optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in...

power circulating in any electric circuit Microwave power meter measures power in a microwave signal Optical power meter measures power in an optical...

source and an optical power meter. The optical power margin is usually expressed in decibels (dB). At least several dB of optical power margin should...

optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical...

electrical cable Free-space optical communication Fusion splicing ISO/IEC 11801, structured cabling standard Optical power meter Optical time-domain reflectometer...

a 1 to 2 meter long reference fiber having physical and optical characteristics matching those of the fiber under test, measuring the power level at the...

mode Modal bandwidth Optical mesh network Optical power meter Passive optical network Return loss Subwavelength-diameter optical fiber Including infrared...

equate to being the best telescopes, and overall light gathering power of the optical system can be a poor measure of a telescope's performance. Space-based...

types of meters. A single installation point is simpler, requires less maintenance and is less prone to errors. Commercially available optical flowmeters...

A smart meter is an electronic device that records information—such as consumption of electric energy, voltage levels, current, and power factor—and communicates...

interactive material components, and optical components to optimize performance of a system's design. The spectral power distribution over the visible spectrum...

Microwave power meter Optical power meter Photographic plate Photomultiplier Phototube Radio telescope Spectrometer T-ray detectors (for lux meter, see the...

such items as, optical power meters, optical light sources, optical loss test sets, optical test and inspection kits, variable optical attenuators, inspection...

automated optical inspection, automated X-ray inspection (5DX), in-circuit testers, power supplies, tunable lasers, optical power meters, wavelength-meters, electro-optic...

“smart RTUs.” Meter A meter is an IED that is used to create accurate measurements of power-system current, voltage, and power values. Metering values such...

cell that produces more or less electric power when exposed to more or less light. The optical part of such a meter is a window in front of the photo cell's...

Power off testing includes analog signature analysis, ohmmeter, LCR Meter and optical inspection. This type of testing also lends itself well to troubleshooting...

cables, waveguides, or optical fibers, to the receiver. It is an equation giving the received power from the transmitter power, after the attenuation...

the site (since 2008) is a 2.4-meter fast-tracking optical telescope, and under construction is a ten-element optical interferometer. The MRO Interferometer...

An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual...

Commission. 2014-05-15. p. 220. - TC 76 - Optical radiation safety and laser equipment "e-ILV : Luminance meter". CIE. Archived from the original on 16...

An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier...

Telescope (GSMT), and the Very Large Optical Telescope (VLOT). These studies would eventually define the Thirty Meter Telescope. The TMT would have nine...

sensitivity of an ideal optical I&Q receiver is not improved by an ideal optical preamplifier. Noise Noise (electronic) Noise figure meter Noise level Thermal...

to the fibre being pulled and the output light is monitored by an optical power meter throughout the whole process. A good-quality SDF would transmit over...

linear polarization state; there is little or no cross-coupling of optical power between the two polarization modes. Such fiber is used in special applications...

electric main, through an optical port on the electric meter, by sensing the meter's actions, communicating with a smart meter, or via a direct connection...

a family of 35mm single-lens reflex cameras manufactured by the Asahi Optical Co. Ltd., later known as Pentax Corporation, between 1964 and 1976. All...

Telescope Giant Magellan Telescope List of optical telescopes List of largest optical reflecting telescopes Thirty Meter Telescope Gilmozzi, R.; et al. (1998)...

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word...