JPS6438615A - Converter for mechanocardiogram - Google Patents
Converter for mechanocardiogramInfo
- Publication number
- JPS6438615A JPS6438615A JP62194798A JP19479887A JPS6438615A JP S6438615 A JPS6438615 A JP S6438615A JP 62194798 A JP62194798 A JP 62194798A JP 19479887 A JP19479887 A JP 19479887A JP S6438615 A JPS6438615 A JP S6438615A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- displacement
- inductance
- variation
- self
- 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.)
- Granted
Links
Landscapes
- 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)
Abstract
PURPOSE:To enable the detection of displacement of the surface of the body by a simple operation, by providing a thin belt of an amorphous ferromagnetic substance disposed so that the relative distance thereof to a magnetic field generating element fixed on a film is varied by the displacement of the surface of the body. CONSTITUTION:A small magnet 6 generating a certain magnetic field is fixed on the upper part of a film 10 which is made to contact the surface 5 of the body. A strip-shaped thin belt 2 of an amorphous ferromagnetic substance disposed so that the relative distance (x) thereof to the magnet 6 is varied by the displacement of the surface of the body, and a detecting coil 3 which is an inductance element using the thin belt 2 as a core, are provided. A detecting circuit 4 detecting the self- inductance of the coil 3 by making a prescribed minute alternating current flow thereto is provided. A variation in an impressed magnetic field on the coil 3 caused by the variation in the relative distance (x) is converted into a variation in the self-inductance of the coil 3 and detected 4. Thereby a minute displacement or vibration of the surface 5 of the body in the direction of an arrow A can be measured. Besides, a region wherein the distance (x) and the self-inductance are proportional to each other can extend about 1mm on both sides of a point where x=6.5mm for instance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194798A JPS6438615A (en) | 1987-08-04 | 1987-08-04 | Converter for mechanocardiogram |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194798A JPS6438615A (en) | 1987-08-04 | 1987-08-04 | Converter for mechanocardiogram |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438615A true JPS6438615A (en) | 1989-02-08 |
JPH0333010B2 JPH0333010B2 (en) | 1991-05-15 |
Family
ID=16330434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62194798A Granted JPS6438615A (en) | 1987-08-04 | 1987-08-04 | Converter for mechanocardiogram |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438615A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6458427A (en) * | 1987-05-08 | 1989-03-06 | Mitsubishi Electric Corp | Electric discharge machining |
JPH11326034A (en) * | 1998-05-13 | 1999-11-26 | Uchihashi Estec Co Ltd | Noncontact type vibration sensor and vibration detecting method |
JP2016540983A (en) * | 2013-12-13 | 2016-12-28 | ナショナル ユニバーシティ オブ サイエンス アンド テクノロジー エムアイエスアイエス | Mechanical stress sensor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5228159B2 (en) * | 2006-11-01 | 2013-07-03 | 有限会社サンヨウ総研 | Biological reaction recording apparatus and biological reaction recording method |
JP5352800B2 (en) * | 2008-05-19 | 2013-11-27 | 有限会社サンヨウ総研 | Biological reaction recording apparatus and biological reaction recording method |
JP5782590B2 (en) * | 2013-07-24 | 2015-09-24 | 一般財団法人とちぎメディカルセンター | Biological reaction recording device |
JP6268347B2 (en) * | 2015-02-19 | 2018-01-31 | 有限会社サンヨウ総研 | Biological reaction recording device and operating method thereof |
-
1987
- 1987-08-04 JP JP62194798A patent/JPS6438615A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6458427A (en) * | 1987-05-08 | 1989-03-06 | Mitsubishi Electric Corp | Electric discharge machining |
JPH11326034A (en) * | 1998-05-13 | 1999-11-26 | Uchihashi Estec Co Ltd | Noncontact type vibration sensor and vibration detecting method |
JP2016540983A (en) * | 2013-12-13 | 2016-12-28 | ナショナル ユニバーシティ オブ サイエンス アンド テクノロジー エムアイエスアイエス | Mechanical stress sensor |
Also Published As
Publication number | Publication date |
---|---|
JPH0333010B2 (en) | 1991-05-15 |
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