Method of making coordinate measurements

G - Physics – 08 – C

Patent

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Details

33/194, 340/137.

G08C 21/00 (2006.01) G01B 7/008 (2006.01) G01B 7/02 (2006.01)

Patent

CA 1169942

380-79-0090 METHOD OF MAKING COORDINATE MEASUREMENTS ABSTRACT OF THE DISCLOSURE A method of making measurements on a machine having a movable probe for measuring a part in which a present location of the probe is maintained and a past location (e.g., a part measurement) of the probe is also maintained (stored) and advantageously displayed. The measuring apparatus includes two sets of storage members, with the present position information of the probe stored in one set. The present probe position information is trans- ferred to the other storage members in response to a control signal. The control signal, such as an electrical signal indicating contact with an object, causes measure- ments to be transferred from the one set of storage members to the second set of storage members and, advantageously, the transfer of further information to the second storage members may be locked out for a prede- termined time or until an event occurs (such as a resetting signal). The first set of storage members continue to maintain present position information on the probe which may be moving, while an output device (dis- play, etc.) is coupled to the second set of storage members and is not affected by the change in the first set of storage members. The present invention has application to multi-dimension measuring (e.g., coordinate measuring machines) and single dimension measuring (e.g., height gages).

354604

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