Trains are a key mode of transport in most developed countries around the world.
By Alexander Chilton
22 Oct 2014
An infrared sensor is an electronic instrument that is used to sense certain characteristics of its surroundings by either emitting and/or detecting infrared radiation.
By Alexander Chilton
15 Oct 2014
A barometer is a device used to measure air pressure based on the weight of the air column.
A silicon bandgap temperature sensor is a type of thermometer or temperature detector commonly employed in electronic devices.
Oxidation reduction, or redox reactions, involves the transfer of an electron from a donor to an acceptor. The donor loses an electron to change from the reduced to oxidized form and the acceptor gains an electron to change from reduced to oxidized form.
A scintillation counter is a device used for the detection and measurement of ionizing radiation.
A level sensor is a device for determining the level or amount of fluids, liquids or other substances that flow in an open or closed system. There are two types of level measurements, namely, continuous and point level measurements.
A nuclear density gauge is a testing device used to measure the density of a test material with the help of nuclear radiation.
Light emitting diodes (LEDs) are semiconductor devices which provide visible or infrared light when an electric current is applied. The light emitted by the LED is monochromatic in nature, i.e., occurs at single wavelength.
By Stuart Milne
22 Sep 2014
A position sensor is any device used for measuring the distance traveled by the body starting from its reference position. It measures linear or angular position in reference to a fixed point or arbitrary reference.