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Jean-Pierre Christin (31 May 1683 – 19 January 1755) was a French physicist, mathematician, astronomer, and musician. His proposal in 1743 to reverse the Celsius thermometer scale (from water boiling at 0 degrees and ice melting at 100 degrees, to where zero represented the freezing point of water and 100 represented the boiling point of ...
1742 — Anders Celsius proposed a temperature scale in which 100 represented the temperature of melting ice and 0 represented the boiling point of water at 25 inches and 3 lines of barometric mercury height. [8] This corresponds to 751.16 mm, [9] so that on the present-day definition, this boiling point is 99.67 degrees Celsius. [10]
Keep the temperature of the sensor wire constant and measure the voltage as a function of pressure; Note that keeping the temperature constant implies that the end losses (4.) and the thermal radiation losses (3.) are constant. [3] The electrical resistance of a wire varies with its temperature, so the resistance indicates the temperature of wire.
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Pertains to measuring instruments that measure atmospheric or underwater pressure. ... Timeline of temperature and pressure measurement technology ... Tire-pressure ...
The parent of all mercury pressure gauges is the mercury barometer invented by Evangelista Torricelli in 1643. [15] An early engineering application of the mercury pressure gauge was to measure pressure in steam boilers during the age of steam. The first use on steam engines was by James Watt while developing the Watt steam engine between 1763 ...
In 1961 the individual states agencies for Australia came back under Budenberg Gauge Co., and Budenberg Australia Pty Ltd was set up with a factory in Melbourne. Two years later a third factory was opened in Amlwch, Anglesey. Budenberg Gauge remained a family-owned company from its inception in 1850 until 1991 when it was sold to Burnfield plc.
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