G - Physics – 01 – B
Patent
G - Physics
01
B
340/163, 354/28,
G01B 11/00 (2006.01) G01D 5/244 (2006.01) G01D 5/36 (2006.01) G01P 13/04 (2006.01)
Patent
CA 1142345
380-78-0130 ABSTRACT OF THE DISCLOSURE A measuring machine including a measuring system in which a measuring increment is divided into smaller units for better resolution and accuracy. The increased mea- surement resolution is accomplished by detecting a Moire fringe pattern at two locations, generating at least two square waves representative of the measurement, assigning a digital value to the square waves at two different times, using the digital values of the square waves at the two times as a ROM address for look-up. The ROM has values (markers) stored as an indication of whether the measure- ment should be incremented and by how much (+1 or -1 in one embodiment). The square waves are pulse patterns which are offset (i.e., change state at different points), using the digital values from a present state and previous state to provide a ROM address representative of whether a pulse should be created indicating a relative movement and if so providing an indication of which direction in which the apparatus is moving.
350207
Bendix Corporation (the)
Macrae & Co.
LandOfFree
Relatively moving photodiode sensed diffraction grating-type... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Relatively moving photodiode sensed diffraction grating-type..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relatively moving photodiode sensed diffraction grating-type... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-533464