Translation guide
A tachometer is a device that measures the rotation speed of a shaft or disk, typically in revolutions per minute (RPM). In Japanese, the most common term is タコメーター, a loanword from English. There are also native Japanese terms used in technical contexts.
Referring to a tachometer in a vehicle or general context.
The most common and widely understood term for a tachometer, especially in cars. It is a loanword from English.
車のタコメーターが壊れた。
The car's tachometer broke.
A native Japanese term meaning 'rotation meter'. It is used in technical or industrial settings, but can be understood generally.
エンジンの回転計を見てください。
Please look at the engine's tachometer.
Referring to a tachometer in engineering, manufacturing, or scientific contexts.
A more precise technical term meaning 'rotational speed meter'. Commonly used in engineering and industrial documentation.
この機械には回転速度計が付いています。
This machine is equipped with a tachometer.
A variant spelling of タコメーター, sometimes used in technical documents. The long vowel mark is omitted.
Literally 'revolution count meter'. Less common, but may appear in older technical manuals.
回転数計の針が振り切れた。
The tachometer needle went off the scale.
タコメータの精度を確認する。
Check the accuracy of the tachometer.