Wireless test indicator measures blind holes

摘要

The publication's new column Inventor's Corner showcases inventions that engineers have cooked-up in their spare time. The wireless test indicator is designed to help toolmakers and lab technicians make accurate remote measurements. The idea comes from Dave Hoffman of Hagenhoff LLC, Canton, OH. The patented "Vyndicator" consists of two pieces -- a stylus (sensor) and a receiver (display). The invention works something like a dial indicator but it is far more versatile because of the detached stylus. The device has a measurement range of 0.200 in. -- five times that of a normal test indicator -- and a transmission range of 30 ft.