Multimeter instrument with touch-sensitive selection device
First Claim
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1. A multimeter instrument for measuring a plurality of variables, the instrument comprising:
- a plurality of measurement means, each measurement means being associated with a respective variable, a device for selection of the variable to be measured, and having touch-sensitive zones for selection of the variable to be measured, a plurality of input sockets, means for activating the measurement means associated with the variable selected and including touch-sensitive selection zones, a microprocessor, and a switching circuit connecting the input sockets to the measurement means and controlled by the microprocessor as a function of commands from the touch-sensitive selection zones, wherein each touch-sensitive selection zone includes means for activating the microprocessor.
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Abstract
A multimeter instrument for measuring variables, such as electrical current, voltage, or resistance includes touch-sensitive zones for selection of the variable to be measured. The measurement circuit associated with the variable selected with the aid of touch-sensitive selection zones is activated by the zone selected.
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Citations
15 Claims
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1. A multimeter instrument for measuring a plurality of variables, the instrument comprising:
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a plurality of measurement means, each measurement means being associated with a respective variable, a device for selection of the variable to be measured, and having touch-sensitive zones for selection of the variable to be measured, a plurality of input sockets, means for activating the measurement means associated with the variable selected and including touch-sensitive selection zones, a microprocessor, and a switching circuit connecting the input sockets to the measurement means and controlled by the microprocessor as a function of commands from the touch-sensitive selection zones, wherein each touch-sensitive selection zone includes means for activating the microprocessor. - View Dependent Claims (2, 6, 7, 8, 9)
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3. A multimeter instrument for measuring a plurality of variables the instrument comprising:
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a plurality of measurement means, each measurement means being associated with a respective variable, a device for selection of the variable to be measured, and having touch-sensitive zones for selection of the variable to be measured, means for activating the measurement means associated with the variable selected and including touch-sensitive selection zones, a plurality of input sockets, means of measuring electrical current, a current input socket used when the means of measuring electrical current is selected, a measurement cord selectively connectable at a connecting end to one of the sockets, and means for detecting connection of the connecting end of the cord to the current input socket, wherein the current input socket has two half-sockets electrically isolated from one another, the connecting end of the cord includes a plug for short-circuiting the two half-sockets when the connecting end of the cord is connected to the current input socket, the detection means detects the short-circuiting of the two half-sockets, the means for activating the measuring means includes a microprocessor, and each touch-sensitive selection zone includes means for activating the microprocessor. - View Dependent Claims (5, 10, 11, 12)
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4. A instrument for measurement a plurality of variables, the instrument comprising:
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a plurality of measurement means, each measurement means being associated with a respective variable, a device for selection of the variable to be measured, and having touch-sensitive zones for selection of the variable to be measured, means for activating the measurement means associated with the variable selected and including touch-sensitive selection zones, a plurality of input sockets, means of measuring electrical current, a current input socket used when the means of measuring electrical current is selected, a measurement cord selectably connectable at a connecting end to one of the sockets, and means for detecting connection of the connecting end of the cord to the current input socket, wherein the means for activating the measuring means automatically activates the means of measuring electrical current when the detection means detects the connection of the connecting end of the cord to the current input socket and current was selected by the device for selection, the means for activating the measuring means includes a microprocessor, and each touch-sensitive selection zone includes means for activating the microprocessor. - View Dependent Claims (13, 14, 15)
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Specification