Consisting of an encoder or potentiometer and a wire that pays off a drum, a cable extension transducer provides inexpensive measuring over long distances because its wire needs no guidance to follow a straight line-only an attachment at the working end. Also called draw wire sensors, string pots, even yo-yo sensors, the devices can be installed without much fussing over alignments. They are built to withstand extreme environments, such as paper mills, or can be furnished as instrument grade styles that are at home in a lab.
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
Ear-based heart-rate monitoring gained momentum recently, as sensor maker Valencell Inc. announced it has licensed its biometric earpiece technology to Samsung Electronics Co. Ltd for use in so-called “hearable devices.”
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