JPH0333327B2 - - Google Patents
Info
- Publication number
- JPH0333327B2 JPH0333327B2 JP62195549A JP19554987A JPH0333327B2 JP H0333327 B2 JPH0333327 B2 JP H0333327B2 JP 62195549 A JP62195549 A JP 62195549A JP 19554987 A JP19554987 A JP 19554987A JP H0333327 B2 JPH0333327 B2 JP H0333327B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic field
- amorphous ferromagnetic
- generating element
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 66
- 230000005294 ferromagnetic effect Effects 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 26
- 230000000747 cardiac effect Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 16
- 230000035699 permeability Effects 0.000 description 14
- 239000011162 core material Substances 0.000 description 13
- 238000005259 measurement Methods 0.000 description 10
- 230000002441 reversible effect Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 206010007687 Carotid artery stenosis Diseases 0.000 description 1
- 229920002160 Celluloid Polymers 0.000 description 1
- 208000002330 Congenital Heart Defects Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 208000006170 carotid stenosis Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 208000028831 congenital heart disease Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 208000018578 heart valve disease Diseases 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000002321 radial artery Anatomy 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000000779 thoracic wall Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195549A JPS6439527A (en) | 1987-08-05 | 1987-08-05 | Transducer for heart function diagram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195549A JPS6439527A (en) | 1987-08-05 | 1987-08-05 | Transducer for heart function diagram |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6439527A JPS6439527A (en) | 1989-02-09 |
| JPH0333327B2 true JPH0333327B2 (en]) | 1991-05-16 |
Family
ID=16342948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62195549A Granted JPS6439527A (en) | 1987-08-05 | 1987-08-05 | Transducer for heart function diagram |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439527A (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420403Y2 (en]) * | 1987-08-13 | 1992-05-11 | ||
| JP3511030B2 (ja) * | 1996-09-11 | 2004-03-29 | 新潟大学長 | 生体信号検出装置 |
-
1987
- 1987-08-05 JP JP62195549A patent/JPS6439527A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6439527A (en) | 1989-02-09 |
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