Sensors are an essential part of a metrology system, and there are several key factors that inform a buyer’s choice. These include ease of use, accuracy, speed and cost. Comparing the options can involve both analysis of features and actual demonstration of capabilities, but to get meaningful information for either you have to ask the right questions.

It is generally agreed that engineering is about tradeoffs, and that has always been particularly true in regard to measurement machines. There are several types of measurement, and higher performance in one area generally meant less capability, or none, in other areas. 

There’s a place in the world for high-priced, top-of-the line systems, and there are applications for which nothing else will do.