Pond Science Institute

Electromagnetism

History, science and technology of Electro-Magnetism.



Model Product Image Item Name Price
N0018488 Hybrid Electrostatic Acoustic Levitator

Hybrid Electrostatic Acoustic Levitator

A levitator for liquid drops and small particles includes both electrostatic and acoustic components for versatility in the manipulation of samples....
$1.15

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N0271192 Hydrogen-Maser Frequency Standard

Hydrogen-Maser Frequency Standard

A maser functioning as a frequency standard stable to one part in 10-14 includes a variable volume, constant surface area storage bulb having a fixed...
$3.00

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N0006488 Improved Acoustic Levitation

Improved Acoustic Levitation

A method and apparatus for enhancing and shaping acoustical levitation forces in a single-axis acoustic resonance system wherein specially shaped...
$2.25

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N0261192 Improved Fourier Interference Spectrometer

Improved Fourier Interference Spectrometer

The novelty of the innovation lies in the new combination of elements defining a scanning Fourier interference spectrometer, and more specifically to...
$0.95

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N0091192 Improved Ultrasonic Resolution via Analog Technique

Improved Ultrasonic Resolution via Analog Technique

High spatial resolution is obtained from reflected or transmitted ultrasonic pulses by an analog technique that produces a signal proportional to the...
$2.50

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N0181192 Impulse Test Technique with Application to Acoustic Measurements

Impulse Test Technique with Application to Acoustic Measurements

A method has been presented for measuring the acoustic properties of an absorbent material and a duct/nozzle system (with or without airflow) using a...
$4.00

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N0071192 Interferometer Detects Acoustic Emissions in Composites

Interferometer Detects Acoustic Emissions in Composites

Acoustic emission in prestressed composite panels has been detected using embedded single mode optical fibers. Static loading of the composite matrix...
$1.00

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N0301192 Interferometer for Measuring Acoustic Signals

Interferometer for Measuring Acoustic Signals

A broadband differential optical Interferometer which uses an optical fiber waveguide to transmit coherent light to a surface under inspection is...
$2.50

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N0081192 Interferometer Measures Broadband Surface Acoustic Waves

Interferometer Measures Broadband Surface Acoustic Waves

The invention relates generally to interferometers and more specifically concerns a dual differential Interferometer that measures both the amplitude...
$1.35

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B0001488 Keely and His Discoveries

Keely and His Discoveries

From the Preface: "This is the thing which has happened in the case which this little volume comes forth to relate and explain. It is not intended to...
$22.95

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