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Automated Fan Test Plenum Expedites Acoustic Testing

Automated Fan Test Plenum

Cedar Park, Texas – October 12, 2009 - ETS-Lindgren announced the availability of the Automated Fan Test Plenum (AFTP), an automated test system designed to measure the noise emissions from fans and other air moving devices. Manufacturers that use fans to cool products, such as information technology (IT) companies and computer manufacturers, will find the AFTP ideal for rapid characterization of acoustic fan performance under a variety of operating conditions. The AFTP meets the testing requirements specified by industry standards ISO 10302 and ANSI S12.11.

“Now manufacturers may quickly know the impact a fan design or placement has on the overall performance of its end product,” said Douglas Winker, Ph.D., Acoustic Engineer for ETS-Lindgren. “For example, the noise generated by a fan is highly dependent on the rotational velocity and aerodynamic load conditions. Fans are required to deliver a specified air-flow volume in order to cool components. This air-flow volume is impacted by chassis design and system cooling requirements, which have a direct impact on the noise generated by a fan.” He added, “With the AFTP, design engineers can immediately evaluate and optimize the selection or design of a system fan in terms of both its aerodynamic and noise emissions performance over a specific range of operating conditions.”

The AFTP features a welded aluminum framed plenum enclosure with an acoustically transparent polyester film covering that encloses an air volume. An automated exit port slider allows a fan to be operated at a variety of aerodynamic operating points and facilitates the measurement of the sound power level of the device under these conditions. The plenum assembly has been designed to be both acoustically transparent and non-dissipative to insure that the total sound power generated by the air moving device is radiated into the sound power level measurement system.

Customized versions of the AFTP and associated control system are available for testing to particular requirements. Optional features may be added to evaluate pressure drop, flow volume, and fan voltage, among others. LabView™ based software allows additional customization of software for fully automated integration with a manufacturer's data acquisition system. The ATFP is available in three sizes: full, half and quarter scale, in accordance with industry standards.

For more information on the AFTP, please contact the sales department at info@ets-lindgren.com, phone 512.531.6400. To learn more about ETS-Lindgren’s acoustic test capabilities and services, including the company's unique Acoustic Research Lab (ARL), click here. The ARL is an ISO 17025 accredited facility under the US Department of Commerce NIST National Voluntary Laboratory Accreditation Program (NVLAP) Lab Code 100286-0.

About ETS-Lindgren

ETS-Lindgren is an international manufacturer of components and systems that measure, shield, and control electromagnetic and acoustic energy. The company’s products are used for electromagnetic compatibility (EMC), microwave, wireless and Magnetic Resonance Imaging (MRI) testing, electromagnetic field (EMF) measurement, radio frequency (RF) personal safety monitoring, and control of acoustic environments.

Headquartered in Cedar Park, Texas, ETS-Lindgren has manufacturing facilities in North America, Europe and Asia. The company is a wholly owned subsidiary of ESCO Technologies, a leading supplier of engineered products for growing industrial and commercial markets. ESCO is a New York Stock Exchange listed company (symbol ESE) with headquarters in St. Louis, Missouri. Additional information about ETS-Lindgren is available at www.ets-lindgren.com. Additional information about ESCO and its subsidiaries is available at www.escotechnologies.com.

CONTACT:
Janet O'Neil
Sales & Marketing
ETS-Lindgren
+1-425-868-2558
janet.o’neil@ets-lindgren.com