Invention Grant
- Patent Title: Inductive position sensor signal gain control for coordinate measuring machine probe
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Application No.: US17139592Application Date: 2020-12-31
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Publication No.: US11644299B2Publication Date: 2023-05-09
- Inventor: Christopher Richard Hamner , Scott Allen Harsila , Scott Ellis Hemmings , Andrew Michael Patzwald
- Applicant: Mitutoyo Corporation
- Applicant Address: JP Kanagawa-ken
- Assignee: Mitutoyo Corporation
- Current Assignee: Mitutoyo Corporation
- Current Assignee Address: JP Kanagawa-ken
- Agency: Seed IP Law Group LLP
- Main IPC: G01B7/012
- IPC: G01B7/012 ; G01D5/20

Abstract:
A scanning probe for a coordinate measuring machine with inductive position sensor signal gain control is provided. The scanning probe includes a stylus position detection portion with field generating and sensing coils, and for which corresponding output signals are indicative of a position of the probe tip of the stylus. Signal processing and control circuitry is configured to implement different operating regions, such as a central high gain operating region which corresponds to a central probe tip position range, as well as other lower gain operating regions, and for which transition operations may be performed for adjusting the gain. In various implementations, transition operations for adjusting a gain may include operations such as: adjusting power to a field generating coil configuration; adjusting a gain of a front end amplifier; altering characteristics of sensing coils; adjusting an input range of an analog to digital converter, etc.
Public/Granted literature
- US20220205773A1 INDUCTIVE POSITION SENSOR SIGNAL GAIN CONTROL FOR COORDINATE MEASURING MACHINE PROBE Public/Granted day:2022-06-30
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