| 摘要 |
<P>PROBLEM TO BE SOLVED: To freely execute measuring work in an easier manner. <P>SOLUTION: In a digital multimeter 1 with a clamped current meter consisting of a clamped current meter 2 and a digital multimeter 3, the clamped current meter 2 has an A/D converting means 23, 24 for converting measurement result of magnetic field generated by a current flowing through a measurement objective wire from analogue signal to digital signal, an infrared transmitting means 25 for modulating the digital signal obtained by the A/D converting means 23, 24 into infrared signal and transmitting it in a wireless manner. The digital multimeter 3 has a infrared receiving means 37 for receiving the infrared signal transmitted from the infrared transmitting means 25 and demodulating it into digital signal and indication means 31, 32 for indicating the digital signal from the infrared receiving means 37 as an electric current value on a display screen. <P>COPYRIGHT: (C)2004,JPO |
