Apparatus for current measuring and a resistor
AssigneeAgilent Technologies, Inc.
InventorsYoshiyuki Bessho, Shinichi Tanida
Life of this patent
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Abstract
A current measuring apparatus using a resistor comprised of a first resistive element: first electrodes disposed on the two ends of the first resistive element; an insulator arranged on the periphery of the first resistive element; a second resistive element arranged on the periphery of the insulator; and second electrodes disposed on the two ends of the second resistive element.
Claims21
A resistor which comprises:
- a first resistive element;
- first electrodes disposed on both ends of said first resistive element;
- an insulator arranged on the periphery of said first resistive element;
- a second resistive element arranged on the periphery of said insulator;
- and
- second electrodes disposed on both ends of said second resistive element.
A resistor which comprises:
- a first resistive element;
- first electrodes disposed on both ends of said first resistive element;
- a resistive guard part arranged on the periphery of said first resistive element to be in a non-contact state with said first resistive element;
- and
- second electrodes disposed on both ends of said resistive guard part.
A current measuring apparatus which comprises:
- a first resistive element;
- first electrodes disposed on the two ends of said first resistive element;
- an insulator arranged on the periphery of said first resistive element;
- a second resistive element arranged on the periphery of said insulator;
- second electrodes disposed on the two ends of said second resistive element;
- a voltage source that applies the same potential to said opposite first electrodes to said second electrodes;
- a potentiometer that measures the potential difference between said first electrodes;
- and
- a converter that converts said potential difference to the current flowing in said first resistive element.
A current measuring apparatus which comprises:
- a resistive element;
- first electrodes disposed on the two ends of said resistive element;
- a resistive guard part arranged on the periphery of said resistive element and has an electrically non-conducting state with said resistive element;
- second electrodes disposed on the two ends of said resistive guard part;
- a voltage source that applies the same potential as said opposite first electrodes to said second electrodes;
- a potentiometer that measures the potential difference between said first electrodes;
- and
- a converter that converts said potential difference to the current flowing in said resistive element.
A method that provides a resistive element and a guard part and measures the current flowing in said resistive element, said method comprising:
- applying the same potential as the input end of said resistive element to one end of said guard part opposite the input end of said resistive element;
- applying the same potential as the output end of said resistive element to the other end of said guard part opposite the output end of said resistive element;
- and
- measuring the potential difference between the two ends of said resistive element;
- and
- determining said current from said potential difference.
A signal transmission path which comprises:
- a first resistive element;
- first electrodes disposed on the two ends of said first resistive element;
- an insulator arranged on the periphery of said first resistive element;
- a second resistive element arranged on the periphery of said insulator;
- second electrodes disposed on both ends of said second resistive element;
- and
- a voltage source that applies the same potential as said opposite first electrodes to said second electrodes.
A signal transmission path which comprises:
- a resistive element;
- first electrodes disposed on the two ends of said resistive element;
- a resistive guard part arranged on the periphery of said resistive element to be in an electrically non-conducting state with said resistive element;
- second electrodes disposed on the two ends of said resistive guard part;
- and
- a voltage source that applied the same potential as said opposite first electrodes to said second electrodes.
A guard configuration which comprises:
- a second resistive element arranged on the periphery of a first resistive element;
- guard parts having electrodes disposed on the two ends of said second resistive element;
- and
- a voltage source that applies the same potential as the voltage of both ends of said opposite first resistive element to said electrodes.
Dependencies are inferred from the claim text.