JPH0545373Y2 - - Google Patents
Info
- Publication number
- JPH0545373Y2 JPH0545373Y2 JP5615988U JP5615988U JPH0545373Y2 JP H0545373 Y2 JPH0545373 Y2 JP H0545373Y2 JP 5615988 U JP5615988 U JP 5615988U JP 5615988 U JP5615988 U JP 5615988U JP H0545373 Y2 JPH0545373 Y2 JP H0545373Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- motor
- electromotive force
- back electromotive
- reference voltage
- 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 8
- 239000000428 dust Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615988U JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615988U JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01163421U JPH01163421U (en]) | 1989-11-14 |
| JPH0545373Y2 true JPH0545373Y2 (en]) | 1993-11-19 |
Family
ID=31282041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5615988U Expired - Lifetime JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545373Y2 (en]) |
-
1988
- 1988-04-26 JP JP5615988U patent/JPH0545373Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01163421U (en]) | 1989-11-14 |
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