GB1095695A - Improvements in and relating to digital voltmeters - Google Patents
Improvements in and relating to digital voltmetersInfo
- Publication number
- GB1095695A GB1095695A GB46061/65A GB4606165A GB1095695A GB 1095695 A GB1095695 A GB 1095695A GB 46061/65 A GB46061/65 A GB 46061/65A GB 4606165 A GB4606165 A GB 4606165A GB 1095695 A GB1095695 A GB 1095695A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- counter
- fed
- threshold value
- comparator
- 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
- 230000003321 amplification Effects 0.000 abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
1,095,695. Measuring voltages. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 1, 1965 [Nov. 4, 1964], No. 46061/65. Heading G4H. Apparatus for measuring an analogue input voltage U x comprises a comparator 1 into which is fed the voltage U x and a compensation voltage U c representative of the count in a counter 14, the output voltage from the comparator U v = U x - U c being fed via amplifiers 8, 9, 10 and threshold devices 11, 12, 13 to control the counter 14. In the form shown the difference voltage U v is fed to gate 11 having a threshold value 111 mV to pass a pulse to the most significant decade 15 of counter 14 if the voltage exceeds the threshold value. Similarly the difference voltage after an amplification by 10 at amplifier 9 is fed to gate 12 having a threshold value 110 to pass the pulse to the second decade 16 of the counter if this value is exceeded. After a further amplification by 10 the voltage is fed to gate 13 having a threshold value 50 mV to control the least significant decade 17 of the counter 14. The counter 14 controls a voltage divider 18 which feeds back to the comparator 1 the compensation voltage U c corresponding to the count attained in the counter for the process to be repeated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6412789A NL6412789A (en) | 1964-11-04 | 1964-11-04 | |
| BE671783A BE671783A (en) | 1964-11-04 | 1965-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1095695A true GB1095695A (en) | 1967-12-20 |
Family
ID=25656336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46061/65A Expired GB1095695A (en) | 1964-11-04 | 1965-11-01 | Improvements in and relating to digital voltmeters |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE671783A (en) |
| DE (1) | DE1283368B (en) |
| FR (1) | FR1454098A (en) |
| GB (1) | GB1095695A (en) |
| NL (1) | NL6412789A (en) |
| SE (1) | SE307990B (en) |
-
1964
- 1964-11-04 NL NL6412789A patent/NL6412789A/xx unknown
-
1965
- 1965-10-29 FR FR36616A patent/FR1454098A/en not_active Expired
- 1965-10-30 DE DEN27555A patent/DE1283368B/en active Pending
- 1965-11-01 GB GB46061/65A patent/GB1095695A/en not_active Expired
- 1965-11-01 SE SE14089/65A patent/SE307990B/xx unknown
- 1965-11-03 BE BE671783A patent/BE671783A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6412789A (en) | 1966-05-05 |
| SE307990B (en) | 1969-01-27 |
| BE671783A (en) | 1966-05-03 |
| FR1454098A (en) | 1966-07-22 |
| DE1283368B (en) | 1968-11-21 |
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