Displacement measuring instrument

A displacement measuring instrument comprising an encoder that detects an amount of moving displacement of a measuring element with the moving direction of the measuring element as a measuring direction while the measuring element is in contact with the surface of an object to be measured, a calculation unit that calculates a measurement value from at least the amount of moving displacement, and a display unit that displays at least the measurement value, wherein the calculating unit comprises:

• a measuring section that calculates the measurement value from the amount of moving displacement and displays the measurement value on the display unit;
• a speed acquiring section that acquires the speed of the measuring element;
• an approach analyzing section that analyzes and determines whether the approach of the measuring element to the object to be measured is appropriate or inappropriate based on the transition of the speed acquired by the speed acquiring section during a predetermined period immediately before the measuring instrument stops;
• and
• a warning section that issues a warning when the approach analyzing section determines that the approach of the measuring element to the object to be measured is inappropriate.