The APx516B from Audio Precision comes with built-in analog I/O and a slot that adds wired or wireless digital I/O. With so many of today’s devices having audio capabilities, engineeers designing wired or wireless audio into a device need to verify audio quality. Audio Precision, well known for its audio analyzers, has introduced the APx516 […]
Meters & Testers
You indeed can measure three-phase power in a motor with just two wattmeters. Part 3 of this FAQ concluded with a simplified diagram showing a test setup that included a programmable power supply, a motor under test, a mechanical load, a power analyzer, and host computer. The programmable power supply could simulate the AC line […]
Spectrum Instrumentation has extended the M5i flagship series of high-speed PCIe digitizers, adding two new models with ultrawide bandwidths that go up to 4.7 GHz for -3 dB attenuation or even 5 GHz for -5 dB attenuation. The models M5i.3360-x16 and M5i.3367-x16 provide one and two channels respectively with prices starting from $27,990. Each card […]
Near-field probes let you find the sources of near-field and far-field EMI that ruin your design, and your day. You don’t need to know Maxwell’s Equations to troubleshoot your designs.
All measurements need reliable, accurate equipment that’s traceable to worldwide standards. Without that, measurements have no value. From ensuring product quality in a factory to safety to letting every individual use a computer or phone, accurate measurements are critical in every aspect of our lives. In the automotive industry, accurate measurements of components and the […]
For 2023, the digital version features 11 technical articles that cover test from signal integrity on the bench to automated test on the production floor.
It’s a tenet of the test-and-measurement industry that you should concentrate on looking for defects in your device under test (DUT) — not in your test equipment. Figure 1 illustrates a common problem. An instrument presents an incorrect reading; in this case, an LRC meter or multimeter presents a resistance reading that’s about 5% low. […]
The midUTS from Bloomy contains a multimeter, data-acquisition, switching, and power supplies for testing boards and systems. Automating tests — whether for bench testing new designs, in production, or for service — increases productivity but comes at a price. If you’re going to build an automated test system all yourself, expect to specify the instrumentation, […]
Back from a three-year hiatus, I’m covering test and measurement again. This time, it’s for EE World.
The 5560A from Fluke Calibration lets you calibrate DMMs to 6½. Other models handle fewer digits.