JPH0744965Y2 - 紙厚検出装置 - Google Patents
紙厚検出装置Info
- Publication number
- JPH0744965Y2 JPH0744965Y2 JP1990013276U JP1327690U JPH0744965Y2 JP H0744965 Y2 JPH0744965 Y2 JP H0744965Y2 JP 1990013276 U JP1990013276 U JP 1990013276U JP 1327690 U JP1327690 U JP 1327690U JP H0744965 Y2 JPH0744965 Y2 JP H0744965Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- paper
- change
- resonator
- electrode
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 44
- 230000010355 oscillation Effects 0.000 claims description 41
- 230000008859 change Effects 0.000 claims description 34
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000123 paper Substances 0.000 description 75
- 239000000919 ceramic Substances 0.000 description 40
- 239000003990 capacitor Substances 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990013276U JPH0744965Y2 (ja) | 1990-02-14 | 1990-02-14 | 紙厚検出装置 |
US07/654,425 US5198777A (en) | 1990-02-14 | 1991-02-12 | Paper thickness detecting apparatus having a resonator with a resonance point set by a capacitance detecting unit |
EP91301173A EP0442727B1 (en) | 1990-02-14 | 1991-02-13 | Paper thickness detecting apparatus |
DE69122895T DE69122895T2 (de) | 1990-02-14 | 1991-02-13 | Apparat zur Feststellung der Papierdicke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990013276U JPH0744965Y2 (ja) | 1990-02-14 | 1990-02-14 | 紙厚検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03106407U JPH03106407U (en]) | 1991-11-01 |
JPH0744965Y2 true JPH0744965Y2 (ja) | 1995-10-11 |
Family
ID=31516703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990013276U Expired - Lifetime JPH0744965Y2 (ja) | 1990-02-14 | 1990-02-14 | 紙厚検出装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0744965Y2 (en]) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61116603A (ja) * | 1984-11-12 | 1986-06-04 | Fujitsu Ltd | 検出装置 |
JPS61209361A (ja) * | 1985-03-13 | 1986-09-17 | Nec Corp | 静電容量の測定方法 |
-
1990
- 1990-02-14 JP JP1990013276U patent/JPH0744965Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH03106407U (en]) | 1991-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |