Abstract: A shaft revolution counter including one or more reed magnetic sensors interacting with one or more magnets attached to the shaft. The interaction generates voltage spikes in the reed magnetic sensors that are used as input signal to an electronic non-volatile counter, as well as its sole power source.
Abstract: A shaft revolution counter comprising one or more reed magnetic sensors interacting with one or more magnets attached to the shaft. The interaction generates voltage spikes in the reed magnetic sensors that are used as input signal to an electronic non-volatile counter, as well as its sole power source.
Abstract: A linear motor of the moving coil type, without a flexible power cable attached to the moving coils assembly. Current is supplied to the moving coils assembly by means of continuous sliding contacts and its position is measured by a contact less position sensor.