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News about GTM and Metrology

Re-accreditation of the calibration laboratory successfully accomplished

The re-accreditation of our calibration laboratory has been completed and successfully passed. This means that we continue to have one of the few facilities in Europe where measurement devices for force, torque and voltage ratios can be calibrated. In addition, we are the world leader with the widest measurement range and lowest measurement uncertainties for multi-component transducers.

Every five years, our facility itself is put to the test as an accredited calibration laboratory: an elaborate procedure that is regulated worldwide by DIN EN ISO/IEC 17025. The standard describes the general requirements for the competence of testing and calibration laboratories, including requirements for management, technical requirements or complaint management. Accreditation is granted to laboratories that meet all the requirements of the standard and document them, provide evidence of the measuring equipment and carry out the individual calibration procedures in accordance with the standard. If all this is fulfilled, the accreditation body certifies the calibration laboratory as competent to perform the corresponding services.

Calibration for quality assurance

When it comes to calibrating measuring instruments for the industry, calibration and testing laboratories, we are a reliable partner and an internationally leading service provider in our field. Measuring instruments must deliver precise measured values at all times. To ensure this, they must be calibrated on a regular basis or reverted to the national standard. Even the smallest measurement inaccuracies can drastically affect the quality of products and processes. Possible consequences are rejects, interruptions in production, unnecessary costs and, in the worst case, recalls and claims for compensation.

Calibration therefore makes a significant contribution to quality assurance and answers the following questions: Are the measurements accurate? Are the measurements repeatable? Are the characteristics linear?

Many years of experience and a lot of pioneering spirit

Today, measuring equipment for the calibration of force transducers, torque transducers, strain gauge measuring amplifiers as well as multi-component transducers are part of the GTM laboratory. But our range of services was not that diverse from the beginning.

It all started with the accreditation for force calibration in 1993. The first accredited measuring device that went into operation was the measuring device for force transducers up to 100 kN. From then on, the calibration laboratory was steadily expanded and extended; both on own initiative and research interest, and in response to changing needs on the market. Thus, in 2003, the world's largest measuring facility for measuring torques followed for PTB, and in 2004, the DKD (German Calibration Service and predecessor of the DAkkS) then also awarded accreditation for torque and voltage ratio. Another important milestone: accreditation by the DKD in 2005 for multicomponent calibration. This was special because until then there was no calibration laboratory in the world with such an accreditation. Very recently, we have once again demonstrated our pioneering spirit with a measuring device for multi-components that is unique in the world and has now also been accredited by the DAkkS. With this measuring device, several forces and moments along different vector axes can be measured and calibrated simultaneously and fully automatically.

All accredited measuring devices are in-house developments and convince by their low measurement uncertainty. Therefore, they are also found at many state institutes and in some countries they even set the standard. In addition to international and national calibration procedures, we also use our own developed calibration procedures in our calibration laboratory, which are internationally recognized and unrivaled due to their accreditation.

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