Tachometer

A tachometer and a stroboscope are essential instruments for measuring and monitoring rotational motion in industry, maintenance, quality control, and research. They make it possible to determine the speed at which an object is moving.

A tachometer is a measuring instrument used to determine the rotational speed of an object, generally expressed in revolutions per minute (rpm). It is used to monitor the proper functioning of motors, turbines, fans, rollers, and other rotating equipment. Professional models exist in optical (non-contact) or mechanical (contact) versions, offering high precision and ease of use in the field. Modern tachometers often feature a digital display, memory for storing measured values, and advanced functions such as linear speed measurement or conversion to distance travelled. They are essential for preventive maintenance, fault diagnosis, machine adjustment, and optimisation of industrial processes. Several types of sensors are used, including mechanical, optical, and eddy-current sensors.

A stroboscope emits light flashes at regular intervals to observe and measure the rotational speed of moving objects. Thanks to the stroboscopic effect, it can visually “freeze” a rapidly rotating object, making inspection, defect detection, and accurate measurement of rotational frequency (rpm or Hz) much easier. Professional stroboscopes are used in industrial maintenance, quality control, machine alignment, and the analysis of cyclic phenomena too fast for the human eye. They offer precise flash-frequency adjustment, memory for storing several values, and a backlit LCD screen for easy reading even in dark environments.