A 255 nm deep-UV-light-emitting diode (deep-UV-LED) is investigated as a novel light source for photometric detection in view of fundamental properties of UV-LEDs, in particular emission spectra and ...

Abstract: The possibility of using LED as optical light detector is argued. The operating principle of the LED apogee detector is discussed in detail. An analysis of the radiation of the sky and the ...

As LEDs continue to replace incandescent lamps worldwide, so the traditional role of tungsten filament lamps as photometric standard light sources comes into increasing question. A project at ...

Project Description The primary objective of this application is to simulate the operation of an LED Light Dip Detector. The application consists of two main components: the Server and the Client side ...

Abstract: Photomultiplier tubes (PMTs) can be stabilized with light emitting diodes (LEDs) used as reference light sources. The LED is supplied with short voltage pulses that produce well-defined ...

We spoke with Ibraam Mikhail, a postdoctoral research fellow (analytical chemistry) at the Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Australia, about his ...