Technical note: Renishaw's strain gauge probing technology (pdf)

Since the invention of the touch trigger probe by Sir David McMurtry in 1972, probing has become a vital component of automated production processes on machine tools. This simple mechanism, employing a kinematic location to retain a stylus in a highly repeatable manner, has formed the basis of many Renishaw probes for over 30 years. Renishaw kinematic touch trigger probes continue to serve the manufacturing industry well, remain the markets best selling probing products by far, and are the first choice of the majority of end users and machine tool builders alike. The level of measuring performance and reliability of these probes must not be understated.