JP2516974Y2 - 共振周波数の差による質量測定装置における気体密度の影響の補正装置 - Google Patents
共振周波数の差による質量測定装置における気体密度の影響の補正装置Info
- Publication number
- JP2516974Y2 JP2516974Y2 JP3171390U JP3171390U JP2516974Y2 JP 2516974 Y2 JP2516974 Y2 JP 2516974Y2 JP 3171390 U JP3171390 U JP 3171390U JP 3171390 U JP3171390 U JP 3171390U JP 2516974 Y2 JP2516974 Y2 JP 2516974Y2
- Authority
- JP
- Japan
- Prior art keywords
- mass
- resonance frequency
- change
- gas
- pressure
- 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 - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 21
- 239000010419 fine particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3171390U JP2516974Y2 (ja) | 1990-03-27 | 1990-03-27 | 共振周波数の差による質量測定装置における気体密度の影響の補正装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3171390U JP2516974Y2 (ja) | 1990-03-27 | 1990-03-27 | 共振周波数の差による質量測定装置における気体密度の影響の補正装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03122349U JPH03122349U (enExample) | 1991-12-13 |
| JP2516974Y2 true JP2516974Y2 (ja) | 1996-11-13 |
Family
ID=31534504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3171390U Expired - Fee Related JP2516974Y2 (ja) | 1990-03-27 | 1990-03-27 | 共振周波数の差による質量測定装置における気体密度の影響の補正装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516974Y2 (enExample) |
-
1990
- 1990-03-27 JP JP3171390U patent/JP2516974Y2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03122349U (enExample) | 1991-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |