| 摘要 |
PROBLEM TO BE SOLVED: To realize a self-diagnosis for a defect difficult in detection and a lowering of capability by connecting an ultrasonic apparatus to a multiple- element converter probe, receiving echo by a pulse-transmission of this converter element and analysing the received echo and confirming an operation of the probe or the apparatus. SOLUTION: An ultrasonic probe 10 has a multiple-element converter 30 and these elements are connected to a probe transmitter and a recorder 12 with a conductor for a multiple-conductor cable 38, respectively. By this way, the transmitter and recorder 12 receive an echo signal which is generated in each converter and convert it to a series of digital signals and connect them to a digital beam generator 14. On the other hand, the digital beam generator 14 forms homeomorphous digital echo signal. The digital echo signal which is treated with an image or doppler processor 16 forms a diagnostic image or being displayed on an indicator 18 after a diagnostic measurement, for example tachography and so forth. A diagnostic processor 20 controls a subsystem when the subsystem displays an activated diagnostic function. |
