Patent ID: 7721455
Filing Date: 2010-05-25
Classification: G01B

Abstract:
1. A measuring instrument comprising: a detector that outputs a measured value as an electric signal; a digital display unit; an analog display unit in which a plurality of display segments are arranged at equal intervals in an encircling belt; and a display controller that displays the measured value detected by the detector on the digital display unit and the analog display unit, wherein the display controller includes: a tolerance range display unit that lights or blinks display segments corresponding to a preset tolerance range relative to a preset value; a first determiner that obtains a difference between a preset value and a present measured value, and determines whether the difference is within an analog display range wider than the tolerance range; a difference display unit that lights a display segment corresponding to last one or last two digits of the present measured value when the first determiner determines that the difference is within the analog display range; a second determiner that determines whether the difference is within the tolerance range; and an acceptance or rejection display unit that displays a result determined by the second determiner.