THORLABS PM102, Руководство по эксплуатации

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© 2019 Thorlabs
3 Operating Instructions
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3.2.12 Analog Output
PM102A
The PM102A has three analog output ports with SMA output connectors: POWER, X POS, and
Y POS.
The analog output POWER, delivers a range independent voltage which is DAC controlled. The
output voltage is proportional to a configured value in V/W. This constant can be adjusted via
the OPM software or the SCPI/driver commands for custom made software. The constant can
be set in the OPM software under the Settings tab: POWER AO Responsivity. The analog sig-
nal is generated with a 16-bit DAC with an update rate of 1 kHz. The analog output voltage can
range from -0 V to +2.5 V.
The output signal is wavelength corrected and corrected regarding the sensor calibration data.
The ports X POS and Y POS deliver a signal that is proportional to the position of the light sig-
nal on the sensor. X POS delivers the x-axis signal and Y POS the y-axis signal. The analog
output voltage can range from -2.5 V to +2.5 V. The ports X POS and Y POS are soley used for
the positional information from thermal position sensors.
PM102
The PM102 has three analog outputs, POWER, X POS, and Y POS. The Analog Output ports
provide the amplified thermal sensor voltage.
POWER: The port POWER (DA-15 Pin 4) delivers a range independent voltage which is
DAC
controlled . The output voltage is proportional to a configured value in V/W. This constant can
be adjusted via the OPM software or the SCPI/driver commands for custom made software.
The constant can be set in the Thorlabs software OPM under the Settings tab: POWER AO
Responsivity. The signal of the port POWER is generated with a 16-bit DAC with an update
rate of 1 kHz. The analog output voltage can range from -0 V to +2.5 V.
X POS and Y POS deliver a range independent voltage which is DAC controlled . The signal is
proportional to the position of the light signal on the sensor. X POS delivers the x-axis signal
and Y POS the y-axis signal. The analog output voltage can range from -2.5 V to +2.5 V.
The ports X POS and Y POS are soley used for the positional information from thermal position
sensors.
3.2.13 Autonomous Operation to Analog Output
Power meters PM102 and PM102A can be run autonomously by only connecting a power sup-
ply and using analog output. In that case, no control device is required. Either one of the three
analog ports needs to be connected for autonomous operation. By choosing the respective
port, the user selects the output of the signal (POWER) or the X or Y positions ( X-POS, Y-
POS).
3.2.14 NTC Input
To monitor the temperature in a test environment, the PM102 has an NTC Input (DA-15 Pin 14)
which allows connection of an NTC thermistor. The measurement range is 0.1 – 100 k
W . The
set range R0 and the bandwidth B for the NTC thermistor can be adjusted in the OPM software
or through SCPI commands. The default settings are 10 k
W and 3988 K to directly access the
TSP-TH temperature probe. The measurement range with the PM102 is then -10 °C to 80 °
C with the TSP-TH.
Note
Connection of the NTC to the DE-9 Pin 7 of the Sensor Connector requires a resistance of 0.2
k
W
to 40 k
W
.
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