Millimeter-Wave Measurement Instruments and Waveguide Components

Calometric Power Meter

Calorimeter Indicator Unit Calorimeter sensor

The CPMXXE series instruments are high precision broadband Calorimetric Sensors operating in millimeter and sub-millimeter wave range on a principle of substitution of microwave power by direct current power, using an autocompensating transistor transducer. Calorimetric Sensor is supplied with Calorimetric Power Meter M1-25M (indicator block), which provides PC connection via USB interface.

Calorimetric Power Meter with Calorimetric Sensor provides accurate absolute power measurements in single mode and multimode waveguides (Metal Dielectric Waveguide) which could be a priority for terahertz physics and technology.

Sensor Model Frequency range, GHz Waveguide size Power measurement range, mW Power measurement error VSWR, max
CPM06E 33 - 50

WR - 22

0,002-20

3%+2µW

1.1*

CPM04E 50 - 75

WR - 15

0,002-20

3%+2µW

1.1

CPM03E 75 - 110

WR - 10

0,002-20 3%+2µW

1.1

CPM02E 110 - 170 WR - 06 0,002-20 3%+2µW

1.1

CPM015E 170 - 225 WR - 05 0,002-20 5%+2µW

1.1

* VSWR 1.2 max in 33-37.5 GHz frequency range;

DC parameters of Calorimetric Power Meter


Noise fluctuation (one standard deviation), µW 0.11
Zero drift,  µW / min 0.05
Nonlinearity relative to 5 mW level, % 0.14
Response time, s (98% of full scale) 30