Xenon and LED stroboscopes

Stroboscopes are tools that allow you to observe and study an object in a motion, which can be rotational or oscillatory, as if it were stationary, as well as measure its speed. The operating principle is based on the observation, in low light conditions, of the object in constant movement, illuminated by very short flashes of light of strong intensity. When you observe a perfectly still image of the moving object, it means that the stroboscope's flashing frequency coincides with the rotation speed or the oscillatory motion, so you can read the speed measurement on the instrument, without any contact with the mechanism in movement

The main element consists of a special xenon or LED lamp capable of emitting up to 5000 flashes per second, or 300000 per minute. This very high frequency value allows you to observe an object that moves cyclically, vibrates or rotates on its axis even at very high frequencies.


DT-311A Series Portable Xenon Stroboscopes

  • Maximum precision and very stable flashing
  • Simple to use commands
  • Easy to read LED display
  • Detachable handle
  • 12 V DC output for external sensors
  • Accepts external trigger signals and provides sync output pulses
  • Phase adjustment for better viewing
  • Quick selection of the double and halved flashing for error-free reading
  • Flashing frequency control
DT-311A Xenon StroboscopeProduct details

DT-315A Series Portable Xenon Stroboscopes

  • Maximum precision and very stable flashing
  • Simple to use commands
  • Easy to read LED display
  • Detachable handle
  • 12 V DC output for external sensors
  • Accepts external trigger signals and provides sync output pulses
  • Phase adjustment for better viewing
  • Quick selection of the double and halved flashing for error-free reading
  • Flashing frequency control
DT-315A Xenon StroboscopeProduct details

DS2000LED series portable LED stroboscopes

  • During their period of use, the LEDs do not wear out and do not require replacement
  • It produces the brightest light and sharpest image of the entire range of LED stroboscopes
  • Market leader with a brightness of 3000 Lux (measured at 6000 fpm at a distance of 20 cm)
  • NIST traceable calibration certificate included
  • The three AA batteries provide the user with six hours of continuous operation
  • An external input / output trigger is available as an option (only for the OT model)
  • User selectable units, Hz or FPM (flash per minute)
  • Warranty of 2 years
LED stroboscope model DS-2000LEDProduct details

Compact Xenon Stroboscopes PK2X series

  • 2 hour battery life on a full charge
  • It can also be used when it is being charged or continuously while it is connected to the mains
  • The internal rechargeable lithium-ion battery uses the most modern smart-charge technology to ensure a long battery life and a duration of 2 hours of continuous operation on a single charge
  • Calibration and traceability certificate included
  • Portable with light and robust structure
  • Accepts the sensor input for activating the external flash
  • ± 1 RPM resolution across the range with high speed control accuracy and no drift
  • High brightness of the xenon lamp (more than 1200 Lux) with a life of 200 million flashes
  • Provided with a threaded insert on the lower part for mounting on an articulated arm or other type of fixing
  • The AC adapter / charger can be used worldwide (100 - 240V AC); it comes with adapters for North America, Europe, the UK and Australia
  • CE certified
Portable stroboscope model PK2XProduct details


Typical applications of stroboscopes

  • Measurement of speed and print quality in the printing industry
  • Measurement of the rotation speed of pulleys
  • Checking the integrity of the transmission belts
  • Inspection of high speed motors and electrospindles for special processes

Stroboscopes - Introduction to choice

There are many stroboscopes on the market with very different characteristics and prices.

In this section we collect some tips that we believe may be invaluable in selecting the correct tool.

Intensity and quality of light….

Much of the cost of the stroboscope is determined by the quality of the lamp used and the amount of light it is capable of emitting.

Stroboscopes must be able to emit flashes of light with an extremely short pulse duration, in the order of a few microseconds (some drop below 10 microseconds), otherwise the strobing effect is not visible or the quality of the display of the object is poor.

Not only must the lamp emit fast and very bright pulses of light but it must also be able to last for several million cycles because the stroboscopic effect is often observed at very high frequencies. Therefore all the goodness of the stroboscope is played on the quality of the lighting system.

Often medium-low end stroboscopes characterized by very competitive costs employ lamps whose duration is limited in time and the light emitted is of insufficient intensity to observe the object.

Furthermore, some stroboscopes do not allow to change the lamp compromising the use of the entire instrument when the lamp has exhausted its life. Always pay attention to the possibility for a stroboscope to be able to change the lamp (unless it is an LED stroboscope and therefore maintenance-free).

Another problem that must always be kept in mind is the presence of ambient light. In fact, it is not always possible to work in a completely dark environment and the light emitted by the stroboscope must always contrast the light of the surrounding environment.

Very often inexpensive stroboscopes are tested in completely dark environments and when working in the field the desired effect is not obtained.

Xenon and LED technology ……

Essentially there are two technologies: Xenon and LED.

Xenon technology allows to obtain flashes of light with high energy (and therefore high luminous intensity) and with very competitive costs.

But the Zenon lamp is subject to deterioration. It is therefore necessary to provide for the replacement after a few million flashes.

LED technology has the advantage of having a practically unlimited life and does not require the replacement of the lamp. It also has the advantage of being able to emit a much higher number of flashes per minute than Xenon technology.

The disadvantage of LED technology is the higher purchase cost (partially amortized by the absence of maintenance) and the lower light produced at the same price range (even if in the future with the technological evolution of LED systems there will be a reduction in the costs).

The emission optics ...

All the light produced by the lamp must be directed to the object to be illuminated.

The design and construction of the optical part of the stroboscope must be treated in detail.

Stroboscopes of medium-low range and characterized by very low costs often have the optical part with the passage of months loses the characteristics of brightness or light transmission with the consequence of no longer having the characteristics of initial brightness.

The batteries of portable instruments ……

As with all devices powered by rechargeable batteries (cell phones, cameras, personal computers), the choice of good quality batteries allows the stroboscope to be maintained in conditions of efficiency and durability.

On the contrary, low quality batteries tend not to guarantee a correct recharge and consequent limited working times or malfunctions in the light emission system.

A battery powered stroboscope should always have a system of high quality batteries and above all interchangeable in order to maintain the quality of the product purchased over time.

Flash precision ...

Very often stroboscopes are used not only to "freeze" the movement of an object but also to measure its frequency of movement or rotation.

The precision in generating the pulses also determines the precision of the measurement. Cheap stroboscopes also tend to have very low accuracy in determining the frequency of the movement.

The accessories ….

Often the operator using the stroboscope does not work in the laboratory but directly on the production lines or in difficult environments.

The presence of a complete set of accessories ensures complete freedom of use of the stroboscope (carrying cases, protective cases, belt clip, support tripods, fixing brackets, multi-voltage power supplies)

The external trigger ...

A useful function to be able to “hook” the driving frequency of the stroboscopic lamp to the production machine or to a specific event. In this way the stroboscope flashing frequency is “automatically” linked to the production machine and therefore it takes less time to link the repetitive movement to be examined with the stroboscope.