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IEC 60500:2017 Published for Underwater Acoustics – Hydrophones

Untitled-3The International Electrotechnical Commission (IEC) has released IEC 60500:2017 . This includes “Underwater acoustics – Hydrophones – Properties of hydrophones in the frequency range 1 Hz to 500 kHz.” This standard is now available on the IEC webstore.

Description: “IEC 60500:2017 specifies the relevant characteristics and properties of hydrophones in the frequency range 1 Hz to 500 kHz, and specifies how to report these characteristics. Provides guidance on the choice of a hydrophone with appropriate performance for a specific application. This standard is applicable to:

– hydrophones employing piezoelectric sensor elements, designed to respond to sound pressure in water and measure underwater acoustical signals;
– hydrophones with or without an integral pre-amplifier.

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A Dash of Maxwell’s: A Maxwell’s Equations Primer – Part Two

Maxwell’s Equations are eloquently simple yet excruciatingly complex. Their first statement by James Clerk Maxwell in 1864 heralded the beginning of the age of radio and, one could argue, the age of modern electronics.

This new edition includes the following significant technical changes with respect to the previous edition:

– the format and scope of IEC 60500 have been changed to be compatible with other IEC standards;
– the upper limit of the frequency range of hydrophones has been expanded.

 

*Description from the IEC Website.

 

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