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.
Years ago, a popular candy advertised “The milk chocolate melts in your mouth, not in your hand.” The statement was nominally true, but only because the milk chocolate was covered with a thin candy shell. And while the chocolate center was protected, the thin candy shell could melt in your hand leaving a sticky, rainbow-colored mess. If melted candy was your issue, the more meaningful question would have been “Will any part of this candy melt in my hand?” The same logic allows many different cars to be advertised as “America’s Best-Selling…” And if you Google “World’s Strongest Man” you’ll get over 80,000,000 hits, and they’re far from agreement on who owns that title.