A real-time measurement platform for surface contact electrification
A real-time measurement, surface contact technology, applied in the field of measuring instruments, to achieve the effect of good scalability and convenient adjustment
Active Publication Date: 2021-08-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
At the same time, the ball-plate friction electrification has been studied. The Chinese patent with the notification number CN205487037U discloses a device that can measure friction-electricity in real time. This invention has many control factors and is easy to control, but it is aimed at the ball-plate friction pair. , in addition, the purpose is only to collect the amount of charge, and there is no collection of electrical signals
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] combine figure 1 As shown, the present invention provides a real-time measurement platform for surface contact electrification, including a base 8, a frequency adjustment device, a contact electrode, a load adjustment device, and a force and electricity signal measurement device. The frequency adjustment device adjusts the electrode contact through the speed controller 1. When the contact frequency is , it implements the contact between the left force applying block 10 at the end and the left contact electrode 11 . The load adjustment device adjusts the load when the electrodes are in contact through the angle controller 22, and the right force applying block at the end of the device is in contact with the right contact electrode 12. In the force and electrical signal measuring device, the electrical signal measuring device is ...
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The invention discloses a surface contact electrification real-time measurement platform, which comprises a base, a frequency adjustment device, a contact electrode, a load adjustment device, and a force and electricity signal measurement device. The frequency adjustment device includes an adjustable-speed stepping motor and a slider crank mechanism, which can realize the adjustable contact frequency of the electrodes. The load adjusting device includes a stepping motor with adjustable rotation angle and a screw mechanism, so as to realize precise adjustment of the distance between contact electrodes and thus change the contact load. The left and right contact electrodes are respectively installed at the ends of the frequency adjustment device and the load adjustment device, and the charges generated by the contact flow back and forth between the two electrodes through the resistance. The force and electricity signal measuring device collects and stores the load and current at the moment of contact in real time. The invention can realize real-time on-line measurement of contact electrification, and can record the current signal waveform at the moment of contact in detail, provide support for theoretical calculation of contact electrification, and can also adjust frequency and load influencing factors during contact.
Description
technical field [0001] The invention relates to the field of measuring instruments, in particular to an electrical signal measuring instrument. Background technique [0002] As a near-field source of natural disasters, static electricity generated by contact / friction has caused huge losses and disasters to human society during the production and processing of microelectronic devices, powders, petroleum, and chemicals. But at the same time, it also has places where it is reasonably applied. For example, electrostatic separation is a separation technology widely used in industries such as dust removal, pharmaceuticals, and mineral processing. In recent years, new progress has been made in contact / triboelectrification research and technology exploration. Since 2012, based on the principles of triboelectrification and electrostatic induction, Wang Zhonglin and others have invented triboelectric nanogenerators, which can be used to collect different forms of mechanical energy, i...
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IPC IPC(8): G01R29/24
CPCG01R29/24
Inventor 王林锋董义李进戴振东
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS