JPS6435201A - Displacement detecting apparatus - Google Patents
Displacement detecting apparatusInfo
- Publication number
- JPS6435201A JPS6435201A JP19121987A JP19121987A JPS6435201A JP S6435201 A JPS6435201 A JP S6435201A JP 19121987 A JP19121987 A JP 19121987A JP 19121987 A JP19121987 A JP 19121987A JP S6435201 A JPS6435201 A JP S6435201A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- changed
- thin band
- measured
- change
- 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.)
- Pending
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To detect the displacement of an operating point stably, by a constitution, wherein the relative distance between a magnetic field generating element and the thin band of an amorphous ferromagnetic body is changed when a material to be measured is displaced, and the change in self-inductance of a detecting coil due to said change is detected. CONSTITUTION:A relative distance to a magnetic field generating element 6, which generates a constant magnetic field, is changed with the displacement of a material to be measured 5. A strip shaped thin band 2 of an amorphous ferromagnetic body is arranged so that said distance is changed. A constant minute AC is made to flow through a detecting oil 3, in which said thin band 2 is a magnetic core, and the self-inductance of the coil is detected with a detector circuit 4. When the material to be measured 5 is displaced and the relative distance between the magnetic field generating element 6 and the thin band 2 is changed, the magnetic field, which is applied to the coil wherein the thin band 2 is the magnetic core from the magnetic field generating element 6, is changed. The change is converted into the change in self-inductance of the detecting coil 3, and the displacement of the material to be measured is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19121987A JPS6435201A (en) | 1987-07-30 | 1987-07-30 | Displacement detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19121987A JPS6435201A (en) | 1987-07-30 | 1987-07-30 | Displacement detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6435201A true JPS6435201A (en) | 1989-02-06 |
Family
ID=16270884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19121987A Pending JPS6435201A (en) | 1987-07-30 | 1987-07-30 | Displacement detecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6435201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122254A (en) * | 2006-11-13 | 2008-05-29 | Ulvac Japan Ltd | Differential transformer for displacement sensor in probe type step profiler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127452A (en) * | 1974-08-29 | 1976-03-08 | Mishima Kosan Co Ltd | |
| JPS56158967A (en) * | 1980-05-13 | 1981-12-08 | Matsushita Electric Ind Co Ltd | Magnetism detector |
| JPS5773618A (en) * | 1980-10-24 | 1982-05-08 | Nec Home Electronics Ltd | Linear displacement detecting method |
-
1987
- 1987-07-30 JP JP19121987A patent/JPS6435201A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127452A (en) * | 1974-08-29 | 1976-03-08 | Mishima Kosan Co Ltd | |
| JPS56158967A (en) * | 1980-05-13 | 1981-12-08 | Matsushita Electric Ind Co Ltd | Magnetism detector |
| JPS5773618A (en) * | 1980-10-24 | 1982-05-08 | Nec Home Electronics Ltd | Linear displacement detecting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122254A (en) * | 2006-11-13 | 2008-05-29 | Ulvac Japan Ltd | Differential transformer for displacement sensor in probe type step profiler |
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