| 释义 |
Bourdon3|ˈbʊədɒn|
The name of Eugène Bourdon (1808–84), French hydraulic engineer, used attrib. and in the possessive to designate his inventions: Bourdon('s) barometer, gauge, manometer, a pressure gauge employing a Bourdon tube; Bourdon coil, spiral, tube, a coiled metallic tube which tends to straighten out when pressure is exerted within it.
1859Negretti & Zambra's Catal. Opt. & Meteorol. Instruments 23 Bourdon's Barometers, card dial..metal dial and plate glass front. 1864Negretti & Zambra's Treat. Meteorol. Instruments 7 Bourdon's Pressure Gauge, with metal taps, adapted for all pressure below nine atmospheres. a1877Knight Dict. Mech. s.v. Bourdon Barometer, The Bourdon is commonly known as the metallic barometer. 1886Q. Jrnl. R. Meteorol. Soc. XII. 124 Each thermometer consists of a very thin curved metal case (a Bourdon tube). 1901W. W. F. Pullen Steam Engin. iv. 143 The Bourdon Gauge consists of an oval tube bent nearly into a complete circle, one end being fixed and the other free to move. 1923Glazebrook Dict. Appl. Physics III. 494/2 The Bourdon tube thermograph. Ibid., The Bourdon tube thermometer is much less sensitive to change of temperature than the bimetallic thermometer. 1930Engineering 14 Feb. 214/2 Any fall in pressure in the Bourdon tube will tend to open the pilot valve. 1959H. Barnes Oceanogr. & Marine Biol. 121 [In the bathythermograph] the temperature-responsive unit is not a wire but a liquid in metal thermometer with a Bourdon spiral. |