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.
Innocal™ NIST™ Calibration Certificate for Stroboscopes
Helps customers meet ISO, FDA, EPA, GLPs/GMPs and other quality standards.
Digi-Sense™ Precalibrated Tachometer
Ensure your equipment is in optimal operating condition, eliminating costly repairs
Cole-Parmer Extech 461895 Combination Optical/contact Tachometer
These tachometers feature both contact and optical measurement capabilities. Memory button holds last reading up to 5 minutes and recalls minimum and maximum readings. Display flips with the unit to help identify measuring mode. Model 87700-10 features a laser sighting for spotting targets up to 6 1/2 feet (1.9 m) away.
Cole-Parmer Extech 461825 Combination Optical Tachometer/Stroboscope
This meter is both a tachometer and a stroboscope. Use to measure rpm and speed, or motion analysis. Stroboscope mode features three selectable modes. Display flips with the meter for easy viewing. Meter automatically stores last reading, minimum and maximum in memory.
Cole-Parmer Extech 461995 Combination Laser/contact Tachometer
These tachometers feature both contact and optical measurement capabilities. Memory button holds last reading up to 5 minutes and recalls minimum and maximum readings. Display flips with the unit to help identify measuring mode. Model 87700-10 features a laser sighting for spotting targets up to 6 1/2 feet (1.9 m) away.
Cole-Parmer Extech 461920 Mini/Pocket-Size Laser Photo Tachometer
Use this tachometer for measuring applications including the rpm of motors, fans, rollers, or for additional monitoring of process equipment. Meter is easy to use—apply the reflective tape to the desired object, select RPM or REV mode by pressing the MODE button, and point the laser at the reflective tape on the object under test. The results are immediately displayed on the 5-digit LCD. Press the MEM button to recall the last and min/max readings. The last reading remains in the display for up to 10 seconds before the auto power off feature turns the meter off.
Cole-Parmer Shimpo DT-205LR-S12 Contact/Noncontact LCD Tachometer with 12" Circ. Measuring Wheel
A laser allows precise RPM measurement from 20 feet! Our new tachometers incorporate laser technology yet retain rugged construction and reliable quality components; both offer incredible value and versatility as they perform non-contact and contact applications via the included contact adapter. Capture fast speeds with laser precision Incorporating the precise laser technology and user-friendly functions as our standard tachometers, the Deluxe Models provide exceptional accuracy in measuring speed and length via a 12'' wheel; the larger wheel rotates more slowly than a standard 6'' wheel, enabling reliable and safe registration of high speeds. These superior instruments also feature a contact adapter, conveniently allowing both non-contact and contact measurement.
Cole-Parmer Shimpo DT-311A Digital Stroboscope; 115 VAC
The DT-311A stroboscope provides the illusion of "stopped motion." By adjusting the strobe’s flash rate, equipment appears to be standing still or in slow motion. The stroboscope also measures rotational (RPM) or reciprocating (strokes per minute) speeds with the same precision as an electronic digital tachometer. Ideally suited for printing inspection, motion analysis, preventive maintenance, and speed measurement of repetitive motion. The strobes provide timely data on vibrating parts, leaks, spray patterns and a variety of industrial and scientific operations. It is extremely easy to maneuver and operate via its lightweight and compact design and simplified user interface. Its rugged metal construction provides unequaled reliability in the harshest environments.
Monarch Instrument Pocket Tach PT99, Portable Tachometer
Pocket Tach 99 is a digital, battery-powered portable non-contact optical tachometer (red LED), which operates up to 36 inches from a reflective tape target using an LED light source. The ergonomic design allows safe, direct line-of-sight viewing of both the rotating target and the display at the same time, while providing a no-slip rubber surface for single hand operation. Pocket Tach 99 in the value-leader of the world-class Pocket Tach Series from Monarch. Power: (2) "AA" 1.5 VDC batteries (20 hours)
MSC Made in USA 6206-010 9 Inch Long x 3.6614 Inch Wide, Stroboscope 3.5433 Inch Meter Thickness, 30 to 10,000 Flash per Minute
Made in USA 6206-010 9 Inch Long x 3.6614 Inch Wide, Stroboscope 3.5433 Inch Meter Thickness, 30 to 10,000 Flash per Minute
Cole-Parmer Digi-Sense 8708 Reflective Tape for Noncontact Tachometers
Reflective Tape for Noncontact Tachometers. Optimize performance of your Digi-Sense tachometer.
Monarch Instrument Pocket Tachometer PT99 w/ NIST Certificate - 6109-010-CAL
Pocket Tach 99 is a digital, battery-powered portable non-contact optical tachometer (red LED), which operates up to 36 inches from a reflective tape target using an LED light source. The ergonomic design allows safe, direct line-of-sight viewing of both the rotating target and the display at the same time, while providing a no-slip rubber surface for single hand operation. Pocket Tach 99 in the value-leader of the world-class Pocket Tachometer Series from Monarch. CE Approved. Dimensions 6.92 "H x 2.4"W x 1.6"D; Accuracy ±0.01% or ±1 Digit
