revolution counter

noun

1. a device for counting or recording the number of revolutions made by a rotating shaft, as of a motor or engine.

Example Sentences

Besides, the pulley shaft actuates a revolution counter, and a clock measures the time employed in the experiment.

From Project Gutenberg

The watch, anemometer and revolution counter were all automatically started and stopped simultaneously.

From Project Gutenberg

I had nothing to do other than to give occasional attention to the revolution counter, altimetre, and speed-dial.

From Project Gutenberg

The addition of a revolution counter to the drum, then, will solve the problem.

From Project Gutenberg

While a coil is being wound, it is a simple matter to count the turns by any simple form of revolution counter.

From Project Gutenberg