JPH0416373U - - Google Patents
Info
- Publication number
- JPH0416373U JPH0416373U JP5765490U JP5765490U JPH0416373U JP H0416373 U JPH0416373 U JP H0416373U JP 5765490 U JP5765490 U JP 5765490U JP 5765490 U JP5765490 U JP 5765490U JP H0416373 U JPH0416373 U JP H0416373U
- Authority
- JP
- Japan
- Prior art keywords
- bridge circuit
- test coils
- resistors
- connection points
- test
- 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
- 230000035945 sensitivity Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
第１図は本考案測定用ブリツジ回路の一実施例
の回路図、第２図は同上の感度調整器の構成を示
す系統図である。第３図、第４図、第５図はそれ
ぞれ従来のブリツジ回路の回路図、第６図は第５
図における抵抗器の抵抗値と試験コイルのインピ
ーダンスの比に対する検出感度の関係を示す線図
である。
１……Ｎｏ．１試験コイル、２……Ｎｏ．２試
験コイル、３……Ｎｏ．１感度調整器、４……Ｎ
ｏ．２感度調整器、５……発振器、６……比較器
、７……調整器、８……可変抵抗器、９……設定
器、１０……Ｎｏ．１抵抗器、１１……Ｎｏ．２
抵抗器、１２……可変抵抗器。
FIG. 1 is a circuit diagram of an embodiment of the measurement bridge circuit of the present invention, and FIG. 2 is a system diagram showing the configuration of the same sensitivity adjuster. Figures 3, 4, and 5 are circuit diagrams of conventional bridge circuits, respectively, and Figure 6 is a circuit diagram of a conventional bridge circuit.
FIG. 3 is a diagram showing the relationship between detection sensitivity and the ratio between the resistance value of the resistor and the impedance of the test coil in the figure. 1...No. 1 test coil, 2...No. 2 test coils, 3...No. 1 Sensitivity adjuster, 4...N
o. 2 Sensitivity adjuster, 5... Oscillator, 6... Comparator, 7... Adjuster, 8... Variable resistor, 9... Setting device, 10... No. 1 resistor, 11...No. 2
Resistor, 12...variable resistor.
Claims (1)
の接続点及び試験コイル同士の接続点を入力端子
とするブリツジ回路を構成し、上記試験コイルの
インピーダンス変化を検出する測定用ブリツジ回
路において、上記抵抗器に感度調整機能を持たせ
たことを特徴とする測定用ブリツジ回路。 In a bridge circuit for measuring, in which two resistors and two test coils constitute a bridge circuit whose input terminals are the connection points between the resistors and the connection points between the test coils, and detect impedance changes of the test coils. , a measurement bridge circuit characterized in that the resistor described above has a sensitivity adjustment function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990057654U JP2548816Y2 (en) | 1990-05-31 | 1990-05-31 | Bridge circuit for measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990057654U JP2548816Y2 (en) | 1990-05-31 | 1990-05-31 | Bridge circuit for measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0416373U true JPH0416373U (en) | 1992-02-10 |
| JP2548816Y2 JP2548816Y2 (en) | 1997-09-24 |
Family
ID=31582561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990057654U Expired - Lifetime JP2548816Y2 (en) | 1990-05-31 | 1990-05-31 | Bridge circuit for measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548816Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056990A (en) * | 1973-09-14 | 1975-05-19 |
-
1990
- 1990-05-31 JP JP1990057654U patent/JP2548816Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056990A (en) * | 1973-09-14 | 1975-05-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2548816Y2 (en) | 1997-09-24 |
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