All items tagged with test and measurement (401)

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 6) - Measurement Examples

May 17, 2017 by Stuart Yaniger

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 6) - Measurement Examples

Stuart Yaniger continues to examine ways to create a low-cost system for lab-grade audio electronics measurements. In this article, a few measurement examples are used to illustrate the power and the versatility of sound-card-based measurements. To illustrate the usefulness of measurements in the design process, Yaniger also explores the effects of load on power supply noise for a common IC regulator circuit. This article was originally published in audioXpress, November 2015.

Avermetrics Releases 8-Channel Switch for Audio Measurements

May 17, 2017 by audioXpress Staff

Avermetrics Releases 8-Channel Switch for Audio Measurements

Audio and electronic production test systems specialist, Avermetrics, has announced the release of its new 9084 Analog Switch. Based in Los Angeles, California, Avermetrics develops highly modular and scalable test solutions for electronics production lines. Its new 9084 Analog Switch was precisely designed to respond to the needs of audio equipment manufacturers with high-channel count devices that need to be tested.

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 5) - The User

May 10, 2017 by Stuart Yaniger

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 5) - The User

In this article series, Stuart Yaniger examines ways to create a low-cost system for lab-grade audio electronics measurements. The first four articles in the series looked at the hardware and software bits of the sound-card based measurement system. The last remaining piece is the user and the need to choose the right measurement parameters. This article was originally published in audioXpress, October 2015.

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 4)

May 3, 2017 by Stuart Yaniger

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements (Part 4)

In this article series, Stuart Yaniger examines ways to create a low-cost system for lab-grade audio electronics measurements. The pieces of a powerful modern measurement system comprise a sound card, software, and a signal conditioning interface and, of course, the right computer. In this fourth article in the series, the author looks at selecting the right interface. This article was originally published in audioXpress, September 2015.

PCB Piezotronics Introduces New Phantom Powered Preamplifier Design for Audio Measurements

April 28, 2017 by audioXpress Staff

PCB Piezotronics Introduces New Phantom Powered Preamplifier Design for Audio Measurements

A new, patent pending, universal preamplifier from PCB Piezotronics, reduces project costs by allowing users to interchange multiple test microphone cartridges to meet unique testing requirements. Model 426A14 adapts to any IEC 61094-4 compliant, prepolarized microphone for use in loudspeaker design, microphone and amplifier modeling, and live sound or high definition recording applications.

Ed Okorn Joins G.R.A.S Sound & Vibration as General Manager for North America

April 14, 2017 by audioXpress Staff

Ed Okorn Joins G.R.A.S Sound & Vibration as General Manager for North America

G.R.A.S. Sound & Vibration announced the appointment of Ed Okorn as General Manager for North America. The world-renowned manufacturer of high-quality measurement microphones and related acoustic equipment, based in Denmark, hopes to expand their market share in North America and strengthen business relationships with clients and technology partners in the region.

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements

April 13, 2017 by Stuart Yaniger

Practical Test & Measurement: Sound Cards for Data Acquisition in Audio Measurements

Part 1 of an article series that looks at some of the available options and methods to create a low-cost system (emphasis on “low-cost”) for lab-grade audio electronics measurements. Focusing on solutions within easy reach of budget-conscience hobbyists, the goal is to demonstrate how you can generate useful data, similar to the graphs and charts in the audio review magazines, but without the expense. A great test and measurement article series by Stuart Yaniger, which started to be originally published in audioXpress, June 2015.

3PASS flex: New Background Noise Simulation System for Multi-Microphone Arrangements

April 11, 2017 by audioXpress Staff

3PASS flex: New Background Noise Simulation System for Multi-Microphone Arrangements

3PASS flex is HEAD acoustics new simulation system for measuring speech quality performance in the presence of background noise. It is particularly suited for testing multi-microphone systems, microphone arrays or beamforming microphones in real world conditions where multi-point noise simulation with flexible microphone and loudspeaker arrays is required. 3PASS flex reproduces any previously recorded sound field at distinct microphone positions, representative of typical use cases.

Fresh From The Bench: Audio Precision APx1701 Transducer Interface

April 5, 2017 by Stuart Yaniger

Fresh From The Bench: Audio Precision APx1701 Transducer Interface

audioXpress March 2017 featured a thorough review by Stuart Yaniger of Audio Precision’s new APx1701 Transducer Interface. This compact solution, when combined with an APx500-series analyzer, creates a test center suitable for measuring speakers, headphones, and microphones, as well as electronics. As Stuart Yaniger finds out, the combination of the APx1701, an APx515 and APx500 software, provides an extremely comprehensive and convenient multi-functional measurement test center.

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B&K Precision Expands Bench LCR Meter Family with 500 kHz and 1 MHz Models

March 24, 2017 by audioXpress Staff

B&K Precision Expands Bench LCR Meter Family with 500 kHz and 1 MHz Models

B&K Precision continues to deliver on its promise of delivering reliable and cost-effective test and measurement instruments and announced the expansion of its bench LCR meter family with the addition of two new models that extend the family's test frequencies up to 1 MHz. B&K Precision's new 894 and 895 bench LCR meters provide test frequencies from 20 Hz to 500 kHz and 20 Hz to 1 MHz, respectively, and can measure inductance, capacitance and resistance with 0.05% basic impedance accuracy.

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