calibration is used to correct meter readings

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• Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… …   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

• Color calibration — The aim of color calibration is to measure and/or adjust the color response of a device (input or output) to a known state. In ICC terms this is the basis for a additional color characterization of the device and later profiling[1]. In non ICC… …   Wikipedia

• Brix — For other uses, see Brix (disambiguation). Degrees Brix (symbol °Bx) is the sugar content of an aqueous solution. One degree Brix is 1 gram of sucrose in 100 grams of solution and represents the strength of the solution as percentage by weight (% …   Wikipedia

• Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …   Wikipedia

• Multimeter — A digital multimeter A multimeter or a multitester, also known as a VOM (Volt Ohm meter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter may include features such as the ability …   Wikipedia

• Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer (   …   Wikipedia

• Noise dosimeter — A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations… …   Wikipedia

• Gran plot — NOTOC NOEDITSECTION The equivalence volume is used to compute whichever of [H^+] {0^{ or [OH^ ] {0^{ is unknown. The pH meter is usually calibrated with buffer solutions at known pH values before starting the titration. The ionic strength can be… …   Wikipedia

• Potentiometer (measuring instrument) — A potentiometer is an instrument for measuring the potential (voltage) in a circuit. Before the introduction of the moving coil and digital volt meters, potentiometers were used in measuring voltage, hence the meter part of their name. The method …   Wikipedia

• Rongorongo — Infobox Writing system name = Rongorongo type = Undeciphered time = Time of creation unknown, most tablets lost or destroyed in the 1860s languages = Assumed to be Rapanui sample = Rongorongo Qr3 7 color.jpg iso15924 = RoroRongorongo… …   Wikipedia