NIST has developed a new device called the Electronic NIST Torque Realizer (ENTR) that can measure torque without needing physical mass and length standards. This device uses magnetic fields and electronic measurements to generate and measure torque, making it more precise and easier to calibrate than traditional methods.
ENTR can measure torque with an uncertainty of 0.1% or less, compared to the 0.25% uncertainty of traditional strain-gauge torque transducers. This makes it suitable for calibrating torque screwdrivers and wrenches used in various applications.
The technology behind ENTR could enable advances in precision design, manufacturing, and nanotechnology. The device was developed by a team of researchers at NIST and the U.S. Air Force.
Source: https://www.nist.gov/noac/technology/mass-force-and-acceleration/torque-realization
Keywords: quantum, sensing, metrology
