发明名称 |
Pocket surface roughness gage |
摘要 |
A compact, efficient, self-contained dynamic surface roughness gage includes a staging frame that supports a reciprocatable arm that can be pivoted about an axis perpendicular to a V-shaped working surface at the underside of the frame between releasably fixed positions located 90 DEG apart to facilitate staging the gage on different workpiece configurations. The arm supports a probe comprising a skid and a stylus which is coupled by way of a special flexure to a stereo phonograph cartridge so that only the vibratory motions of the stylus in a direction perpendicular to the nominal plane of the frame working surface are coupled to the transducer. As the probe scans over a workpiece surface with the skid following the same track as the stylus, the two outputs from the transducer are summed to produce a single electrical analog of the vibratory motion of the stylus in that favored direction. That signal is coupled to a control circuit which processes the signal and applies an instruction to a display which thereupon shows a number correspnding to the surface roughness of the workpiece as measured by the gage.
|
申请公布号 |
US4776212(A) |
申请公布日期 |
1988.10.11 |
申请号 |
US19870063667 |
申请日期 |
1987.06.19 |
申请人 |
FEDERAL PRODUCTS CORPORATION |
发明人 |
PARSONS, FREDERICK G.;MILLER, MARK H.;COTE, EUGENE F. |
分类号 |
G01B5/28;G01B7/34;(IPC1-7):G01B5/28 |
主分类号 |
G01B5/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|