1) " Voltage" -- As it applies to Voltage Detector In the physical sciences, potential difference is the difference in potential between two points in a conservative vector field. In engineering, it issometimes described as the across variable, where flux is the through variable. Contents 1 Production 1.1 Electrical definitions 1.2 Instruments 2 History 3 SI electricity units 4 Analogy with pressure 5 See also Production The product of the flux and the potential difference is the power, which is the rateof change of the conserved quantity, e.g., energy. In fluid systems the potentialdifference is the difference in pressure. In thermal systems the potentialdifference is the difference in temperature. In mechanics, the potentialdifference is the difference in gravitational potential between two points. In electrical engineering the potential difference isthe Voltege , i.e. the difference between the initial and final points of an electrostatic potential. Electrical definitions A potential difference between two points gives rise to a "force" called an electromotive force or emf thattends to push electrons or other charge-carriers from one point to the other. Apotential difference is generated between the ends of an electrical conductor that moves perpendicular to a magnetic field. Between two points in an electrical circuit the potential difference is equal to the difference in their electrical potentials. The potential difference is defined as the amount of work per charge needed to move electric charge from the second point to the first, or equivalently,the amount of work that unit charge flowing from the first point to the second can perform. In the SI system of units, potential difference, electrical potential and electromotive force are measured in volts, leading to the commonly used term voltage and the symbol V. Named after Alessandro Volta, one volt i...
2) " Detector" -- As it applies to Voltage Detector In telecommunication, the term detector has thefollowing meanings: - A device that is responsive to the presence or absence of a stimulus.
- In an AM radio receiver, a circuit ordevice that recovers the signal of interest from the modulated wave.
- In FM reception, a circuit called a discriminator is used to convert frequency variations toamplitude variations.
- In an optical communications receiver, a device that converts thereceived optical signal to another form.
Note: Currently, this conversion is from optical to electrical power ; however, optical-to-optical techniques are under development. Source: from Federal Standard 1037C In astronomy, the detecting devices generally used is charge-coupled devices (CCD), although, before the 1990s, photographic plates werethe most common. In experimental particle physics, a particle Detecor is a device used to track and identify elementaryparticles. Detetor ...
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