Test & Measurement

An Alternative to Check Fixtures

Discover how the world’s leading manufacturers are using portable CMM’s to eliminate the need for check fixtures – significantly reducing storage, maintenance and rework costs. Additionally, learn how the portable CMM solution yields actionable, quantifiable data that manufacturers can use in a six sigma and/or lean manufacturing environment to improve their products and become more profitable.

Posted in: Test & Measurement, White Papers

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An Introduction to Stress Analysis and Transducer Design Using Strain Gauges

The usual way of assessing structural parts of machines, buildings, vehicles, aircraft, etc. is based on strength of material calculations.

Posted in: Test & Measurement, White Papers

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Wind Tunnel Tests Support Improved Design of B61-12 Bomb

Sandia National Laboratories has finished testing a full-scale mock unit representing the aerodynamic characteristics of the B61-12 gravity bomb in a wind tunnel. The tests on the mock-up were done to establish the configuration that will deliver the necessary spin motion of the bomb during freefall and are an important milestone in the Life Extension Program to deliver a new version of the aging system.

Posted in: Motion Control, Motors & Drives, Test & Measurement, Aerospace, Defense, News

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Testing Composite Structures for Stronger Bridges

The J. Lohr Structures Laboratory at South Dakota State University helps companies develop new materials and products — self-consolidating concrete columns and pre-stress concrete bridge girders — that bridge a physical gap. Over the past decade, researchers have conducted structural testing on large- and full-scale test specimens for private companies and government entities.

Posted in: Materials, Composites, Test & Measurement, Transportation, News

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Making Waste History: 3D Measurement Technology Bumps Bottom-line Growth

Reducing downtime, eliminating costly scrap and generally becoming more efficient have become necessities in today’s competitive marketplace. That’s where 3D technology comes in. Robust, portable 3D measurement tools allow companies to quickly and easily verify product quality and collect comprehensive high-resolution data. This white paper uncovers the secret to understanding the technology that’s improving the way companies do business.

Posted in: Test & Measurement, White Papers

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Processing COSMIC/FORMOSAT-3 Data for Slant Total Electron Content Measurements

New leveling algorithm uses GPS multipath signals to provide an improved leveling of ionospheric measurements. NASA’s Jet Propulsion Laboratory, Pasadena, California The COSMIC (Constellation Observing System for Meteorology, Ionosphere, and Climate) mission has GPS (Global Positioning System) radio occultation dual-band receivers onboard. The received signals slice through the ionosphere, layer by layer, in much the same way as peeling off the layers of an onion. In order to use GPS signals for ionospheric measurements, they must be edited, phase leveled, and the hardware biases removed. The leveling algorithm used for ground-based GPS receivers is inadequate for space-based receivers due to substantially different multipath characteristics.

Posted in: Test & Measurement, Briefs

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Durability Analysis of a Vehicle by Virtual Test Model (VTM)

For accurate prediction of fatigue failure in structural components, accurate prediction of dynamic force histories is required. Ashok Leyland Ltd., Chennai, India The criterion for structural failure must be based on failure modes of the component being designed. If the component is to withstand millions of cycles of load application, criterion for fatigue failure must be used. Fatigue damage caused by repeated dynamic loads depends on the number of cycles and the frequency of significant stresses. Therefore, for accurate prediction of fatigue failure in structural components, accurate prediction of dynamic force histories is required.

Posted in: Test & Measurement, Briefs

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