The LSPM Triple High-Speed Power Meter is a three channel, high speed, high accuracy and high dynamic range RF Power Meter. Compensation of linearity, frequency and an actively controlled power sensor temperature guarantee accurate measurements from less than -75 dBm to at least +12 dBm. A dynamic range of >80 dB is achieved for many frequencies.
The LSPM RF Power Meter’s high sampling rate allows for high resolution time-domain signal analysis. The Power Meter can be synchronized with signal generators in order to realize high resolution pulse analysis.
LSPM High-Speed Power RF Meters can be combined with LUMILOOP’s LSProbe E-Field Probes to accelerate standard EMC measurements by a factor of more than 100 over traditional setups.
Features of LSPM
Frequency range from 9 kHz – 26.5 (40) GHz
Guarantee accurate measurements from less than -75 dBm to at least +12 dBm
Dynamic range of >80 dB for many frequencies
Compensation of linearity and frequency
Actively controlled power sensor temperature
1 / 2 / 3 Channels available
Advantages
High sampling rate allows for high resolution time-domain signal analysis
Synchronize with signal generators to realize high resolution pulse analysis
Accelerates standard EMC measurements by factor 100 !
LSPM Test Automation Integration
Rohde & Schwarz – ELEKTRA
Rohde & Schwarz – EMC32 – Version 10.0
Nexio – BAT-EMC
AR – Emcware
TDK RF Solutions – Radiated Immunity Lab
Toyo – IM5CS – Conducted Immunity for IEC 61000-4-6 and BCI for Automotive
6 models, 1 to ∞ channels
The classic RF power meter
The LSPM 1.0 covers a frequency range from 9 kHz to 8.2 GHz. The LSPM 2.0covers a frequency range from 9 kHz to 26.5 GHz. Both power meters are available with 3, 2 or 1 channel. Multiple LSPM devices can be hardware synchronized to create measurement systems with virtually unlimited number of power meter channels. The synchronization can be extended to LSProbe systems.
Both, the LSPM 1.0 and the LSPM 2.0 model, are also available with rearward connectors. This helps for a better fit and integration in your 19″ rack.
LSPM 2.0 rearward connector front view
LSPM 2.0 rearward connector back view
LSPM + rearward connectors example of built-time option
19″ Rack Integration
The RF Power Meters can be used as stand-alone device or integrated in a 19″ rack via front plates. This flexibility allows for the optimum fit to your measurement needs and lab space available.
19″ Front Panel, 2x LSPM Power Meter, Part No. 3025
19″ Front Panel, 2x Computer Interface CI-250 and 1x LSPM Power Meter, Part No. 202319″ Rack Mount Kit, 1x LSPM+ Power Meter and blind panel, Part No. 3029
LSPM Services
Power Meter Calibration
All LUMILOOP RF Power Meters use manufacturer calibration data as well as optional external accredited calibration for obtaining accurate power values. We offer the all-round carefree service of accredited calibration acc. to ISO 17025. This includes checking your measuring equipment and handling the accredited calibration. Please click here to learn more about our calibration service.
The LUMILOOP RF Power Meters are integrated in many third party EMC test automation software. In-house EMC software can easily talk to the devices via well-documented SCPI commands. This makes the integration into your lab surroundings as easy as pie!
Continuous & Pulsed RF Power Measurements
The high-speed RF Power Meters enable continuous RF power measurements with high resolution, high speed and low noise. The high speed gains higher accuracy by averaging. The Power Meters are not limited to the acquisition of quasi-static power levels. With the sampling rate of 2 MSamples/s, LUMILOOP’s Power Meters are able to measure rapidly changing RF signals. The LSPM’s large dynamic range and fast pulse response make it ideally suited for the analysis of pulsed signals and sweep measurements.
Triggered Power Measurements
Triggered power measurements allow the user to take full advantage of the LSPM’s exceptionally high-speed measurements. Waveform acquisition can be triggered by software, by hardware (BNC trigger input) or a channel’s power level with a set threshold. The trigger system has a built-in dead-time of 100 μs, i.e., it can process up to 10,000 events per second.
LSPM GUI radar tab
Sweep Measurements
The LSPM Power Meters support the evaluation of a power waveform containing a level or frequency sweep, thus enabling sped-up measurements. For sweep measurements the acquired waveform typically contains multiple sections of equal size, where each section is characterized by constant measurement conditions. Most commonly, the frequency setting of a setup is altered in a step-wise manner in order to measure the frequency-dependent power of a setup under test. In this case, each section of the power waveform will have a different, constant frequency associated with it. Sweep measurements return the averaged power value for each section of the waveform. Dead-times at the beginning and end of each section may be applied to account for the setting characteristics of the setup under test. Due to the 2 MSample/s sampling rate of the LSPM Power Meters, waveform sections may be shorter than a millisecond, enabling the evaluation of more than a thousand distinct frequencies per second. This method is much faster than setting the frequencies individually and measuring power values via multiple discrete queries.
Power Statistics
Two types of power statistics are available for LUMILOOP RF Power Meters: continuous statistics and triggered statistics based on acquired wave forms. Continuous statistics evaluate all measured power values from the time that statistics collection is enabled to the time that a statistics snapshot is created. Continuous statistics are collected in the background and can be performed over arbitrary periods of time. Triggered statistics evaluate only power values of wave forms in memory. All SCPI commands of the statistics subsystem are available for both continuous and triggered collected and triggered power values.
LSPM GUI continuous statistics
Stream Recording
The LSPM Power Meters support recording data at the power meter’s full sampling rate for virtually unlimited duration of time. The recording time is only limited by the disk space available.
Virtual Power Meters
The LUMILOOP TCP Server is capable of instantiating virtual power meters including the simulation of arbitrary power patterns. Virtual power meters can replace physical meters and signal generators during measurement setup, feature demonstration, third party EMC software development and off-line signal analysis, including setups using multiple power meters. Virtual power meters support all operating modes. Triggering is supported with the exception of external trigger input and output. Virtual power meters support the collection of continuous statistics.
IEC Testing – Selected International Standards
IEC 61000-4-3
Electromagnetic compatibility (EMC) – Part 4-3 : Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-21
Electromagnetic compatibility (EMC) – Part 4-21: Testing and measurement techniques – Reverberation chamber test methods
ISO 11452-4
Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 4: Harness excitation methods / BCI Tests
ISO 11452-9
Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 9: Portable transmitters
