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Figure 1 | BMC Musculoskeletal Disorders

Figure 1

From: The effect of physical loading on calcaneus quantitative ultrasound measurement: a cross-section study

Figure 1

Block diagram of QUS measurement system. Two ultrasound transducers are fixed coaxially on both sides of the calcaneus and are coupled to the skin through coupling gel. Ultrasonic pulse is generated from one transducer, transmitting through the calcaneus and detected by another transducer. The detected signal is amplified by 5800 PR and output to GaGe CompuScope 12400, where the signal is sampled and converted to digital signal for further analysis.

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