| 摘要 |
<p>The invention relates to a dynamic power supply device, comprising a housing (1) provided with a first circular hole (3) and a second circular hole (4), which are coaxial and opposite with each other; a bearing (2) located in the first circular hole (3), in which the outside ring of the bearing (2) is electrically coupled to an anode of an exterior power supply via a lead (5). The invention also relates to a torque sensor, comprising said dynamic power supply device; a measuring shaft (9), one end of which passes through the bearing (2) and the other end of which passes through the second circular hole (4); a processing circuit (10), which is arranged on the measuring shaft (9), the anode of which is electrically coupled to the inside ring of the bearing (2) and the cathode of which is electrically coupled to the measuring shaft (9); a plurality of infrared transmitting tubes (101) arranged on the surface of the measuring shaft (9); an infrared receiving tube (102) arranged on the housing (1), which is corresponding with said infrared transmitting tubes (101). The pins of said infrared receiving tube (102) are connected to exterial signal processing equipment via some signal wires. Because the invention introduces a hearing to an exterior supply power, the reliable power supply connection is provided and the fault existed in traditional electric supply for rotable device is eliminated. Because the invention introduces non-contact photoelectric coupling connection, the measured signal can be reliably, handily and interference-freely transmitted.</p> |
