GB1592700A - Two-wire transmitter for use in an admittance measuring system for monitoring the condition of materials - Google Patents
Two-wire transmitter for use in an admittance measuring system for monitoring the condition of materials Download PDFInfo
- Publication number
- GB1592700A GB1592700A GB4855977A GB4855977A GB1592700A GB 1592700 A GB1592700 A GB 1592700A GB 4855977 A GB4855977 A GB 4855977A GB 4855977 A GB4855977 A GB 4855977A GB 1592700 A GB1592700 A GB 1592700A
- Authority
- GB
- United Kingdom
- Prior art keywords
- admittance
- transmitter
- coupled
- current
- output
- 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
Links
- 239000000463 material Substances 0.000 title claims description 7
- 238000012544 monitoring process Methods 0.000 title description 3
- 239000000523 sample Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 4
- 238000007599 discharging Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 39
- 230000005669 field effect Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- SRVFFFJZQVENJC-IHRRRGAJSA-N aloxistatin Chemical group CCOC(=O)[C@H]1O[C@@H]1C(=O)N[C@@H](CC(C)C)C(=O)NCCC(C)C SRVFFFJZQVENJC-IHRRRGAJSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/743,618 US4146834A (en) | 1974-09-19 | 1976-11-22 | Admittance measuring system for monitoring the condition of materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1592700A true GB1592700A (en) | 1981-07-08 |
Family
ID=24989477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4855977A Expired GB1592700A (en) | 1976-11-22 | 1977-11-22 | Two-wire transmitter for use in an admittance measuring system for monitoring the condition of materials |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5387254A (enrdf_load_stackoverflow) |
| CA (1) | CA1102411A (enrdf_load_stackoverflow) |
| DE (2) | DE2751864A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1592700A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3729031A1 (de) * | 1987-08-31 | 1989-03-16 | Ver Foerderung Inst Kunststoff | Verfahren zur messung von dielektrischen materialeigenschaften |
| SI9200073A (sl) * | 1992-05-06 | 1993-12-31 | Andrej Zatler | Nivojsko stikalo |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3706980A (en) * | 1970-04-27 | 1972-12-19 | Drexelbrook Controls | Rf system for measuring the level of materials |
| US3679938A (en) * | 1970-09-29 | 1972-07-25 | Westinghouse Electric Corp | Electrical disconnector |
| US3781672A (en) | 1971-05-10 | 1973-12-25 | Drexelbrook Controls | Continuous condition measuring system |
| US3807231A (en) | 1971-07-01 | 1974-04-30 | R Spaw | Automatic level measuring and control system |
| US3993947A (en) * | 1974-09-19 | 1976-11-23 | Drexelbrook Controls, Inc. | Admittance measuring system for monitoring the condition of materials |
| JPS5840125B2 (ja) * | 1974-11-25 | 1983-09-03 | 株式会社島津製作所 | セイデンヨウリヨウ − チヨクリユウデンアツヘンカンソウチ |
-
1977
- 1977-11-21 CA CA291,340A patent/CA1102411A/en not_active Expired
- 1977-11-21 DE DE19772751864 patent/DE2751864A1/de active Granted
- 1977-11-21 DE DE19772760460 patent/DE2760460C2/de not_active Expired - Lifetime
- 1977-11-22 GB GB4855977A patent/GB1592700A/en not_active Expired
- 1977-11-22 JP JP14055277A patent/JPS5387254A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA1102411A (en) | 1981-06-02 |
| JPS5387254A (en) | 1978-08-01 |
| DE2751864A1 (de) | 1978-05-24 |
| DE2751864C2 (enrdf_load_stackoverflow) | 1991-01-24 |
| DE2760460C2 (enrdf_load_stackoverflow) | 1991-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931122 |