JPS62141736U - - Google Patents
Info
- Publication number
- JPS62141736U JPS62141736U JP2972986U JP2972986U JPS62141736U JP S62141736 U JPS62141736 U JP S62141736U JP 2972986 U JP2972986 U JP 2972986U JP 2972986 U JP2972986 U JP 2972986U JP S62141736 U JPS62141736 U JP S62141736U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- coil
- load
- oscillation frequency
- whose
- 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
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図はブロツク図、第３図は発振回路の回路図、第
４図は板ばねの荷重対変位の特性図、第５図はコ
アの変位対発振周波数の特性図である。
１……徒手筋力計、２……上ケース、８……板
ばね、１０……コイル、１２……コア（磁心）、
１３……発振回路、１４……基準カウンタ、１５
……検出カウンタ、１６……減算回路、１７……
最大値メモリ。
Fig. 1 is a sectional view showing one embodiment of the present invention;
3 is a circuit diagram of the oscillation circuit, FIG. 4 is a characteristic diagram of leaf spring load versus displacement, and FIG. 5 is a characteristic diagram of core displacement versus oscillation frequency. 1... Manual muscle strength meter, 2... Upper case, 8... Leaf spring, 10... Coil, 12... Core (magnetic core),
13...Oscillation circuit, 14...Reference counter, 15
...Detection counter, 16...Subtraction circuit, 17...
Maximum value memory.
Claims (1)
、前記磁心が挿入自在に配設され前記磁心の挿入
長さによりインダクタンスが変化するコイルと、
前記コイルを含みインダクタンスの変化に応じて
発振周波数が変化する発振回路とを備え、前記発
振周波数に基づいて荷重値を求めることを特徴と
する荷重検出装置。 a magnetic core that moves according to the displacement of a spring due to a load; a coil in which the magnetic core is freely inserted and whose inductance changes depending on the insertion length of the magnetic core;
A load detection device comprising: an oscillation circuit that includes the coil and whose oscillation frequency changes according to a change in inductance, and obtains a load value based on the oscillation frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2972986U JPS62141736U (en) | 1986-03-01 | 1986-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2972986U JPS62141736U (en) | 1986-03-01 | 1986-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62141736U true JPS62141736U (en) | 1987-09-07 |
Family
ID=30833878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2972986U Pending JPS62141736U (en) | 1986-03-01 | 1986-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62141736U (en) |
-
1986
- 1986-03-01 JP JP2972986U patent/JPS62141736U/ja active Pending
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