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New Micro-Measurements® StudentDAQ Version Adds 350 Ω and 1 kΩ Quarter-Bridge Inputs for More Precise Measurement
MALVERN, Pa. May 31, 2016 — As part of its continued focus on the classroom, Micro-Measurements®, a Vishay Precision Group, Inc. (VPG) brand, today introduced a new version of its popular StudentDAQ pocket-sized, USB-powered data acquisition device for use with resistive strain sensors. Originally available with 120 Ω quarter-bridge inputs, the new version offers additional 350 Ω and 1 kΩ quarter-bridge inputs for more precise measurement in a variety of applications.
“The 120 Ω quarter-bridge input used to be the most commonly used resistance value in measurement applications; however, when the end user has a choice of values, higher resistances such as 350 Ω and 1 kΩ are often preferable because they significantly reduce heat generation,” said Donielle Dockery, Micro-Measurements senior field design engineer. “In addition, these values decrease leadwire effects such as circuit desensitization due to leadwire resistance and unwanted signal variations caused by leadwire resistance changes with temperature fluctuations. Similarly, when the strain measurement circuit includes switches, slip rings, or other sources of random resistance change, the signal-to-noise (SNR) ratio is improved with higher-resistance strain sensors operating at the same power level.”
Optimized for classroom environments or convenient, low-cost gage installation verification, the easy-to-use StudentDAQ doesn’t require calibration, and it features built-in support for a single channel of full-bridge, half-bridge, and quarter-bridge inputs, including all necessary bridge completion. The unit provides basic functionality for simple data logging and academic lab experiments, yet is powerful enough for more sophisticated measurement applications. The StudentDAQ’s 24-bit delta-sigma A/D converter provides a ±16,000 µε measurement range at 80 Hz and a gage factor setting of 2.00, with a 1% of reading accuracy and a resolution of 1µε.
The new StudentDAQ version is an example of Micro-Measurements’ commitment to supporting the educational community through product offerings and programs designed to aid engineering and technology students and educators. This support includes strain sensor discounts and bundles; a selection of Student Strain Gage based sensors; an extended warranty program for instrumentation; and Experiments in Mechanics, a series of exercises designed around the simple cantilever beam and intended to teach mechanics using experimental stress analysis technology.
Further information about the StudentDAQ, including a video demonstration, is available at www.micro-measurements.com. Follow Micro-Measurements at www.strainblog.com or twitter.com/strain_gage.
About Vishay Precision Group, Inc. (NYSE: VPG)
VPG is an internationally recognized designer, manufacturer and marketer of: components based on its resistive foil technology; sensors; and sensor-based systems specializing in the growing markets of stress, force, weight, pressure, and current measurements. VPG is a market leader of foil technology products, providing ongoing technology innovations in precision foil resistors and foil strain gages, which are the foundation of the company’s force sensors products and its weighing and control systems. The product portfolio consists of a variety of well-established brand names recognized for precision and quality in the marketplace. To learn more, visit VPG at www.vpgsensors.com.
About Micro-Measurements
Micro-Measurements, a Vishay Precision Group, Inc. (VPG) brand, is dedicated to the development, manufacture, and marketing of resistive-foil sensors for high-precision strain measurement. Micro-Measurements offers a full complement of strain gages, PhotoStress® equipment and coatings, data acquisition systems, and supplies necessary to obtain accurate, reliable stress data. Our products are used throughout the industrialized world — both in the practice of stress measurements analysis and as the sensing elements in a wide variety of transducers for measuring physical variables (weight, force, torque, pressure, etc.). More information about Micro-Measurements is available at www.micro-measurements.com.
Micro-Measurement, StrainSmart and PhotoStress are registered trademarks of VPG.