The Use and Calibration of the Kern ME5000 Mekometer - SLAC ...
The Use and Calibration of the Kern ME5000 Mekometer - SLAC ...
The Use and Calibration of the Kern ME5000 Mekometer - SLAC ...
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<strong>ME5000</strong> Operation<br />
Al = wavelength for frequency Ft<br />
D = approx. distance<br />
AiE = addition constant<br />
D = rnlhl-ADC (13)<br />
Short distance measurements below 20 m form <strong>the</strong> bulk <strong>of</strong> <strong>the</strong> work performed with <strong>the</strong> <strong>ME5000</strong> at<br />
particle accelerators. <strong>The</strong> majority <strong>of</strong> <strong>the</strong>se distances are already known to within a millimeter or so. <strong>The</strong><br />
<strong>ME5000</strong> program provides a feature to enter a pre-known distance. This distance must be sufficiently<br />
close to <strong>the</strong> actual distance that <strong>the</strong> wobbler kq~ency falls over <strong>the</strong> zero point during <strong>the</strong> coarse search<br />
(see Fig. 8 <strong>and</strong> description). <strong>The</strong> entry <strong>of</strong> a valid preknown distance produces a considerable saving in<br />
time.<br />
16<br />
(11)<br />
(12)