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Our consultants regularly engage in research activities related to our normal client services. This archive includes the majority of the published technical papers, presentations, and other publications related to this research.

Control of infrasonic noise from mechanical ventilation systems in sensitive imaging laboratories

High resolution imaging equipment, such as transmission and scanning electron microscopes, can be very sensitive to the environment in which they are installed.  Environmental factors including temperature, electromagnetic interference, vibration, and noise must be considered in the design of laboratories intended to house such instruments.  With regard to noise, this equipment is often most sensitive […]...
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The Effect of Varying Acoustic Pressure on Vibration Isolation Platforms Supported on Air Springs

Air spring isolation systems are commonly used to support sources of vibration, or equipment sensitive to vibration, in order to reduce vibration transmission from source to receiver. In the latter case, commercial isolation tables or custom-designed “plinths” may use isolation systems to provide reduced vibration environments at the base of sensitive equipment supported on them. […]...
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Visually Observable Vibration Sensitivity of a Laboratory Bench Microscope

[1] ABSTRACT Bench-mounted optical microscopes have a wide variety of applications in science and technology. The vibration sensitivity is a function of magnification, vibration direction and support conditions. The paper presents the results of experimental studies addressing vibration sensitivity as well as the amplification and attenuation provided by typical laboratory casework. The benchtop vibration amplitudes […]...
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Maturation’ of the Vibration Environment in Advanced Technology Facilities

Abstract Semiconductor production and other advanced technology facilities are often designed in two stages, delineated as “base build” and “hook up”. The first stage, at completion termed “as-built” by ISO, includes the design and construction of the shell structure and all architectural, mechanical, electrical, and process systems needed to operate the building. The second stage, […]...
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