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United States Army Field Manuals. FM-34-45. United States Army Field Manuals are published by the United States Army 's Army Publishing Directorate. They contain detailed information and how-tos for procedures important to soldiers serving in the field. As of July 2007, some 542 field manuals were in use.
Weather stations typically have these following instruments: Thermometer for measuring air and sea surface temperature. Barometer for measuring atmospheric pressure. Hygrometer for measuring humidity. Anemometer for measuring wind speed. Pyranometer for measuring solar radiation. Rain gauge for measuring liquid precipitation over a set period ...
Meteorological instrumentation. Galileo thermometer. Meteorological instruments (or weather instruments ), including meteorological sensors ( weather sensors ), are the equipment used to find the state of the atmosphere at a given time. Each science has its own unique sets of laboratory equipment. Meteorology, however, is a science which does ...
A thermometer is a device that measures temperature (the degree of hotness or coldness of an object) or temperature gradient (the rates of change of temperature in space). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in ...
A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into. The shorter, bulbous end of the tube containing the reservoir is called the bulb and the ...
A sailor checking the temperature of a ventilation system. A pyrometer, or radiation thermometer, is a type of remote sensing thermometer used to measure the temperature of distant objects. Various forms of pyrometers have historically existed. In the modern usage, it is a device that from a distance determines the temperature of a surface from ...
including C 1, 25 July 1952. This manual supersedes FM 100–5, 15 June 1944. This manual supersedes FM 100–5, 15 June 1944. including C 1, 16 September 1942; C 2, 12 November 1942; and C 3, 26 April 1943. These regulations supersede FM 100–5, Tentative Field Service Regulations, Operations, October 1, 1939.
Time. Watch, a time measurement device. In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stopwatches are also used to measure time in some sports.