Measurement

Rohm has created a set of six current sense amplifiers with AEC-Q100 qualification for automotive use. They work with external shunt resistors, and there are two basic types: one (BD1423xFVJ-C) that can sense across the common-mode range of -14 to +80V and runs from 2.7 to 18V, and the other (BD1422xG-C) that can sense across -14 to +40V and runs ...

Siglent has introduced a two-channel arbitrary waveform generator series with 16bit 1Gsample/s sampling and outputs at up to 60GHz. The SDG1000X Plus series is a step up from the existing SDG1000X series, which also extends to 60MHz, but which has 14bits and 150Msample/s. Standard sample memory in the new generators is 8Mpoint. The LCD display measures 4.3inch and, as well ...

Researchers at the University of Michigan have made what is in effect a very agile ruler using a novel sub-THz radar technique, and reported it last week at the International Solid-State Circuits Conference. Its 235GHz antennas and the core active components are integrated on a single IC, and across a desktop it measures the range to a target with sub-mm ...

STMicroelectronics has introduced a precision digital current, voltage and power monitor with a an I3C bus interface. Called TSC1641, it has two 16bit ΣΔ converters at its inputs, allowing simultaneous measurement of current (LSB=2.5µV) and voltage (LSB=2mV). The measured voltage can be anywhere from 0 to 60V (65V abs max), and the two current terminals sense with either polarity across ...

For coastal and mountainous terrain, Anritsu has added an up-link interference measurement to its some of its portable 5G and LTE TDD testers. At issue are stray signals carried long distances into cells where they interfere with the TDD up-link. The company explained: For 5G networks with a coastal or mountainous terrain, RF down-link transmissions readily become subject to atmospheric ...

For monitoring X-ray doses in patients undergoing radiotherapy for gastrointestinal cancer, a group of researcher have created a prototype swallowable dosimeter capsule that also measures gut pH and temperature. “The researchers found that the dosimeter was approximately five times more accurate than standard methods for dose determination,” according to the Chinese Academy of Sciences, whose Shenzhen Institute of Advanced Technology ...

Thorlabs has announced a holographic grating spectrometer that spans 810 to 965 nm with sub-nanometre resolution. HG10 is fibre-based acquires at up to 130,000 scan/s, enabled by the USB 3.0 interface. External synchronisation is via a TTL-level trigger input. Inside, the spectrometer is based on the company’s Ganymede series of optical coherence tomography imagers. “The development of the HG10 was ...

At PCIM this week in Nuremberg, PEM has exhibiting a Rogowski current probe optimised for SiC transistors and other fast switching devices, with a -3dB bandwidth of 50MHz and a 12.5ns rise-time. Called CWTMini50HF, it has a slim (3.5mm thick) 100mm sense coil with 2kVpeak insultation. “It combines a screened Rogowski coil, providing excellent immunity to interference from fast local dV/dt ...

Renesas has introduced a battery pack monitor for long strings of cells that uses an ac-coupled bus to solve the thorny problem of passing data up and down the line. At the same time, it revealed a high-side battery protection and monitoring IC for 4S to 16S cell battery packs. RAA489204 for long strings Stackable up to 30 ICs Up ...

API and Mitutoyo have announced a partnership to distribute API’s portable dimensional metrology equipment through Mitutoyo’s worldwide network. “API really invented portable dimensional metrology, especially in the form of precise, laser measurements,” said Mitutoyo president Yoshiaki Numata. “So, for Mitutoyo, this was a great opportunity to add the most complete line of high-quality portable metrology equipment to what we can ...