Calipers are an integral tool for many applications, yet they’re a tool that likely doesn’t garner much reflection. Whether you’ve been using them for years or are investing in them for the first time, here are the ins and outs of caliper design and use that you’ll want to keep in mind.

There is a long-standing practice in the computer aided inspection industry that includes CMMs to report in-tolerance values in green and out-of-tolerance values in red.

Screw thread inserts (STI) require the threaded hole to be inspected prior to inserting the threaded insert or coil. The dimensions and tolerances for the gages used to inspect these threads have been a bit confusing over the past 30 years. 

For industries that regularly perform large-scale measurements, laser trackers offer accurate 3D measurements collected by a single operator. 

All the buzz these days is about laser micrometers and vision systems. If you visit a tradeshow or get any online advertisement, many companies are promoting these measuring methods.

It seems that everyone is interested in noncontact gaging these days. Laser scanners, structured light, confocal chromatic sensors, and CCD cameras have all made significant advances in the last decade, leaving us to wonder if this century old technology is still useful today.

Demand for accurate parts delivered on tight schedules is increasing. To keep pace, technology is continually advancing, enabling manufacturers to do more in the same amount of time.

For most processes, we have a choice of measurement options that vary with cost. Ideally, we seek the most accurate measurement at the lowest cost with the expectation that the result will be satisfactory. When measurements are critical to operations, we should validate these assumptions.

The COVID-19 pandemic in late 2019 and most of 2020 was unprecedented, and like all organizations ASQ was forced to take necessary precautions and make difficult decisions. Sadly this included the cancellation of the World Conference on Quality Improvement (WCQI), which had been scheduled for May 4-6 in Columbus, Ohio

Looking back at my quality career since 1984, I remember contributing to a quality manual of a Motorola Division in 1987-88 for ISO 9001 certification.