|Power supplies are driving to a level of efficiency never seen before, requiring design engineers to perform numerous specialized power measurements that are time-consuming and complex. Our poster is designed to give you the information you need when it comes to testing your power supplies.
Test & Measurement
|Keeping track and updated on the latest frequency allocations isn’t easy, so we’ve compiled the information into an easy-to-view poster. Get access to frequency allocations by country or scan by specific transmission bands.
Two test strategies are used to test virtually all IC logic automatic test pattern generation (ATPG) with test pattern compression, and logic built-in self-test (BIST). For many years, there was a passionate debate between some DFT practitioners about which is the best test method ATPG or BIST. ATPG has been dominant for years, and is now used for full-chip test across the electronics industry. More recently, the use of logic BIST has increased with the higher demand to be able to test chips in a system or with limited tester interface, such as for burn-in test, board test, and MCM (multi-chip module).
A frequently asked question about measurements made with piezoelectric (PE) vibration sensors is related to the measurement parameters. After completing a test and evaluating data, test engineers may observe obvious signs of problems within the data that was collected. Many factors can affect the data from…
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Large System on Chip (SoC) designs present many challenges to all design disciplines, including design-fortest (DFT). By taking a divide-and-conquer approach to test, significant savings in tool runtime and memory consumption can be realized. This whitepaper describes the basic components of a hierarchical DFT methodology, the benefits that it provides, and the tool automation that is available through Mentor’s Tessent tool suite.
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In the eternal quest to improve upon safety, efficiency, comfort, productivity and return on investment, and to meet some legislative requirements (see Tier 4 emissions), the mobile equipment world has embraced numerous advances afforded by technology.
All around CONEXPO-CON/AGG and IFPE you will find components, equipment and exhibits which provide wonderful examples of the advances made for the greater good in the world of construction equipment. OEMs, dealers, renters, operators, service technicians and owners will all be able to point out technologies which have helped them to better handle the daily challenges they face. And some of those advances have added to the controls network requirements, particularly as they relate to bandwidth and real-time determinism. While CAN networks have become increasingly common in mobile equipment over the last 10 to 15 years, there is now a growing interest in alternative control network technology which offers much better performance.
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The conditions surrounding production environment metrology place special demands on position measuring systems used for workpiece inspection in shop-floor metrology. The very principle of inductive systems involves disadvantages such as temperature sensitivity or nonlinear behavior. A length gauge recently developed by HEIDENHAIN in Traunreut, Germany, now combines the benefits of incremental optical devices and absolute measured value acquisition. Its advantages over previous position measuring systems make it an interesting alternative for shop-floor length measurement.
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When designing automated test systems and choosing a test system architecture, you need to take into account several design considerations and challenges including increased device complexity, shorter development cycles, decreased budgets, and test system longevity. For your test system, determine the factors that are most important and choose an architecture that best meets your needs.
Our lifestyle is surrounded by a variety of power electronic products including inverter air conditioners, inverter fluorescent lamps, refrigerators, motors, amplifiers, and UPS’s. The power control boards for these products contain microcomputers that gauge load conditions to allow optimum control. For example, the microcomputers in air conditioners estimate the current load to perform a precise noise and temperature control. This is accomplished by changing the rotary speed of the motor and without any restrictions to the motor inverter. Similarly, the inverter control panel in fluorescent lamps inhibit the flickering with continuous high frequency lighting.
Oscilloscopes are indispensable tools for anyone designing, manufacturing or repairing electronic equipment. In today’s fast-paced world, engineers need the best tools available to solve their measurement challenges quickly and accurately. As the eyes of the engineer, oscilloscopes are the key to meeting today’s demanding measurement challenges. The usefulness of an oscilloscope is not limited to the world of electronics. With the proper sensor, an oscilloscope can measure all kinds of phenomena. A sensor is a device that creates an electrical signal in response to physical stimuli, such as sound, mechanical stress, pressure, light, or heat. A microphone is a sensor that converts sound into an electrical signal. Figure 1 shows an example of scientific data that can be gathered by an oscilloscope.