Method for measuring and processing wireless power charging transmission efficiency based on computer software for handheld instruments
A technology of transmission efficiency and calculation software, which is applied in the energy transmission of instruments and meters, and in the field of instruments and meters, can solve problems that are not involved in handheld instruments, and achieve the effect of fewer influencing factors, small errors, and large application range
Active Publication Date: 2022-03-04
TRANSCOM INSTR
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Problems solved by technology
So far, wireless power transmission has been realized in the field of mobile phones, but it has not been involved in handheld instruments.
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[0031] In order to describe the technical content of the present invention more clearly, further description will be given below with reference to specific embodiments.
[0032] The computer software-based method of the present invention for the measurement and processing of wireless power charging transmission efficiency for a handheld meter includes the following steps:
[0033] (1) The computer software system performs initialization processing;
[0034] (2) The system obtains the size parameters of the TX coil and RX coil of the corresponding handheld instrument according to the input information of the user;
[0035] (3) The system calculates the mutual inductance coefficient between the racetrack coils TX and RX by calling the calculation software according to the obtained size parameters of the TX coil and RX coil of the hand-held instrument; the calculation software is MATLAB calculation software, which includes the following step:
[0036] (3.1) Calculate the mutual...
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The invention relates to a method for measuring and processing the transmission efficiency of wireless power charging for a handheld instrument based on computer software, comprising the following steps: calculating the mutual inductance coefficient between two semicircles of the racetrack coil TX and RX according to Newman's formula; calculating the racetrack coil The mutual inductance coefficient between the semicircular part of the TX and the rectangular part of the RX coil; calculate the mutual inductance coefficient between the rectangular part of the racetrack coil TX and the rectangular part of the RX coil; calculate the mutual inductance between the semicircular part of the racetrack coil TX and the RX coil The mutual inductance coefficient, and the calculation result is corrected according to the angular misalignment between the coils; the mutual inductance coefficient between the entire TX coil and the RX coil is calculated; the transmission efficiency is further calculated according to the mutual inductance coefficient between the TX coil and the RX coil and the forward transmission gain . The method for measuring and processing the transmission efficiency of wireless power charging based on the computer software of the present invention is adopted for the hand-held instrument. The calculation of the transmission efficiency has few influencing factors, small errors, and has a large application range.
Description
technical field [0001] The invention relates to the field of instruments and meters, in particular to the field of energy transmission of instruments and meters, in particular to a method for measuring and processing wireless power charging transmission efficiency for handheld meters based on computer software. Background technique [0002] The essence of wireless energy transmission or wireless power transmission technology is based on power supply and load, and energy is transmitted only through electromagnetic induction and coupling without any transmission line in between. Factors such as distance, frequency, and coil model all affect transmission efficiency. So far, wireless power transmission has been achieved in the field of mobile phones, but it has not been involved in handheld meters. Usually when calculating the mutual inductance M between two coils, Greenhouse and Newmann's formula are used. Equal formula calculation. Calculate the transmission efficiency bet...
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IPC IPC(8): G01R31/00G06F30/20
CPCG01R31/00
Inventor 黄蔚
Owner TRANSCOM INSTR