JPS60113510U - Physical quantity change detection device - Google Patents
Physical quantity change detection deviceInfo
- Publication number
- JPS60113510U JPS60113510U JP72784U JP72784U JPS60113510U JP S60113510 U JPS60113510 U JP S60113510U JP 72784 U JP72784 U JP 72784U JP 72784 U JP72784 U JP 72784U JP S60113510 U JPS60113510 U JP S60113510U
- Authority
- JP
- Japan
- Prior art keywords
- physical quantity
- change detection
- circuit
- detection device
- quantity 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.)
- Granted
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のテープ終端位置検知装置の回路図、第２
図は本考案の実施例の回路図、第３図は −第２図
の回路の動作波形図、第４図は本考案の他の実施例の回
路図、第５図は第４図の回路の動作 ゝ波形図であ
る。
主要部分の符号の説明、１・・・・・・磁気テープ、４
・・・・・・発光素子、５・・・・・・受光素子、８・
・・・・・レベルコノパレータ、１１・・・・・・レベ
ルシフトダイオード、１２・・・・・・時定数回路の抵
抗、１３・・・・・・時定数回路のコンデンサ。
−尾３図 ′
１． 苓５１２Ｎ′−Figure 1 is a circuit diagram of a conventional tape end position detection device;
The figure is a circuit diagram of an embodiment of the present invention, Figure 3 is an operating waveform diagram of the circuit of Figure 2, Figure 4 is a circuit diagram of another embodiment of the present invention, and Figure 5 is the circuit of Figure 4. This is a waveform diagram of the operation. Explanation of symbols of main parts, 1...Magnetic tape, 4
...... Light emitting element, 5... Light receiving element, 8.
... Level conoperator, 11 ... Level shift diode, 12 ... Time constant circuit resistor, 13 ... Time constant circuit capacitor. -Tail Figure 3' 1. 512N'-
Claims (1)
前記所定物理量に応じた信号と前記時定数回路の出力信
号との間に設定レベル差を付与するレベルシフト回路と
、このしさルシフト回路に゛ よりレベル差を付与
された両信号レベルを比較する比較回路ｙを有し、この
比較回路の出力を前記物理量の変化検知信号とするよう
にしたことを特徴とする物理量変化検知装置。a time constant circuit that delays a signal according to a predetermined physical quantity;
a level shift circuit that provides a set level difference between the signal corresponding to the predetermined physical quantity and the output signal of the time constant circuit; and a comparison that compares the levels of both signals to which the level difference is provided by the physical shift circuit. A physical quantity change detection device comprising a circuit y, the output of the comparison circuit being used as a change detection signal of the physical quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984000727U JPH0629683Y2 (en) | 1984-01-06 | 1984-01-06 | Measured electrical signal level sudden change detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984000727U JPH0629683Y2 (en) | 1984-01-06 | 1984-01-06 | Measured electrical signal level sudden change detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60113510U true JPS60113510U (en) | 1985-08-01 |
| JPH0629683Y2 JPH0629683Y2 (en) | 1994-08-10 |
Family
ID=30472829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984000727U Expired - Lifetime JPH0629683Y2 (en) | 1984-01-06 | 1984-01-06 | Measured electrical signal level sudden change detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629683Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978425A (en) * | 1972-11-30 | 1974-07-29 | ||
| JPS5449165A (en) * | 1977-09-26 | 1979-04-18 | Matsushita Electric Ind Co Ltd | Automatic appearance inspection apparatus |
| JPS5589706A (en) * | 1978-12-28 | 1980-07-07 | Fujitsu Ltd | Inspection system of continuity of optical pattern |
| JPS57184908A (en) * | 1981-05-08 | 1982-11-13 | Jido Keisoku Gijutsu Kenkiyuukumiai | Shape detector |
-
1984
- 1984-01-06 JP JP1984000727U patent/JPH0629683Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978425A (en) * | 1972-11-30 | 1974-07-29 | ||
| JPS5449165A (en) * | 1977-09-26 | 1979-04-18 | Matsushita Electric Ind Co Ltd | Automatic appearance inspection apparatus |
| JPS5589706A (en) * | 1978-12-28 | 1980-07-07 | Fujitsu Ltd | Inspection system of continuity of optical pattern |
| JPS57184908A (en) * | 1981-05-08 | 1982-11-13 | Jido Keisoku Gijutsu Kenkiyuukumiai | Shape detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0629683Y2 (en) | 1994-08-10 |
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