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IEC/TS 61949-ed.1.0
Ultrasonics - Field characterization - In situ exposure estimation in finite-amplitude ultrasonic beams
STANDARD published on 27.11.2007
The information about the standard:
Designation standards: IEC/TS 61949-ed.1.0
Publication date standards: 27.11.2007
SKU: NS-408087
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC/TS 61949-ed.1.0 :
This Technical Specification describes means to allow "attenuated" acoustic quantities to be calculated under conditions where the associated acoustic measurements, made in water using standard procedures, may be accompanied by significant finite-amplitude effects. This Technical Specification establishes: - the general concept of the limits of applicability of acoustic measurements in water resulting from finite-amplitude acoustic effects; - a method to ensure that measurements are made under quasi-linear conditions in order to minimise finite-amplitude effects; - the definition of an acoustic quantity appropriate for establishing quasi-linear conditions; - a threshold value for the acoustic quantity as an upper limit for quasi-linear conditions; - a method for the estimation of attenuated acoustic quantities under conditions of nonlinear propagation in water.
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