R&S®NRP110T Thermal Power Sensor

300 nW to 100 mW, DC to 110 GHz

Functions and performance features
  • Fully characterized power sensors
  • Minimizing measurement uncertainty
  • Intelligent averaging function minimizes measurement time
  • Versatile measurement functions
  • USBTMC for easy system integration
  • Built-in trigger I/O port
  • Sensor status at a glance with status LED
  • Detachable cables for flexible operation

The power sensors come with various, detachable cables for connection to diverse display units. A screw connection is provided on the sensor end to prevent accidental loosening of the cable.

The R&S®NRP-ZKU USB interface cable can be used to connect a power sensor to a laptop/PC via the USB interface. This is an extremely space-saving and also costefficient solution that does not require a base unit. Two software tools – R&S®Power Viewer Plus and R&S®NRPV virtual power meter – are available to simplify sensor operation from a laptop/PC. These tools support all measurement functions implemented in the sensors.

Multiple options to operate the R&S®NRPxxS/SN, R&S®NRPxxT/TN and R&S®NRPxxA/AN power sensors

The R&S®NRP-ZK6 interface cable is intended for operating a power sensor on the R&S®NRP2 base unit. It can also be used for connecting the power sensor to diverse Rohde & Schwarz signal generators and signal and spectrum analyzers to enhance these instruments with a highperformance power meter.

Intelligent, LAN enabled power measurements
  • Each sensor available as LAN model
  • Remote monitoring via LAN over any distance

The LAN power sensors are ideal for remote monitoring applications, e.g. for satellite systems or particle accelerators, where sensors need to be placed at different points in the system. The LAN interface makes it easy to overcome large distances between the various test points and the control center.

Simultaneous, location-independent remote monitoring of multiple R&S®NRPxxSN/TN/AN power sensors using a web browser
  • Power supply via Power over Ethernet (PoE)
  • Built-in web GUI
R&S®NRPxxT(N) thermal power sensors
  • Outstanding performance for reference applications

Thermal power sensors are especially used for complex measurement tasks where highest accuracy counts. They tolerate any type of modulation. To improve measurement accuracy, the hardware of the R&S®NRPxxT(N) thermal power sensors is designed to reduce measurement noise to a minimum and to make the sensor immune to thermal environmental effects. To achieve stable measurement results, the temperature in the thermal test cell must correspond to the applied power. When the power is increased, the measurement cell of the R&S®NRPxxT(N) thermal power sensors quickly attains a stable temperature. When the power level is decreased, the excess heat is dissipated extremely quickly. Thermal power sensors from Rohde & Schwarz are able to measure three times faster than comparable solutions on the market with triggered measurements and > 500 measurements/s in buffered mode – with top accuracy.

The R&S®NRPxxT(N) thermal power sensors feature an unparalleled linearity of 0.007 dB (0.16 %) up to 67 GHz and 0.010 dB (0.23 %) between 67 GHz and 110 GHz, making them the ideal choice for performing relative measurements.

These sensor characteristics are particularly beneficial in reference applications and calibration labs.

  • Excellent impedance matching

To a large extent, measurement uncertainty results from multiple reflections at the source and power sensor caused by mismatch. To minimize these reflections, all thermal power sensors in the R&S®NRP family are excellently matched up to high frequencies, reducing measurement uncertainty.

  • Sophisticated connector concept

Thanks to the innovative connector design, the sensor can be easily screw-connected to the signal source to be measured. A ball bearing in the coupling nut ensures that only the coupling nut has to be turned to tighten the sensor. The sensor body stays fixed in the required position. Contrary to conventional connecting screws, the outer conductors of the sensor and DUT are not turned relative to each other and so their mating surfaces do not rub together. This reduces wear and enhances reproducibility of measurements. The connector concept contributes to high measurement accuracy.

  • Internal calibration test

Rohde & Schwarz has implemented a special verification function in the R&S®NRPxxT(N) sensors. This function covers all essential components of the signal path. Using a test routine, the sensor’s response to a highly stable applied DC power is measured and compared against the value stored during the previous calibration. The result provides information about the functionality and accuracy of the power sensor. Two additional advantages: The power sensor can remain on site during verification, and verification can even be performed while another measurement is carried out.

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