Resumé: TITRE en français: "Un nouveau type d'amplificateur de précision compact pour des capteurs à jauge de contrainte" : Si la précision est importante, des grandeurs mécaniques telles que la force, le couple ou la pression sont presque exclusivement réalisées par des capteurs à jauges de contrainte. Pour exploiter le potentiel des mesures statiques, les exigences sur les amplificateurs de haute précision augmentent régulièrement. Contrairement aux capteurs, l'amélioration de la précision des amplificateurs peut aller très loin tandis que leur design est toujours plus compact. Le nouvel amplificateur se distingue par ses deux canaux indépendants (qui mesurent simultanément), chacun offrant une classe de précision de 0,0025 (25 ppm).
Abstract in English:If accuracy matters, mechanical quantities such as force, torque or pressure are almost exclusively realized by transducers, which are based on strain gauges. To exploit the potential of static measurements the demands for amplifiers with an increased accuracy steadily grow. Unlike transducers, improvement of precision of amplifiers can go very far. Still these highprecision amplifiers can be realised I a very compact size. The new amplifier introduced features two independent (simultaneously measuring) amplifier channels, each of the channels offering an accuracy class of 0.0025 (25 ppm).
New measurement approaches for mechanical quantities based on strain gauge technology offer one feature above all else: the possibility to realize smallest measurement uncertainties. This is particularly important for metrological infrastructure, i.e. realization of metrological traceability chain to support applications in aerospace or in automotive industry. Achievements toward smaller measurement uncertainties are shown by realization of a novel torque reference sensor TN with improved usability for inter-laboratory comparisons in combination with a surprisingly compact precision amplifier called Quantum MX238B.
<p class="Abstract"><span lang="EN">In cases where accuracy matters, and in metrology of mechanical quantities such as force, torque or pressure this is definitely the case, are almost exclusively realized by transducers, which are based on strain gauges. To exploit the potential of the widely used high-precision static measurements the demands on </span><span lang="EN-GB">precision amplifiers steadily grow. This paper gives exact details to further progress of the precision amplifiers used and how compact they can be realized nowadays.</span></p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.