The present invention provides a 
system for improving the accuracy of the measurement of the 
osteoporosis condition of the 
human body parts especially bones using more than three parameters, viz., the 
broadband ultrasonic attenuation (BUA) quantity, the velocity of 
ultrasound (SOS) in the bone, the 
broadband ultrasonic back scattering (BUB) intensity, and the Width of received maximum (WORM) values are calculated from received 
ultrasound signals. The accuracy of each measured diagnostic parameter is improved by measuring the 
tissue thickness and the squish amount in the 
coupling pad instead of assuming constant thickness for the tissue. The several operating 
modes of the device are controlled and the frequency and the timing of the emitted ultrasounds signals are adjusted by using a 
field programmable gate array. The error generated in the measurement of the 
bone mineral density due to the variation in the 
anatomy and the size of the foot, is removed by using a removable footpad. The present invention provides a mechanism to replace the gel pads easily. The generation of 
cross infection is prevented by using the disposable and replaceable 
coupling pads.