Tachometers and Stroboscopes
Tachometers and Stroboscopes
Instruments used to measure the motion and the rotational speed of objects.
In the laboratory, tachometers and stroboscopes are used to calibrate or check the speed of centrifuges and other equipment that rotates or vibrates.
Tachometers measure the rotation speed of a shaft or disk and display the results as revolutions per minute (RPM). Tachometers may measure remotely or require physical contact. Common uses include measuring the speed of centrifuges, pumps, rollers, shafts, gears, motors, and moving surfaces.
Digital tachometers and NIST-traceable tachometers and stroboscopes are available.
Stroboscopes or strobes measure movement frequency. They consist of a rotating disk with slots or holes or a flashtube or lamp that produces short repetitive light flashes.
Stroboscopes can be used to study or measure rotating, reciprocating, oscillating, or vibrating objects and cyclic speed. When the stroboscope rate matches the frequency (or a fraction of the frequency) of a rotating or vibrating object, the object appears to be stationary or moving slowly forward or backward.
Various types of lamps are used in stroboscopes.
- Gas-discharge or solid-state lamps are used in electronic stroboscopes; they can emit light quickly when powered on and stop immediately when turned off
- Incandescent lamps have brief warm-up and cool-down periods that make them too slow for some stroboscopic effects
- Neon lamps or light emitting diodes may be used for low-intensity applications, although neon lamps have been mostly replaced by LEDs
- Xenon flash lamps are often used for medium- or high-intensity strobe applications; however, forced air or water cooling may be needed to prevent the lamp from melting
Fisherbrand™ Traceable™ Tachometer with Red LED Pointer
Touchless, handheld point-and-shoot. Precision quartz crystal ensures stable, repeatable results. Designed to measure centrifuges, pumps, rollers, shafts, gears, motors, and moving surfaces.
Fisherbrand™ Traceable™ Touch Tachometer
Simple contact operation with accurate readings.
Monarch Nova-Strobe DBX Deluxe Stroboscope Kit
These Nova-Strobe DBX Deluxe stroboscopes feature a pistol-grip handle with a latching trigger and threaded bushing for extended 'hands-free' tripod mounting. High flash energy allows measurements in bright areas. Select standard or phase-shifting models according to your application.
Fisherbrand™ Traceable™ Reflective Tape for Noncontact Tachometers
Optimize the performance of your tachometer with this Traceable™ Reflective Tape for Noncontact Tachometers.
Digi-Sense™ Precalibrated Tachometer
Ensure your equipment is in optimal operating condition, eliminating costly repairs
Testo™ Self-Adhesive Reflective Tape
Use this reflective tape for a variety of applications. Testo™ Self-Adhesive Reflective Tape is designed for use with Testo tachometers.
Fisherbrand™ Traceable™ Digital Tachometers
Vivid 0.5 in. high display. Fisherbrand Traceable Digital Tachometer measures the speed of a centrifuge from a distance up to 12 in. (30cm).