| 摘要 |
Disclosed is a signal supply system used in a validity check system or a probe calibration system with respect to a specific absorption rate measurement system, the signal supply system comprising: a signal generator; an amplifier for amplifying a signal; a directional coupler for receiving the amplified signal; a power meter connected to a branch end and a main output end of the directional coupler; and a signal transmission unit connected to the main output end of the directional coupler, wherein constituent devices such as the signal generator, the amplifier, and the power meter or an automatic-adjusting controller capable of exchanging an adjusting signal or information are provided, information on power to be transferred to the signal transmission unit is transferred to the automatic-adjusting controller through the power meter, and the automatic-adjusting controller adjusts the signal generator and/or the amplifier such that the power to be transferred to the signal transmission unit can be constantly maintained. According to the present invention, a validity check and calibration system and the like capable of determining, checking, and correcting the accuracy of a specific absorption rate measurement system can automatically and constantly maintain power fed into a signal emission end side for generating a signal to be sensed in the specific absorption rate measurement system such that stability and effectiveness of a validity check or a probe calibration is increased, thereby reducing the range of uncertainty of the specific absorption rate measurement system. |
