CN1771884A - Inductive impedance detecting electrode - Google Patents
Inductive impedance detecting electrode Download PDFInfo
- Publication number
- CN1771884A CN1771884A CN 200510061543 CN200510061543A CN1771884A CN 1771884 A CN1771884 A CN 1771884A CN 200510061543 CN200510061543 CN 200510061543 CN 200510061543 A CN200510061543 A CN 200510061543A CN 1771884 A CN1771884 A CN 1771884A
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- Prior art keywords
- organism
- detecting electrode
- inductive impedance
- impedance detecting
- impedance
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- 230000001939 inductive effect Effects 0.000 title claims abstract description 19
- 230000006698 induction Effects 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The inductive impedance detecting electrode includes rectangularly arranged inducing coils and integrated multiplex analog switching circuit. After the organism to be detected and one inductive impedance detecting electrode are set between two conducting plates, AC voltage is applied across the conducting plates. Owing to different distributing impedances in the different parts of the organism, different AC currents are induced in the corresponding inducing coils. The AC currents are detected with external equipment, so as to calculate the distributed impedance of the organism. The present invention measures the impedance of organism in non-contact mode, has greatly raised measurement efficiency and can also measure the organism with complicated bent surface.
Description
Technical field
The present invention relates to a kind of inductive impedance detecting electrode.
Background technology
Measuring bio-impedance all needs to place two electrodes usually at organism surface, and electrode has two usually, and one of them conductive area is bigger, be fixed on organism body surface somewhere, often be called reference electrode, another is placed on needs sites measured, often is called exploring electrode.If can realize non-contact measurement, can improve measurement efficient greatly, and reduce the interference that the organism surface complicated bend brings.
Summary of the invention
The object of the present invention is to provide a kind of inductive impedance detecting electrode: inductive impedance detecting electrode is made up of the induction coil that several are the matrix arrangement; Organism part and a slice inductive impedance detecting electrode that needs are detected are placed between two conductive plates, apply alternating voltage at the conductive plate two ends, because the distribution impedance difference of organism part, the alternating current that its corresponding inductive impedance detecting electrode inner inductive coil two ends induce is also different, by the alternating current at all induction coil two ends of external Equipment Inspection, just can calculate the distribution impedance of detected organism part.
The technical solution used in the present invention is as follows: comprise induction coil and analog multichannel switch integrated circuit.
The useful effect that the present invention has is:
It adopts non-contacting method to measure the organism impedance, can improve measurement efficient greatly, and can measure the organism part with complicated bend surface.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
The sketch map that Fig. 2 is to use the present invention that organism a part is measured.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, it comprises induction coil Qpq, analog multichannel switch integrated circuit UXi, UYj the present invention, p=1 wherein, and 2,3 ..., s; Q=1,2,3 ..., t; I=1,2,3 ..., m; J=1,2,3 ..., n.
Induction coil Qpq can be printed on the flexible or rigid printed circuit board (PCB).Induction coil has s * t, and each coil all is to be made by conductor, and has surrounded certain area.According to electromagnetic induction principle, when passing through the changes of magnetic field of coil, can produce faradic current in the coil.In order to measure the voltage at all induction coil two ends, use the input of m 8 path analoging switch integrated circuit UXi to link to each other with the alignment of induction coil, use the input of n 8 path analoging switch integrated circuit UYj to link to each other with the line of induction coil, the a certain moment is provided gating signal INHXi and the input select signal Ai of certain 8 path analoging switch integrated circuit UXi by computer or specific circuit, Bi, Ci, provide gating signal INHYj and the input select signal Dj of certain 8 path analoging switch integrated circuit UYj simultaneously, Ej, Fj, just can make certain coil Qpq and resistance R 1 form the loop, the voltage at measuring resistance R1 two ends just can obtain the electric current that coil Qpq generates.Each coil of gating successively just can obtain the induced current at all coils two ends, and then extrapolate the distribution of impedance of the organism part of these coil correspondences at short notice.
The step of certain organism specific part being carried out the vicarious impedance detection is as follows:
(1) as shown in Figure 2, tested organism part 2 (being a hands shown in the figure) is placed between two pole plates 1 regularly;
(2) distance between the tested organism part of scanning 2 surfaces and two battery lead plates 1 is set up the spatial distribution of its distance;
(3) inductive impedance detecting electrode 3 is joined between two pole plates 1, two pole plates 1, detected organism part 2, inductive impedance detecting electrodes 3 are arranged parallel to each other;
(4) distance between two pole plates 1 of measurement is measured inductive impedance detecting electrode 3 and the distance between its nearer pole plate 1;
(5) between two pole plates 1, apply alternating voltage;
(6) as shown in Figure 1, successively from top to bottom, from a left side and 8 path analoging switch integrated circuit UXi and the UYi that right gate winding Qpq connects, corresponding gating signal INHXi, INHYj and input select signal Ai, Bi, Ci, Dj, Ej, Fj promptly are set, just can make this coil Qpq and resistance R 1 form the loop, the voltage at measuring resistance R1 two ends just can calculate the electric current that coil Qpq generates;
(7) write down the electric current that detected s * t coil generates and set up a form, compensate according to detected electric current and tested organism part 2 and the distance between pole plate 1 and the inductive impedance detecting electrode 3, set up the relative distribution of impedance of tested organism part 2.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (3)
1, inductive impedance detecting electrode is characterized in that: induction coil (Qpq), analog multichannel switch integrated circuit (UXi, Uyj), and p=1 wherein, 2,3 ..., s; Q=1,2,3 ..., t; I=1,2,3 ..., m; J=1,2,3 ..., n.
2, inductive impedance detecting electrode according to claim 1 is characterized in that: described induction coil (Qpq) can be printed on the flexible or rigid printed circuit board (PCB).
3, inductive impedance detecting electrode according to claim 1 is characterized in that: described induction coil (Qpq) is matrix and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510061543 CN1771884A (en) | 2005-11-14 | 2005-11-14 | Inductive impedance detecting electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510061543 CN1771884A (en) | 2005-11-14 | 2005-11-14 | Inductive impedance detecting electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1771884A true CN1771884A (en) | 2006-05-17 |
Family
ID=36759145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510061543 Pending CN1771884A (en) | 2005-11-14 | 2005-11-14 | Inductive impedance detecting electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1771884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113017599A (en) * | 2015-06-19 | 2021-06-25 | 三星电子株式会社 | Electronic device for measuring information related to human body and method of operating the same |
-
2005
- 2005-11-14 CN CN 200510061543 patent/CN1771884A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113017599A (en) * | 2015-06-19 | 2021-06-25 | 三星电子株式会社 | Electronic device for measuring information related to human body and method of operating the same |
| CN113017599B (en) * | 2015-06-19 | 2024-03-29 | 三星电子株式会社 | Electronic device for measuring information related to human body and method of operating the same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |