Cooperative measurement gauge system for multiple axis position measurement

Patent metadata

Field	Value
Publication number	US-10527397-B2
Application number	US-201715855805-A
Country	US
Kind code	B2
Filing date	Dec 27, 2017
Priority date	Dec 27, 2017
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A first position measurement device (“FPMD”) is configured to control and operate both standalone and combined device operating modes. During the combined device operating mode, the FPMD inputs second-device measurement sample outputs provided by a second position measurement device (“SPMD”) via an inter-device communication connection. The FPMD and the SPMD are held in a fixed relationship in a workpiece measurement arrangement (e.g., with transverse measuring axes). Concurrent measurement data sets are determined as including at least a first-device measurement sample output from the FPMD and a second-device measurement sample output from the SPMD corresponding to concurrent first-device and second-device sample periods. Each concurrent measurement data set is associated with a corresponding measurement sample region on the workpiece. A combined measurement data output (e.g., as output and/or displayed by the FPMD) is provided for the current measurement sample region on the workpiece based on the corresponding concurrent measurement data set.

First claim

What is claimed is:

1. A first position measurement device (FPMD), comprising:
a first position sensor housed in a first device housing and configured to provide first-device measurement sample outputs indicative of a workpiece surface coordinate measurement relative to the FPMD along a first measuring axis, for corresponding measurement sample regions on a workpiece during a corresponding first-device sample period; and
a first signal processing and control portion housed in the first device housing comprising a first measurement sample association portion that is utilized to implement a combined device operating mode, wherein the FPMD is configured to operate in a standalone operating mode during a standalone operating period and the combined device operating mode during a combined device operating period;
wherein:
the combined device operating mode comprises:
establishing an inter-device communication connection with a second position measurement device (SPMD) comprising a second position sensor configured to provide second-device measurement sample outputs indicative of a workpiece surface coordinate measurement relative to the SPMD along a second measuring axis, for corresponding measurement sample regions on a workpiece during a corresponding second-device sample period, wherein the combined device operating mode is usable when the FPMD and the SPMD are held in a fixed relationship in a workpiece measurement arrangement with the first measuring axis and the second measuring axis arranged in a fixed axis relationship;
inputting the first-device measurement sample outputs provided by the first position sensor;
inputting the second-device measurement sample outputs provided by the SPMD via the inter-device communication connection;
determining concurrent measurement data sets comprising at least a first-device measurement sample output and a second-device measurement sample output corresponding to concurrent first-device and second-device sample periods, each concurrent measurement data set associated with a corresponding measurement sample region on the workpiece; and
providing a combined measurement data output for a current measurement sample region on the workpiece based on the corresponding concurrent measurement data set; and

the standalone operating mode comprises:
not establishing an inter-device communication connection with a SPMD; and
providing a standalone measurement data output comprising a workpiece surface coordinate measurement relative to the FPMD along the first measuring axis for a current measurement sample region on a workpiece.

2. The FPMD of claim 1 , wherein the standalone operating mode is a default operating mode of the FPMD, and the FPMD further comprises a first user interface comprising first-device control elements including a combined device operating mode activation element.

3. The FPMD of claim 2 , wherein the FPMD comprises the first user interface and a first-device display that are connected to exchange signals with the first signal processing and control portion.

4. The FPMD of claim 3 , wherein the first-device control elements and the first-device display are included in the first device housing.

5. The FPMD of claim 4 , wherein the FPMD comprises one of a dial indicator or a height gauge.

6. The FPMD of claim 3 , wherein the first-device display is controlled by the first signal processing and control portion, and during the standalone operating mode only a single axis coordinate measurement is displayed on the first-device display, and during the combined device operating mode a combined mode display format on the first-device display displays two axis coordinate measurements.

7. The FPMD of claim 1 , wherein the combined measurement data output comprises a parallel combined measurement data output usable when the fixed axis relationship corresponds to parallel axes, and the combined measurement data output comprises a coordinate measurement value that is based on summing the first-device measurement sample output and the second-device measurement sample output.

8. The FPMD of claim 7 , wherein the FPMD further comprises a first user interface comprising first-device control elements including a parallel axis selection element activation element that activates the use of the parallel combined measurement data output when the FPMD is operating in the combined device operating mode.

9. The FPMD of claim 1 , wherein the combined measurement data output comprises a two axis combined measurement data output usable when the fixed axis relationship corresponds to transverse axes, and the combined measurement data output comprises two coordinate measurement values corresponding to different coordinate axes.

10. The FPMD of claim 9 , wherein when the fixed axis relationship corresponds to transverse axes, two-dimensional surface profile data corresponding to the workpiece surface is provided by a plurality of instances of the combined measurement data output corresponding to a plurality of different measurement sample regions on the workpiece.

11. The FPMD of claim 1 , wherein the inter-device communication connection comprises at least one of a wired connection, a wireless connection, a Bluetooth connection, or a WiFi connection.

12. The FPMD of claim 1 , wherein the determining of the concurrent measurement data sets comprises the FPMD triggering, via the inter-device communication connection, a concurrent second-device measurement sample output of the SPMD, at a time proximate to a concurrent first-device measurement sample output of the FPMD.

13. The FPMD of claim 12 , wherein the FPMD triggers at the same time:
the concurrent second-device measurement sample output of the SPMD; and
the concurrent first-device measurement sample output of the FPMD.

14. The FPMD of claim 1 , wherein the determining of the concurrent measurement data sets comprises inputting a plurality of second-device measurement sample outputs of the SPMD via the inter-device communication connection, and selecting a second-device measurement sample output that is closest in time to a first-device measurement sample output of the FPMD as its concurrent sample so as to determine a concurrent measurement data set.

15. The FPMD of claim 1 , wherein the FPMD and the SPMD are standalone measurement devices that are operable to provide workpiece measurements independently of one another, and without control by a remote computer, and the first signal processing and control portion comprising the first measurement sample association portion is configured to activate the combined device operating mode without control by a remote computer.

16. The FPMD of claim 15 , wherein during the standalone operating mode the first signal processing and control portion provides a standalone mode output format comprising a single axis measurement data output format operable to output a single axis coordinate measurement as a single output string sent to a remote computer, and during the combined device operating mode the first signal processing and control portion provides a combined mode output format comprising a two axis combined measurement data output format usable when the fixed axis relationship corresponds to transverse axes, and the two axis combined measurement data output format is operable to output two concurrent coordinate measurements for different measurement axes as a single output string sent to a remote computer.

17. A method for operating a dimensional metrology measurement system including system members, comprising:
a first position measurement device (FPMD), compris

Assignees

• Mitutoyo Corp

Inventors

• Nahum Michael

Classifications

• G01B21/00

  Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant · CPC title

• G01B21/04

  by measuring coordinates of points · CPC title

• G01B3/20

  Slide gauges · CPC title

• G01B2210/58

  Wireless transmission of information between a sensor or probe and a control or evaluation unit · CPC title

• G01B3/22 Primary

  Feeler-pin gauges, e.g. dial gauges (for measuring contours or curvatures G01B5/20) · CPC title