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optical measuring device

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  • Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

  • Optical power meter — in use An 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 fiber optic systems. Other general purpose light power measuring devices are usually… …   Wikipedia

  • Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …   Wikipedia

  • Optical dilatometer — An optical dilatometer is a non contact device able to measure thermal expansions or sintering kinetics of any kind of materials, unlike traditional push rod dilatometer, it can push up to the dilatometric softening of the specimen. It is a… …   Wikipedia

  • Optical instrument — An optical instrument either processes light waves to enhance an image for viewing, or analyzes light waves (or photons) to determine one of a number of characteristic properties. Contents 1 Image enhancement 2 Analysis 3 Other optical devices …   Wikipedia

  • Optical attenuator — Variable Optical Attenuator An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The basic types of optical attenuators are fixed, step wise variable, and continuously …   Wikipedia

  • Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …   Wikipedia

  • Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …   Wikipedia

  • Optical comparator — Patent drawings for Hartness screw thread optical comparator (numbering removed for clarity).[1] …   Wikipedia

  • Optical mouse — A wireless optical mouse An optical computer mouse or optic mouse uses a light emitting diode and photodiodes to detect movement relative to a surface, unlike a mechanical mouse which has a ball which rotates orthogonal shafts which drive chopper …   Wikipedia

  • device — noun ADJECTIVE ▪ clever, ingenious ▪ labour saving/labor saving, useful ▪ complex, sophisticated ▪ simple …   Collocations dictionary

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