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 […]
What kind of growth is expected in 3D sensing?
According to the report, “3D Sensor Market by Type” the global 3D sensor market is expected to grow from USD 2.9 billion in 2020 to USD 10.0 billion by 2025, at a compound annual growth rate (CAGR) of 27.9%. The market researchers acknowledge that one of the main driving factors of 3D sensor market is […]
Apple acquires Drive.ai as self-driving car drama continues
Drive.ai had shut down, but Apple rode to the rescue, reviving the prospects for both Drive.ai’s technology and workers and its own self-driving car research.
For want of a screw: Why U.S. manufacturing jobs matter
Leland Teschler, Executive Editor [email protected] On Twitter @ DW_LeeTeschler The N.Y. Times grabbed a lot of attention recently when it published an article about Apple’s travails trying to source a tiny screw in the U.S. for its Mac computer. According to the report Apple could get vast quantities of custom screws in China on short…