Display configuration for multimode electronic calipers having a ratiometric measurement mode

摘要

A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension Xref. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance Xcurr divided by the reference dimension Xref. A persistent number of decimal places used to the right of the decimal point as seen on a display is determined based on a current reference dimension Xref, an increment used for the least significant digit, and an internal measurement resolution of the multimode electronic measuring instrument.

主权项

1. A method for displaying a ratiometric measurement value in a multimode measurement instrument comprising a position-sensing transducer, the multimode measurement instrument having an internal measurement resolution, the method comprising:
(a) operating the multimode measurement instrument to select a ratiometric measurement mode of operation using a mode-selecting feature included in a user interface of the multimode measurement instrument; (b) operating the multimode measurement instrument to set a reference dimension during the ratiometric measurement mode of operation; (c) for each reference dimension usable in the ratiometric measurement mode of operation, operating the multimode measurement instrument to determine a persistent number of decimal places to be used in displaying ratiometric measurement values that are based on the set reference dimension, wherein the persistent number of decimal places is determined based, at least in part, on the set reference dimension such that the persistent number of decimal places persists throughout the ratiometric measuring mode of operation for displaying any ratiometric measurement value based on the set reference dimension; and (d) operating the multimode measurement instrument to automatically display ratiometric measurement values using the persistent number of decimal places, wherein the ratiometric measurement values are determined based on a measurement derived from the position-sensing transducer and the current set reference dimension.