DE3003598A1 - Densitometer - Google Patents
DensitometerInfo
- Publication number
- DE3003598A1 DE3003598A1 DE19803003598 DE3003598A DE3003598A1 DE 3003598 A1 DE3003598 A1 DE 3003598A1 DE 19803003598 DE19803003598 DE 19803003598 DE 3003598 A DE3003598 A DE 3003598A DE 3003598 A1 DE3003598 A1 DE 3003598A1
- Authority
- DE
- Germany
- Prior art keywords
- output
- resistor
- voltage
- input
- current
- 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.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims 6
- 239000000523 sample Substances 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Amplifiers (AREA)
- Manipulator (AREA)
- Measurement Of Current Or Voltage (AREA)
- Ac-Ac Conversion (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/010,021 US4274016A (en) | 1979-02-07 | 1979-02-07 | Voltage-to-current converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3003598A1 true DE3003598A1 (de) | 1980-08-21 |
Family
ID=21743364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803003598 Withdrawn DE3003598A1 (de) | 1979-02-07 | 1980-02-01 | Densitometer |
Country Status (7)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816396A (ja) * | 1981-07-20 | 1983-01-31 | パイオニア株式会社 | 電圧−電流変換回路 |
| US4598251A (en) * | 1982-06-16 | 1986-07-01 | Rosemount Inc. | Frequency to current converter circuit |
| WO1984000087A1 (en) * | 1982-06-16 | 1984-01-05 | Rosemount Inc | Frequency to current converter circuit |
| US4546641A (en) * | 1983-10-17 | 1985-10-15 | International Telephone & Telegraph Corp. | Densitometer |
| US4954831A (en) * | 1986-06-18 | 1990-09-04 | Ekins Robin K | Analog-to-digital converter |
| US5098196A (en) * | 1991-01-04 | 1992-03-24 | The Perkin-Elmer Corporation | Circuit for heating and sensing with a single element |
| US5192618A (en) * | 1991-04-26 | 1993-03-09 | International Business Machines Corporation | Corrosion protection by femn by ion implantation |
| US5434483A (en) * | 1993-10-19 | 1995-07-18 | Sampo Technology Corp. | Automatic compensation circuit for the horizontal deflection of a multifrequency computer monitor |
| US5578949A (en) * | 1995-02-16 | 1996-11-26 | Analogic Corporation | Single stage voltage to current conversion switching system |
| GB2302626B (en) * | 1995-06-24 | 2000-05-03 | Motorola Inc | A high voltage operational amplifier output stage |
| US7239184B2 (en) * | 2005-04-27 | 2007-07-03 | National Instruments Corporation | Low power and high efficiency voltage-to-current converter with improved power supply rejection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602829A (en) * | 1970-01-16 | 1971-08-31 | Us Army | High gain amplifier and feedback arrangement for current driving a single coil |
| US3887880A (en) * | 1973-05-24 | 1975-06-03 | Rca Corp | Bias circuitry for stacked transistor power amplifier stages |
| US3878374A (en) * | 1973-12-10 | 1975-04-15 | Itt | Densitometer |
| US3902111A (en) * | 1974-05-31 | 1975-08-26 | Leeds & Northrup Co | Controller output circuit |
| FR2284037A1 (fr) * | 1974-09-09 | 1976-04-02 | Peugeot & Renault | Procede et dispositif de commande d'un injecteur electromagnetique |
| JPS5146978A (en) * | 1974-10-21 | 1976-04-22 | Iwatsu Electric Co Ltd | Denatsu denryuhenkanki |
-
1979
- 1979-02-07 US US06/010,021 patent/US4274016A/en not_active Expired - Lifetime
- 1979-12-26 JP JP17019379A patent/JPS55149861A/ja active Pending
-
1980
- 1980-01-22 GB GB8002016A patent/GB2043379B/en not_active Expired
- 1980-01-31 NL NL8000604A patent/NL8000604A/nl not_active Application Discontinuation
- 1980-02-01 DE DE19803003598 patent/DE3003598A1/de not_active Withdrawn
- 1980-02-07 CA CA000345193A patent/CA1138929A/en not_active Expired
- 1980-02-07 FR FR8002656A patent/FR2448806A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2043379A (en) | 1980-10-01 |
| CA1138929A (en) | 1983-01-04 |
| FR2448806A1 (fr) | 1980-09-05 |
| US4274016A (en) | 1981-06-16 |
| NL8000604A (nl) | 1980-08-11 |
| GB2043379B (en) | 1983-05-05 |
| JPS55149861A (en) | 1980-11-21 |
| FR2448806B1 (US20020128544A1-20020912-P00008.png) | 1983-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: ITT INDUSTRIES, INC., NEW YORK, N.Y., US |
|
| 8128 | New person/name/address of the agent |
Representative=s name: GRAF, G., DIPL.-ING., PAT.-ASS., 7000 STUTTGART |
|
| 8139 | Disposal/non-payment of the annual fee |