The RM9 with Chopper radiometer system is a sensor and optical beam chopper combination for measuring the power of very low level CW or quasi CW light sources. The RM9 sensor has a pyroelectric element to measure a wide dynamic range of radiation, from <100 nW to 100 mW. It has an 8 mm aperture and covers the spectral range from 0.15 to 12 µm. The system comes with the RMC1 chopper that is placed between the source and the RM9 sensor.
The chopper should be mounted with the side marked "THIS SIDE TOWARD SENSOR" facing the sensor.
- Pyroelectric sensor with 0.15-12 µm spectral range
- 100 nW to 100 mW power measurement range
- Chopper and lock in amplifier for lowest noise and drift
- 8 mm diameter aperture See All Features
Software
Full support available for the RM9 sensor with the Centauri, Vega, Nova II, Juno, Juno+, Juno-RS, EA-1, StarLite and StarBright and with the StarLab application.
There is limited support for the RM9 sensor with the older LaserStar, Pulsar, Quasar and Nova.
To upgrade the meters below to the version that fully supports RM9:
StarBright meters (rev 1.18 and higher) press here
Nova II / Vega meters (rev 2.44 and higher) press here
StarLite meter (rev 1.26 and higher) press here
Juno interface (rev 1.31 and higher) press here
Juno+ press here
Juno-RS press here
EA-1 press here
Centauri press here
Features
Measuring Laser Power Below the Noise Floor with a Lock-In Amplifier
Measuring optical signals in the femtowatt (10-15) to nanowatt (10-9) range can be very challenging. This video explains how Lock-In Amplifiers can help make these measurements possible.
Measure Very Low powers Over a Very Broad Spectrum with the RM9 Radiometer
The RM9 system measures powers down to 100 nW over a very broad spectral range, from UV to far IR. This video introduces you to the RM9, and shows you how to use it.
Accessories
P Polarity Power Supply/Charger
Damage Threshold Test Plates (Metallic)
5m Molded Cable
Resources
Data Sheets
Low Noise Lock In Power Sensors 300fW to 100mW Datasheet(263.5 kB, PDF) Absorption and Damage Graph(220.6 kB, PDF)
Catalogs
Power Sensors Catalog(11.2 MB, PDF) Laser Power & Energy Measurement and Laser Beam Analysis Catalog(27.5 MB, PDF)
Drawings & CAD
RM9 with Chopper Drawing(264.2 kB, PDF)



