JPH0415004U - - Google Patents
Info
- Publication number
- JPH0415004U JPH0415004U JP5426990U JP5426990U JPH0415004U JP H0415004 U JPH0415004 U JP H0415004U JP 5426990 U JP5426990 U JP 5426990U JP 5426990 U JP5426990 U JP 5426990U JP H0415004 U JPH0415004 U JP H0415004U
- Authority
- JP
- Japan
- Prior art keywords
- capacitance
- conversion circuit
- voltage conversion
- thickness
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図はこの考案の一実施例による静電容量式
厚さ・枚数検出装置のブロツク図、第２図は第１
図の静電容量−電圧変換回路６の詳細を示す回路
図、第３図は第１図のハイパスフイルタ１２の詳
細を示す回路図、第４図は第３図のハイパスフイ
ルタ１２の特性を示す図、第５図はこの考案に係
る静電容量式厚さ・枚数検出装置を使用した印刷
器の構成図、第６図は第５図の印刷器によつて製
造される伝票用紙２０を示す図、第７図は用紙３
２の取り込み状態に異常が生じた場合を示す図、
第８図は従来の静電容量式厚さ・枚数検出装置の
ブロツク図である。
２……電極、６……静電容量−電圧変換回路、
８……電圧比較回路、１２……ハイパスフイルタ
。
Figure 1 is a block diagram of a capacitive thickness/sheet count detection device according to an embodiment of this invention, and Figure 2 is a block diagram of a capacitive thickness/number of sheets detection device according to an embodiment of this invention.
3 is a circuit diagram showing details of the high-pass filter 12 shown in FIG. 1, and FIG. 4 shows characteristics of the high-pass filter 12 shown in FIG. 3. 5 is a block diagram of a printer using the capacitive thickness/sheet count detection device according to this invention, and FIG. 6 shows a slip paper 20 manufactured by the printer of FIG. 5. Figure 7 is paper 3
A diagram showing a case where an abnormality occurs in the import state of 2.
FIG. 8 is a block diagram of a conventional capacitance type thickness/sheet count detection device. 2... Electrode, 6... Capacitance-voltage conversion circuit,
8... Voltage comparator circuit, 12... High pass filter.
Claims (1)
対の電極、 電極間の静電容量の変化に応じて出力電圧を変
化させる静電容量−電圧変換回路、 静電容量−電圧変換回路の出力電圧に基づいて
、検出対象が所定の厚さもしくは所定の枚数であ
るかを判定する判定回路、 を備えた静電容量式厚さ・枚数検出装置におい
て、 静電容量−電圧変換回路と判定回路との間に高
域通過フイルタを設けたことを特徴とする静電容
量式厚さ・枚数検出装置。[Claims for Utility Model Registration] A pair of electrodes arranged to face each other with a detection target in between, a capacitance-voltage conversion circuit that changes output voltage according to changes in capacitance between the electrodes, and electrostatic capacitance. A capacitive thickness/sheet count detection device comprising: a determination circuit that determines whether a detection target has a predetermined thickness or a predetermined number of sheets based on the output voltage of the capacitance-voltage conversion circuit; - A capacitance-type thickness/number-of-sheets detection device characterized by providing a high-pass filter between a voltage conversion circuit and a determination circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5426990U JPH0415004U (en) | 1990-05-23 | 1990-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5426990U JPH0415004U (en) | 1990-05-23 | 1990-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0415004U true JPH0415004U (en) | 1992-02-06 |
Family
ID=31576184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5426990U Pending JPH0415004U (en) | 1990-05-23 | 1990-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415004U (en) |
-
1990
- 1990-05-23 JP JP5426990U patent/JPH0415004U/ja active Pending
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