Coherent 210 Power Meter Sensor

[bwang]

What models of sensor work with the Coherent 210 power meter? I bought a sensorless one for $11 on Ebay and am now searching for a sensor.

[lasersbee]

What models of sensor work with the Coherent 210 power meter? I bought a sensorless one for $11 on Ebay and am now searching for a sensor.

Looks like it needs one like this...

Attachment 23537

The type used in the old style Kenometers...


Jerry

[c4r0]

Check this out: http://www.natscience.com/Uwe/Forum....r-meter-sensor

Unfortunately, the thing that you bought is basically a sensitive voltmeter. The sensor is the most important and most expensive part of a power meter.

[mixedgas]

For my current 3 watt 210, its 1mV/Watt out of the sensor. The sensor contains a thermopile with a 10K potentiometer across it for calibration. There is a damping adjustment inside the meter that is tuned to a "test" head at the factory, so you need a 1/2" diameter exposed surface area to match the damping, if you build a sensor, and no, mine is not for sale.

Steve

[lasersbee]

I have a Coherent 210 Meter... it is actually the one in my post above...
The Coherent head that came with the meter has been used
for some other project. It output a tested 1uV/mW...

I have recently been able to modify one of our LaserBee Sensors
to work with our Coherent 210 Meter.
The LaserBee sensor can take ~90W/cm2 of power or almost 4 Watts
with a 4 square mm beam...


Jerry