To determine blood oxygen (arterial blood oxygen saturation (SpO2)) and pulse rate, many biosensors use the reflectance of red and infrared (and sometimes green) light. Based on photoplethysmography (PPG), an optical technique that measures blood volume variations, dual-wavelength PPG pulse oximeters noninvasively measure/calculate the arterial oxygen saturation (SpO2). An oximeter transmits radiation at a known […]
Medical
AC-DC power supplies meet safety and approval standards for medical and industrial apps
Advanced Energy Industries, Inc. introduced two new ranges of AC-DC power supplies with industry-leading power densities for critical medical and industrial equipment. The SL Power NGB800 800 W and NGB1200 1200 W families are optimized to address the performance, power, size, reliability, and compliance requirements of medical and industrial applications. The power supplies combine compact […]
Computer-on-modules boost performance with new processors
congatec announces the availability of COM-HPC and COM Express Computer-on-Modules based on high-end 13th Gen Intel Core processors in BGA assembly. congatec expects series production of OEM designs based on these new modules to ramp up quickly and massively as the new processors with long-life availability offer vast improvements in many features yet are fully […]
Precision thin-film resistors offer ±0.01% tolerances, ±2ppm TCRs
With the proliferation of electronics in nearly every market sector, there is an increasing need for precision resistors. For markets such as medical instrumentation and control, industrial and automotive controls, communications, and test & measurement, these precision resistors must maintain electrical and environmental stability long term. Stackpole’s RNCF series of precision thin film resistors meet these […]
What is dosimetry? Pt 1
In the broadest sense, dosimetry is done to measure and prevent or at least identify problems from significant or long-term exposure to harmful situations. More specifically, dosimetry refers to the study, measurement, method of measurement or instrument of measurement of radiation dose. Dosimetry often involves wearing a personnel badge, a dosimeter, that measures and monitors […]
Linux platform supports RISC-V embedded development
Siemens Digital Industries Software announced that its Sokol Flex OS software now supports RISC-V embedded development with the availability of one of the industry’s first commercially supported, extensible, and customizable Linux platforms for the RISC-V architecture. Based on the popular, open-source Yocto Project industry standard, Siemens‘ Sokol Flex OS helps embedded developers create customized, Linux-based […]
What are MEMS relays good for?
MEMS relays (also called MEMS switches) have high isolation when open and very low insertion loss or resistance when closed; they can handle signals from DC to multi-GHz, operate with very little power, and their micrometer size means that many can be packed into a small space. These attributes make MEMS relays well-suited for 5G […]
2×4-in 250-W industrial/medical power supplies can be convection or conduction cooled
TDK Corporation announces the introduction of the 250W-rated TDK-Lambda brand CUS250M series of power supplies in the industry standard 2” x 4” footprint. The product’s mechanical configurations enable both convection and conduction cooling through the product’s baseplate to provide silent cooling. The CUS250M is certified to the industrial IEC 62368-1 and medical IEC 60601-1 standard […]
Documentation package for embedded Linux simplifies regulatory approval for medical device OEMs
Siemens Digital Industries Software introduced the first software documentation package developed to help original equipment manufacturers (OEMs) streamline compliance with stringent standards for medical device manufacturers deploying either Siemens’ embedded Linux distributions, Sokol Flex OS software, or Sokol Omni OS software. The open-source Linux operating system (OS) is the world’s most widely used embedded OS […]
New products from Electronica 2022
Semiconductors and modules graced the halls of Electronica 2022. Here are some of those announced at this year’s event.