| 摘要 |
A system includes a testing device and a portable device. The testing device includes a first connector, a signal converting unit, an emitting member, and a receiving member. The portable device includes a second connector and a processor. The signal converting unit converts the test direct current through the first connector and the second connector to the pulse electrical signal. The emitting member converting the pulse electrical signal to an ultrasonic signal. The receiving member converts the ultrasonic signal to the electronic signal. The signal converting unit converts the electronic signal to the feedback digital signal, and transmits the feedback digital signal to the portable device through the first connector and the second connector. The processor includes a testing module and an analyzing module. The testing module calculates the interval to calculate speed. The analyzing module generates a data of the bone density according to the speed. |
