| 摘要 |
PURPOSE: An apparatus for measuring a multi channel voltage is provided, which measures several data simply by mixing functions of a multi channel recorder and a multi tester. CONSTITUTION: An input connector(110) comprises a plurality of channels, receiving each port voltage, connected to each port of a control card, and an attenuator(120) drops the port voltage inputted through each channel of the input connector. A channel selector(130) selects one channel and provides it to a rear stage, and an AD(Analog Digital) converter(140) converts the port voltage inputted through the channel selector into a digital signal. A central processing part(160) stores the digital signal in a display part(180) and controls the multi channel voltage measurement apparatus. An automatic range conversion circuit(150) controlled by the central processing part controls the attenuator. A switch part(170) transfers an operation condition of a user to the central processing part. A power supply part(200) supplies a power voltage to each part of the apparatus, and an automatic power blocking circuit(210) controlled by the central processing part blocks the power supply part automatically.
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