Post by Professor Lake Shore on Jan 31, 2017 17:57:02 GMT -5
How does the Moment AutoRange function work?
During an experiment, it adjusts to the best range of sensitivity automatically. Without Moment AutoRange turned on, the VSM will use the moment range specified with the experiment. With AutoRange enabled, the system picks the range which is best to measure the sample, automatically switching ranges as needed during an experiment. For experiments where you need to measure on a broad range of sensitivity, enable Moment AutoRange. In Point by Point Acquisition Mode, operation is different from Moment AutoRange enabled while operating in Continuous Mode. When operating a VSM in Continuous Mode, a modified version of Moment AutoRange is used at the beginning of a Continuous Mode experiment, and the applied field is ramped to the maximum field selected. While the sample is at the maximum field, an appropriate moment range is determined. That moment range is used for the rest of the experiment. The experiment then continues normally. The AutoRange mode of operation is particularly useful in experiments that are used in profiles where moment magnitudes are likely to change. However, please note: Do not use Moment AutoRange with Continuous Mode in experiments where the initial excursion to high applied field will interfere with the experimental data (such as when performing an initial magnetization curve measurement).