Lake Shore Cryotronics Measure Ready M91 FastHall, Руководство пользователя

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128 c
HAPTER
4: Computer Interface Operation
MeasureReady™ M91 FastHall™ Measurement Controller
MAXimum = 300 s
Data type is
Number
<sampleThickness> Thickness of the sample in meters.
0 to 10 e-3 m
DEFault = 0 m
Data type is
Number
<minimumSnr> The desired signal to noise ratio of the measurement
calculated using average resistivity / error of mean 1 - 1000,
or INFinity (9.9 e+37).
DEFault = 30
Data type is
Number
<samplingTime> The sampling time, in seconds, which measurements will be
averaged over to get one sample.
MINimum = 0.010 ms
MAXimum = 1 s
DEFault = 1/60 s
Data type is
Number
Example RESistivity:HBAR:STARt CURRent,10e-6,10e-6,AUTO,100e-3,1.5,1E-3,2E-3,30,
2.4e-3,0,30
RESistivity:RESet
Summary Resets the measurement to a not run state, canceling any running measurement.
Command Format RESistivity:RESet
Example RESistivity:RESET
RESistivity:RESult:JSON:ALL:SUBstring?
Summary Retrieves a substring of the last run resistivity measurement results, serialized as
JSON.
Query Format RESistivity:RESult:JSON:ALL:SUBstring? <startIndex>,<length>
Parameters <startIndex> The substring starting index, zero based.
Data type is
NR1
<length> The number of characters to return.
Data type is
NR1
Returns Substring of the JSON serialized resistivity measurement result.
Data type is
NAMED
Examples
Query RESistivity:RESult:JSON:ALL:SUBstring? 1
Query response
{"Setup":{"ExcitationType":1,"ExcitationVa
RESistivity:RESult:JSON:ALL?
Summary Retrieves all of the results of the last run resistivity measurement, serialized as JSON,
including raw samples. Van der Pauw results are shown in this example.
Query Format RESistivity:RESult:JSON:ALL? <pretty>
Parameters <pretty> Optional, pretty format JSON response. Defaults to False.
Data type is
bool
Returns JSON serialized resistivity measurement result
Data type is
Named
Examples
Query RESistivity:RESult:JSON:ALL? 1
Query response
{
"Setup": {
"ExcitationType": 1,
"ExcitationValue": 1E-05,
"ExcitationAutoRange": false,
"ExcitationRange": 1E-05,