LED Measurement System
User Manual
16
Ossila Limited © 2022
9.3.3
Characterisation Settings
Figure 9.5.
Characterisation settings.
(I)
Measure Luminance
•
Set whether measure
ments of the device’s light output will be performed.
I.
If set to ‘Off’,
the system will not check that the lid is closed before measuring.
(II)
Start Voltage
•
Set the voltage in volts at which to start the current-voltage measurement.
I.
This can be set between -10 V and +10 V.
(III)
End Voltage
•
Set the voltage in volts at which to end the current-voltage measurement.
I.
This can be set between -10 V and +10 V.
(IV)
Voltage Increment
•
Set the step size in volts for changing the voltage during current-voltage measurement.
(V)
Voltage Settle Time
•
Set the time in seconds between applying a voltage and measuring the current.
I.
The minimum value is dependant on the selected lux range: 0 s for 100 klx, 0.05 s
for 5000 lx, and 0.4 s for 500 lx.
(VI)
Hysteresis I-V
•
This option performs a reverse current-voltage measurement after the forward current-
voltage measurement has completed.
I.
This reverses the set start and end voltages and uses the same voltage increment
and settle time as the forward measurement.
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