| 释义 |
profiˈlometer
[ad. F. profilomètre (Brocas); in Ger. profilzeichner (Hasting); f. profile n. + -ometer.]
1. Any instrument or device for measuring the profile of the face.
1895in Funk's Standard Dict. 1939Jrnl. Amer. Med. Assoc. 18 Nov. 1903/2 A description of Dr. Joseph Safian's profilometer is found in his book ‘Rhinoplastic Surgery’.
2. Any instrument for measuring or recording the roughness of a surface; spec. (a) one in which a fine stylus is drawn over a metal surface; (b) one consisting of a wheeled frame for travelling along a road.
1937Metal Cleaning & Finishing May 426 During the past two years, a new instrument called the ‘Profilometer’ has been developed. This instrument supplements the earlier work in this field, and enables roughness measurements to be made rapidly with a portable instrument. 1938Times 26 Nov. 9/4 The profilometer—designed and constructed at the Road Research Laboratory—has been used to measure the riding qualities of a number of experimental sections. This 16-wheeled machine compares irregularities in the surface by integrating the vertical rise and fall in profile of the road above a given datum, the results being recorded as ‘inches per mile’. 1949G. Schlesinger Factory xi. 219/1 Generally the Profilometer provides only ‘average’ readings..determining the roughness of the surface without producing conclusions as regards the waviness. 1958H. M. Sherrard Austral. Road Pract. xvi. 302 The profilometer consists of a wheel resting freely on the road surface whose vertical movement is traced on a ribbon of paper, thus giving a profile of the road. 1966R. Ashworth Highway Engin. xii. 254 The profilometer consists of a 16-wheeled articulated carriage arranged so as to support the recording gear at a constant height above the continuously arranged level of the road surface at these 16 wheel points. 1976[see profilometry below].
Hence profiˈlometry, the use of such an instrument; profiloˈmetric a.
1971T. F. J. Quinn Applic. Mod. Physical Techniques Tribol. i. 32 This ‘microscopic’ approach must involve the use of as many methods of surface examination as possible. The more conventional methods of optical microscopy..and surface profilometry.. are often too coarse for this approach. 1975D. F. Moore Princ. & Applic. Tribol. ii. 15 The profilometric, cartographic, and photogrammetric measurement techniques..deal with a complete representation of surface roughness. 1976J. Halling Introd. Tribol. ii. 21 The most usual method for the study of surface geometry is profilometry. In the profilometer a very fine diamond stylus..is drawn over the surface irregularities... The vertical movement of the stylus..is measured and amplified, usually electronically, so that the recorded output provides a picture of the actual surface. |