IsoVu isolated current probes from Tektronix isolate oscilloscopes from circuits used for EVs, motors, and power converters. Trying to make shunt-based current measurements with a typical oscilloscope probe is essentially impossible. That’s because one side of the probe connects to ground through the instrument. Using an ungrounded power cord is anything but safe. Differential probes […]
Sensing
How to determine noise figure: part 2
The relationship between noise and temperature prompted a precursor of the IEEE to promulgate an alternative definition of noise figure in 1959. In part 1 of this series, we described the work of the Danish-American radio engineer Harald Friis, who described noise factor F of a device or system as the ratio of the input-power […]
System tests aircraft VMS using HIL
The Vehicle Management System test platform from Bloomy Controls lets you test aircraft VMS for electric, fueled, commercial, military, rotary, fixed-wing, piloted, and unpiloted aircraft.
15 W PXI programmable resistor modules simulate sensors
These modules let you perform HIL testing for industrial, automotive, medial and other products.
Data-acquisition recorder gets 1500 VDC module
B+K precision adds a 4-channel, ±1500 VDC input module to its DAS1800 data recorder. Today’s electric vehicles operate at voltages approaching 1000 VDC, engineers need to monitor and record those voltages during tests. to that end, B+K Precision has added the D18-HVM4 high-voltage, 4-channel input module to its DAS1800 modular data recorder. The D18-HVM4 adds […]
OFC 2024: Test equipment
Before those 800G links can operate, they need testing. San Diego — The 2024 Optical Fiber Communications Conference (OFC) took place here from March 25 to 28. While companies highlighting their optical transceiver modules, semiconductors, and network equipment all touted how they support AI and data centers, none of that happens without test equipment. Optical […]
Measure RF power from 25 MHz to 1 GHz with your laptop
Anritsu Company announces the launch of their new inline power sensor MA24103A which is designed to measure accurate Peak and True-RMS average power measurements from 25 MHz to 1 GHz and 2 mW to 150 W power range. Several applications demand accurate peak and average power measurements well below the frequency range of 1 GHz. […]
Review: Electronic bug and hidden camera detectors
Do you want assurance that cameras embedded in everyday devices don’t spy on you? Then you should check for cameras, SD card slots, and Wi-Fi-connections. We reviewed two devices that help you find those lurking spies. While discovering a hidden camera in an Airbnb, VRBO, or hotel is rare, there have been reports of travelers […]
How to use remote sensing for DC programmable power supplies
In this FAQ, you’ll learn how to know if your test application needs sensing and how to properly wire a power supply to a load. Calibrating certain sensing circuits, such as those used in electric vehicles (EVs), is critical to get right. An inaccurate calibration of an automotive battery monitoring circuit could, for example, allow […]
High-speed digitizers add pulse generation
After the successful introduction of the Digital Pulse Generator (DPG) option for its medium-speed products, Spectrum Instrumentation has now added the same feature to its ultrafast digitizers (with up to 10 GS/s speed) and Arbitrary Waveform Generators. Available for the entire product line, the low-cost $325 option adds three to four independent digital sources for […]
