New Measurement Blog

10. May 2010

This Blog will be closed next time. Find new posts at http://blog.micro-epsilon.com/


Laser Triangulation up to a distance of 2m

18. March 2010

The optoNCDT 1710-1000 sensor has a measuring range that starts from a distance of one metre from the sensor, so displacement can be measured at a distance of 2m from the sensor. The sensor comes with an integrated controller in a compact 200mm x 83mm x 48mm housing. The diameter of the light spot is constant across the complete beam path. With a measuring rate of 2.5kHz, the sensor is technically superior to existing alternative sensors on the market, providing 100µm resolution without averaging. 4 … 20 mA, 0 … 10V, RS422 or USB outputs are available. The optoNCDT 1710-1000 is used for measurement objects that have a high degree of freedom or movement. Other potential applications are in harsh ambient conditions, where the sensor has to measure onto the object from a safe distance or if the target is in a vacuum. The sensor also performs very well in high target temperatures or when it is not possible to mount the sensor close to the target.  Like all other models in the 1700 series, the optoNCDT 1710-1000 also benefits from a unique RTSC circuit for the real-time compensation of surface influences.


Sensors for wind turbine systems

3. March 2010

In its latest brochure, measurement technology specialist Micro-Epsilon is presenting new possibilities for displacement, profile and temperature measurement of wind turbine systems. The brochure provides details on the specific benefits associated with the use of sensors in specific applications and describes the sensor required for this. For example, highlighted are the condition monitoring possibilities that arise from the use of IR temperature sensors. Amongst other things, the thermoMETER CT sensors are used for the temperature measurement of the generator windings or for the rotor gearbox. Noticeable, abnormal temperature developments indicate a technical problem, which can then be rectified before any major repairs are required. Minimising shutdown times is therefore possible. In addition to temperature measurement, examples of displacement and profile measurement for quality assurance purposes during the manufacture of turbine components are also provided.

Sensor applications at wind-turbines


Eddy currents – magnetically controlled

2. March 2010

Due to be launched  at the Hanover Trade Show and Sensor + Test, is a new product range from Micro-Epsilon called mainSENSORs (“Magneto-inductive”). The standard MDS-40 M30 industrial version has a 40mm measuring range and an M30 cylindrical stainless steel housing. The OEM alternative, the MDS-40MK, has a miniature square plastic housing and also provides a 40mm measuring range. Other advantages of these sensors are their very compact design relative to the measuring range, as well as extremely attractive price-performance ratios.
Over many years, Micro-Epsilon  has been renowned as a specialist supplier of eddy current displacement sensors. This technology enabled the technological core of the new sensors range to be developed. The new sensors offer a combination of high speed and high resolution measurements. The sensors also benefit from extremely high basic sensitivity and temperature stability. A small permanent magnet on the measurement object is used as the target. The signal output provides 4–20mA or 2–10V DC.
In contrast to the widely used Hall Effect principle, the MDS is based on a unique method patented by Micro-Epsilon. Due to the inhouse capabilities, Micro-Epsilon is able to manufacture the complete sensor in-house as semiconductor manufacturing is not necessary. Therefore, the MDS range of sensors provide an interesting alternative to conventional displacement sensors for OEM applications, both in mechanical and plant engineering, as well as in the automotive industry and white goods.


New Inline Process Imager is a Fraction of the Cost

2. March 2010

The new thermoIMAGER TIM is an inline version of the conventional handheld thermal imagers. Included as standard is free software that enables users to both configure all the adjustable parameters of the thermoIMAGER and capture (at 100Hz full frame rate) and store images or video for play back at a later date – an important feature for R&D purposes. The camera is well suited to process control, quality and R&D applications, across a wide range of industries, including plastics, packaging, FMCG, thermoforming, automotive, paper, printing, textiles, food, chemicals & pharmaceuticals, medical engineering and machine building.

The new thermoIMAGER is an inline radiometric thermal imaging device that provides temperature images and profiles of a target area. Included as standard is free software that enables users to both configure all the adjustable parameters of the thermoIMAGER and capture (at 100Hz full frame rate) and store images or an event for play back at a later date – an important feature for R&D purposes.

Rather than a handheld thermal imaging camera, the thermoIMAGER is fixed into position in a production process or R&D laboratory to monitor the temperature profile of target materials or objects. The camera is well suited to process control, quality and R&D applications, across a wide range of industries, including plastics, packaging, FMCG, thermoforming, automotive, paper, printing, textiles, food, chemicals & pharmaceuticals, medical engineering and machine building.


Optimised Metal Strip Inspection

12. February 2010

The new system for thickness and profile inspection now provides a much larger measuring gap of 190mm, almost three times larger than its predecessor. In addition, the system can now reliably measure corrugated and vibrating metal strip Rather than using the previous point-type laser sensors, profile sensors are now installed, which measure significantly better on many different strip materials and which greatly increase the monitoring range. The system enables thickness measurements to an accuracy of 0.01mm and is used for process stabilisation, quality assurance and documentation. Due to the use of a special high-tech light barrier, edge detection for warped strips is also possible. This enables robust width measurement with maximum reliability. Individual strips can also be documented over the entire process. By replacing radiometric methods with optical measuring techniques,  the system is completely wear-free and operates free of emissions. The measuring system for thickness and profile inspection can be used for strip up to 4m wide and thicknesses between approx. 1mm and 12mm.


Displacement measurement on wind turbine rotor testers

15. January 2010

Accurate test methods are increasingly being relied on for the development of new geometrical shapes and production technologies for wind turbine rotors. Therefore, some test rigs have been developed for load tests on wind turbine rotor blades that  simulate the real loads caused by high winds and storms. Conventional rotors are currently  between 40m and 60m in length and are manufactured in a half shell sandwich design made from glass fibre reinforced plastic.
The Fraunhofer Institute IWES in Bremerhaven has developed a test rig that can be used to test rotor blades up to 70m in length. The tip of the rotor blade can be distorted by up to 10m due to mechanical loads. For this, the rotor blade is mounted horizontally in the test rig. Steel cables are routed to the rotor using guide pulleys and attached to the rotor blade at various positions either directly or via mechanical clamps.
Twelve draw-wire sensors are used on the test rig for measuring the distortion. Two sensors per traction point measure the deflection and torsion of the rotor blade. For this, the sensors are mounted on rails on the ground; the measuring wire is attached to pre-fabricated eyes on the terminals. The simple handling and the robust design of the sensors were ideal for this application. The draw-wire sensors operate with measuring ranges between 3m and 10m. The digital signal output is provided for further simulations.