As a clinical instrument for measuring human bone mineral density,the calibration of ultrasonic bone mineral density meter has been widely concerned.At present,the calibration of this kind of instrument mainly a-dopts the measurement mode,and the mode on the market has limitations on the setting range of the key measure-ment index"sound speed".Therefore,based on the principle analysis and test,this paper studies the sound veloci-ty calibration method of this kind of module,so as to provide reference for the development of new module and solve the calibration and traceability problems.
关键词
超声骨密度仪/校准模体/声速校准
Key words
ultrasound bone sonometer/phantoms/calibration of speed of sound