Measurements on a Specific Acoustic Pulse Part 2: Measurements
This chapter describes the procedures used and the difficulties encountered when trying to measure the acoustic parameters mentioned in Chapter 6. Section 7.2 deals with the measuring instrumentation, 7.3 and 7.4 describe the measurement procedure, 7.5 deals with problems specific to calibrating continuous-wave systems and finally 7.6 discusses measurement accuracy. The whole of this chapter concentrates on measurements on a piece of equipment in a single excitation mode; Chapters 8 and 9 deal with features specific to real-time scanning devices.
KeywordsFluoride Paraffin Cavitation Acoustics Active Element
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Recommended Additional Reading Material
- Harris GR. Hydrophone measurements in diagnostic ultrasound fields. IEEE Trans Ultrason Ferroelec Freq Contr 1988; UFFC-35: 87–101Google Scholar
- Preston RC. Measurement and characterisation of the acoustic output of medical ultrasonic equipment (Parts 1 and 2). Med Biol Eng and Comput 1986; (Part 1) 24: 113–120; (Part 2) 24: 225–234Google Scholar
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- 6.IEC. Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0.5 MHz to 15 MHz. To be published as an IEC Standard, Document 87(CO)6, International Electrotechnical Commission, Geneva, Switzerland, 1988Google Scholar
- 7.Beissner K. Maximum hydrophone size in ultrasonic field measurements. Acustica 1985; 59: 61–66Google Scholar
- 9.FDA. Guide for measuring and reporting acoustic output of diagnostic ultrasound medical devices. Document 510(k), US Dept of Health and Human Services, Food and Drug Administration, HFZ-132, Rockville, MD 20857, USA, 1985Google Scholar