Under storage, a phenomenon known as drive level dependency (DLD) or drive level sensitivity (DLS) may appear that prevents the starting of oscillation. Limits of the best oscillators based on this type of piezoelectric materials are known. As well as we remind about various experimental set-ups, and measurement procedures used to obtain very low drive level motional parameters, we are interested in investigating different designs and topologies to ensure stable solutions. Understanding the problem of starting piezoelectric oscillators after a long storage period may help for settling optimized devices to understand origin of noise. We are not only interested in the description of phenomena from the point of view of electrical or optical schematization, but concretely in implementing solutions to resolve them and find lasting technological solutions.
The piezoaxionic effect was recently proposed to introduce a possible solution ensuring the detection of an elementary particle called axion predicted by theory. With our experience in research on the improvement and characterization of quartz oscillators and other materials allowing the propagation of acoustic waves. We are interested in contributing to the improvement of the precision of measurement means to determine if it is possible to have sufficient sensitivity for detecting effects of elementary particles which would be characteristic of dark matter. This potential effect of axions manifests through acoustic waves. We are interested in knowing the parameters which could potentially be a source of complications for this detection. This involves being able to estimate the knowledge of the accuracy and frequency stability used and the uncertainty terms which could affect the construction of an experimental device. Different piezoelectric materials are considered as candidates to help to highlight this piezoaxionic effect. We propose to present this work during the conference.
Here we investigate the improvement of the precision of measurement means to determine if it is possible to have sufficient sensitivity for detecting effects of elementary particles which would be characteristic of dark matter. A particle has been proposed and is called axion. There would be an interaction between the axions and the photons using the Primakoff effect under strong magnetic field. Radio frequencies in the range of 460 – 810 MHz could be assumed to be enough suitable for the mass of the axion, in case it could exist. It is then interesting to focus on the piezoaxionic effect. If the frequency of the axions could match the natural frequency of a normal mode bulk acoustic of a piezoelectric crystal, one would expect the piezoaxionic effect to occur. One could then rely on the piezoelectric effect to observe the variations on the resonant frequency which can be read out electrically using the best piezoelectric materials such as quartz. Through this example of development and applications in detection, we propose to decrypt this subject and to show how multidisciplinary skills are necessary to hope that small fluctuations can be detectable.
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