| 摘要 |
An apparatus for testing or screening of peripheral neuropathies at a skin site of an object comprising: support means for supporting a body part containing said skin site of said subject to be tested, vibration generating means having a contact element for positioning in said skin site in a manner to control contact between said vibrating means and said skin site, said vibration generating means being vibrated at specific frequencies, frequency generating means connected to said vibration generating means for supplying a known discrete frequency signal to said vibration generating means, control circuit means modifying amplitude of said known frequency signal in an ascending and descending mode, switch means actuable by said subject to provide response signals to said control circuit means and responsive to an ascending and a descending amplitude of said known frequency signal, said control circuit means having processing means for obtaining a mean threshold signal value from said response signals defined by the means for keeping continuous contact force between said skin site and said contact within a predefined range; said means comprising a transmitter (4) and a receiver (6) for measuring the spatial position alteration (10) of said transmitted signal wherein the required DC-current (ic) is automatically adjusted by the Micro Computer System (1) so that zero offset is achieved for the spatial position (10). |
