| 摘要 |
<p>Disclosed is a diagnostic system for coronary artery disease comprising a detector of vibration signal of subject using pulsed laser beam, which is placed apart from the subject, and a detector of vibration signal of environmental noise. Vibration signal detected by the detector of vibration signal of subject and the detector of vibration signal of environmental noise is filtered for canceling internal noise and external noise; the filtered vibration signal is amplified and recorded. The above detector of vibration signal of subject has one or a plurality of laser sources, vibration sensors with laser displacement gage and three-axial accelerometers; the detector of environmental vibrational noise has a three-axial accelerometer and a supersensitive microphone. <IMAGE></p> |
