Tachometers/Stroboscopes

Shenzhen Graigar Technology Co.,Ltd.

Measurement of the speed of a rotating shaft is a common requirement in many industrial and laboratory applications. Such measurements have usually been carried out in the past with the help of contact type tachometers with friction drive. More recently digital optical non-contact tachometers have been designed which count the reflected pulses from a white patch on the shaft and then display the speed in rpm. The light source is usually a filament lamp operating with dry cells leading to limited life and illumination. A similar idea
with magnetic pick-up from a particular area of the shaft has also been used for speed measurement.