The detector of the rotation speed of the engine and the minimum process to detect the rotational speed of the engine minimum

摘要

To provide a minimum rotation speed detector of engine of low cost and easy to use, which makes it possible to find precisely a minimum rotation speed of the engine.A detector of the minimum rotation speed of engine (10) includes a first oscillator (12a) fixed on a base (11) having a vibration frequency characteristic of a frequency of vibrau00e7Will an engine (20) operating at a speed of rotation normal minimum.The base (11) of the minimum rotation speed detector (10) is fixed on the engine (20) and the minimum rotation speed detector (10) detects a rotation speed of the engine (20) minimum in the form D.The first and ressonu00e3ncia oscillator (12a).