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High precision test and measurement instrumentation June 20, 2014 Zygo Corporation [64] Non-contact optical metrology Aug. 5, 2014 AMPTEK, Inc. [65] X-ray detectors using x-ray fluorescence (XRF) Aug. 5, 2014 Luphos GmbH [66] Non-contact metrology technology May 8, 2015 Global Tubes [67] Small-diameter precision tubing July 7, 2015
The addition of a high-speed switching system to a test system's configuration allows for faster, more cost-effective testing of multiple devices, and is designed to reduce both test errors and costs. Designing a test system's switching configuration requires an understanding of the signals to be switched and the tests to be performed, as well ...
A measurement system analysis (MSA) is a thorough assessment of a measurement process, and typically includes a specially designed experiment that seeks to identify the components of variation in that measurement process. Just as processes that produce a product may vary, the process of obtaining measurements and data may also have variation ...
Industrial CT scanners use X-rays to image an object from many angles, building up a 3D image to compare to a specification. [6] CT scans can be used to analyse the internal geometry of parts because the X-rays penetrate the object being scanned. Higher resolution CT scans can also check for cavities, cracks, and other undesirable features ...
Accuracy is also used as a statistical measure of how well a binary classification test correctly identifies or excludes a condition. That is, the accuracy is the proportion of correct predictions (both true positives and true negatives) among the total number of cases examined. [10] As such, it compares estimates of pre- and post-test probability.
Probing systems for microscale metrology applications are another emerging area. [6] [7] There are several commercially available coordinate measuring machines that have a microprobe integrated into the system, several specialty systems at government laboratories, and any number of university-built metrology platforms for microscale metrology ...
The operational success of a "Test Shop" program set up at March AFB, California, on 15 September 1957, led to the establishment of the base-level Precision Measurement Equipment Laboratories providing the Air Force with a complete calibration system that could handle the increasingly stringent measurement needs of the new missile and aircraft ...
In this system, four palms or three hands measured one foot; ten hands equaled one meter. [ 2 ] These standards were used to measure and define property and were regulated by law for several purposes, such as taxation, infrastructure, and more, such as buildings and fields were adopted by the Greeks, Romans, and Persians as legal standards and ...