Device and method for measuring memristor power-lossing resistance value based on alternating current power supply

A technology of AC voltage source and memristor, which is applied in the field of measurement, can solve the problems of the change of the resistance value of the memristor and the inability to accurately measure the power-off resistance value of the memristor, and achieve the effect of reducing the impact

Inactive Publication Date: 2013-08-28
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

If the traditional method of measuring resistance is adopted, such as ohmmeter method, voltammetry method or bridge balance method, etc., due to the effect of an external DC power supply in the circuit, the resistance value of the memristor will change with the measurement process. Large changes, so it is impossible to accurately measure the dead resistance value of a real memristor

Method used

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  • Device and method for measuring memristor power-lossing resistance value based on alternating current power supply
  • Device and method for measuring memristor power-lossing resistance value based on alternating current power supply
  • Device and method for measuring memristor power-lossing resistance value based on alternating current power supply

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Embodiment Construction

[0020] The specific implementation of the present invention will be described in detail below in conjunction with the technical scheme and accompanying drawings.

[0021] The detection circuit for measuring the loss resistance of the memristor includes the memristor to be tested, an AC voltage source, an ammeter and a variable resistor. The circuit structure is shown in Figure 1.

[0022] The SPICE model of the memristor adopts the memristor model provided by Hewlett Packard. A memristor has a minimum resistance of 1k and a maximum resistance of 100k. Set the amplitude of the AC voltage signal to 1V and the frequency to 25Hz. Adjust the resistance of the variable resistor to 1MΩ.

[0023] During measurement, the AC voltage source sends out an AC voltage signal, the effective value of the voltage signal is 1V, and the frequency is 25Hz. The ammeter measures the effective value of the current in the measuring circuit, and the effective value of the current at this time is 926...

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Abstract

The invention belongs to the technical field of measurement, and relates to a device and method for measuring the memristor power-lossing resistance value based on an alternating current power supply. The device and the method is characterized in that the alternating current power supply, a variable resistor and a memristor are mutually in series connection in a measurement circuit, the smaller the range of an alternating current voltage source is, the larger the value of frequency f is, and the smaller relative changes of the resistance value of the memristor in measurement are. According to the method and the device, the alternating current voltage power supply is adopted to replace a traditional direct current power supply, so influences on the resistance of the memristor in the measurement process can be reduced. The range and frequency of an alternating voltage signal can be regulated, and requirements for different measurement precisions can be met.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a device and method for measuring the power-off resistance value of a memristor based on an AC power supply. Background technique [0002] Memristors are the fourth basic circuit element after resistors, inductors, and capacitors. In 1971, Professor Cai Shaotang proposed the concept of memristors. It was not until 2008 that the existence of memristors was confirmed by the HP laboratory, which set off an upsurge of memristor-related research. The resistance value of a memristor reflects the relationship between the flux linkage and charge passing through the device, and its resistance value M can be written as the charge q or flux linkage flowing through the device The function. When the charge flows in one direction, the resistance value increases, and when the charge moves in the opposite direction, the resistance value decreases. [0003] According to the memristor model ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14
Inventor 李冠林牟宪民陈希有
Owner DALIAN UNIV OF TECH
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