Generation method of frequency and shape waveforms used for human impedance measuring

A technology of human body impedance and generation method, which is applied in the direction of diagnostic recording/measurement, application, medical science, etc., can solve the problems such as the structure is difficult to realize, and achieve the effect of good human body impedance and good test results

Inactive Publication Date: 2015-12-09
CHIPSEA TECH SHENZHEN CO LTD
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Problems solved by technology

However, the above-mentioned method is only to measure the impedance of the human body at a specific frequency and waveform (equal square wave). In fact, during the measurement process, the waveform and frequency need to be adjusted, and the above-mentioned structure is difficult to realize

Method used

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  • Generation method of frequency and shape waveforms used for human impedance measuring
  • Generation method of frequency and shape waveforms used for human impedance measuring
  • Generation method of frequency and shape waveforms used for human impedance measuring

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Please refer to figure 1 As shown, the method for generating the frequency and shape waveform for human body impedance measurement implemented by the present invention is characterized in that the method includes the following steps:

[0028] 101. First write the clock frequency division coefficient, frequency division clock cycle coefficient K and waveform data into a non-volatile memory (such as OTP, MTP, Flash, etc.) through the programming interface;

[0029] The clock frequency division coefficient includes a high-level frequency division coefficient M and a low-level level coefficient...

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Abstract

The invention discloses a generation method of frequency and shape waveforms used for human impedance measuring in the field of bioelectronics measuring. The generation method includes: writing clock frequency division coefficient, frequency division clock cycle period coefficient K and waveform data into a nonvolatile memory through a burning interface; reading out the clock frequency division coefficient and the frequency division clock cycle period coefficient from the nonvolatile memory; using a frequency division clock to read the waveform data from the nonvolatile memory, and outputting the data according to certain rules. By controlling the clock frequency division coefficient and frequency division clock cycle period, frequency and shape of generated waveforms can be adjusted to acquire better testing results of human impedance.

Description

technical field [0001] The invention belongs to the technical field of bioelectronic measurement, in particular to a method for measuring human body impedance. Background technique [0002] Since the study of bioimpedance in connection with human health, the research, measurement methods and equipment related to this aspect have undergone great development. Especially as people pay more attention to their own health, various instruments related to bio-impedance measurement have emerged as the times require. For example, the BC-300 body composition analyzer in the United States, the TBF series civil body weight-body fat measuring instrument of Japan TANITA company, etc. All these measurements involving bioimpedance are based on the AC sine wave as the excitation power to the anthropometric circuit. There is no denying that this approach works. But the circuit of the whole system is quite complex and difficult to simplify. [0003] The principle of human body impedance mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053
Inventor 张伟伟
Owner CHIPSEA TECH SHENZHEN CO LTD
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