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====== Piezo Valves ======

We recently purchased a piezo-valve at Oxford Applied Reserach and started tests at the\\
dedicated gauge calibration chamer of the UHV-department. A first characteristic of the\\
piezo valve was recorded with three different gauges independently. The valve was hooked\\
to a nitrogen supply with 1750 mbar pressure. The work was done in collaboration with the\\
UHV-department, in particular with Marc Wengenroth. (//[[Frank.Becker@gsi.de|Frank]]//)


===== Update - Power Supply =====

It was shown that the orignial Oxford Applied PLV-1000 pulser is not suitable for any\\
pulsed operation due to several design issues. There was a workarround provided by the\\
company to bypass the controller-bord. Meanwhile a GSI homemade solution was developed,\\
based on a HV-Behlke switch with even better results. First data can be found here:\\

{{:fair-rnd:first_test_of_piezo-supplies.ppt|}}\\



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{{:fair-rnd:characteristic-plv-ba_small.png|}}

{{:fair-rnd:ba-calibration_small.png|}}

{{:fair-rnd:characteristic-plv-ba-calibrated_small.png|}}

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