发明名称 |
THICKNESS MEASUREMENT DEVICE, INSPECTION APPARATUS, MANUFACTURING SYSTEM AND THICKNESS MEASURING METHOD |
摘要 |
PROBLEM TO BE SOLVED: To provide a thickness measurement device accurately measuring thickness values of an object to be measured which has minute irregularities on its surface. SOLUTION: The device is provided with: a distance sensor 11 which irradiates an object surface to be measured with a laser beam L for the measurement, receives reflection right R of the laser beam L, and outputs an output signal S specifying a distance value between itself and the object surface to be measured; a moving mechanism moving a ceramic plate 41, whose surface 41a is made flat or almost flat; a control section which controls the moving mechanism so that the ceramic plate 41 comes into contact with a surface of a case body 32 and which controls the distance sensor 11 so as to irradiate the surface 41a of the ceramic plate 41 with the laser beam L and to output the output signal S; and a measurement section which measures the thickness value of the case body 32, on the basis of the output signal S. COPYRIGHT: (C)2005,JPO&NCIPI
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申请公布号 |
JP2005083894(A) |
申请公布日期 |
2005.03.31 |
申请号 |
JP20030316259 |
申请日期 |
2003.09.09 |
申请人 |
TDK CORP |
发明人 |
KOTEGAWA KENJI;SHINKAWA SHINTARO;TEJIMA KEIJI;IIDA TAKASHI |
分类号 |
G01B11/06;G11B23/107;G11B23/113;(IPC1-7):G01B11/06 |
主分类号 |
G01B11/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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