Probe driving mechanism for displacement measuring apparatuses

Details Probe driving mechanism for displacement measuring apparatuses Probe driving mechanism for displacement measuring apparatuses

2006-04-04

2006-04-04

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C033S559000, C033S560000, C033S572000, C033S832000, C033S503000, C033S504000

Reexamination Certificate

active

07024273

ABSTRACT:
A probe driving mechanism for displacement measuring apparatuses, capable of carrying out a stable, constant speed probe feeding operation without additionally providing a motor rotation detecting rotary encoder and a tachometer generator. When an output from a scale varies in accordance with the power applied to a motor, the power applied to the motor is controlled in accordance with an output from the scale. When the variation of an output from the scale becomes small even though the same level of power continues to be applied to the motor, a judement that a probe contacts the workpiece is given, and the power applied to the motor is set smaller. When an output from the workpiece sensor varies, the power applied to the motor is controlled in accordance with one of an output from the scale and that from the workpiece sensor the speed variation of which is larger than that of the other.

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