4-6 Photodiode Measurements Models 2500 and 2502 User’s Manual
Table 4-2
Photodiode measurement commands
Command Description
:CALCulate[1]:FORMat <name>
:CALCulate[1]:DATA?
:CALCulate[1]:STATe <state>
:CALCulate[1]:KMATh:MBFactor <n>
:CALCulate[1]:KMATh:MMFactor <n>
:CALCulate[1]:KMATh:MUNits “<string>”
:CALCulate[1]:KMATh:DC<n>
:CALCulate[1]:KMATh:RESP<n>
:CALCulate2:FORMat <name>
:CALCulate2:DATA?
:CALCulate2:STATe <state>
:CALCulate2:KMATh:MBFactor <n>
:CALCulate2:KMATh:MMFactor <n>
:CALCulate2:KMATh:MUNits “<string>”
:CALCulate2:KMATh:DC<n>
:CALCulate2:KMATh:RESP<n>
:FORMat:ELEMents <name>
:FORMat:ELEMents:CALCulate <name>
:INIT
:OUTPut[1] <state>
:OUTPut2 <state>
:READ?
:SENSe[1]:CURRent:RANGe <n>
:SENSe[1]:CURRent:RANGe:AUTO <state>
:SENSe2:CURRent:RANGe <n>
:SENSe2:CURRent:RANGe:AUTO <state>
:SOURce[1]:VOLTage:MODE FIXed
:SOURce[1]:VOLTage:RANGe <n>
:SOURce[1]:VOLTage <n>
:SOURce2:VOLTage:MODE FIXed
:SOURce2:VOLTage:RANGe <n>
:SOURce2:VOLTage <n>
Define channel 1 math (name = MXB[1], COND[1],
POWER[1], RES[1], or OP[1]).
Request channel 1 math reading.
Enable/disable channel 1 math (state = ON or OFF).
Set channel 1 MX + B, B (offset) parameter (n = B).
Set channel 1 MX + B, M (slope) parameter (n = M).
Define Channel 1 MX + B units (string = 0 to 3-character
string).
Set channel 1 dark current (n = amps).
Set channel 1 responsivity (n = amps/watt).
Define channel 2 math (name = MXB2, COND2,
POWER2, RES2, or OP2).
Request channel 2 math reading.
Enable/disable channel 2 math (state = ON or OFF).
Set channel 2 MX + B, B (offset) parameter (n = B).
Set channel 2 MX + B, M (slope) parameter (n = M).
Define Channel 2 MX + B units (string = 0 to 3-character
string).
Set channel 2 dark current (n = amps).
Set channel 2 responsivity (n = amps/watt).
Select :READ? reading channel. (name = CURRent[1],
CURRent2, STATus or TIME).
Select CALCn:DATA? elements (name = CALCulate,
STATus or TIME).
Trigger reading.
Turn channel 1 output on or off (state = ON or OFF).
Turn channel 2 output on or off (state = ON or OFF).
Trigger and acquire reading.
Set channel 1 current measure range (n = range).
Enable/disable channel 1 auto range (state = ON or OFF).
Set channel 2 measure range (n = range).
Enable/disable channel 2 auto range (state = ON or OFF).
Select fixed sourcing mode for channel 1 source.
Select channel 1 source range (n = range, 10 or 100).
Set channel 1 source amplitude (n = volts).
Select fixed sourcing mode for channel 2 source.
Select channel 2 source range (n = range, 10 or 100).
Set channel 2 source amplitude (n = volts).
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