US3818207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting a measuring voltage into values not proportional thereto
Assignee: Individual
•
Filing: 1972-08-28
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Granted: 1974-06-18
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Expires: 1992-08-28
Abstract
Abstract The invention relates to an apparatus for converting a measuring voltage into a second voltage which is not proportional to the measuring voltage. The apparatus comprises a first linear circuit element at the measuring voltage source and a network of additional linear circuit elements connected thereto. The network may be connected to earth. A quotient measuring means has a numerator input and a denominator input and also has a zero input variable with respect to a fixed reference point and which serves as a variable reference point for the numerator and denominator input voltages. The linear circuit elements may be resistors. One or more diodes may be incorporated into the network. If the measuring voltage is alternating, then an inductor or capacitor may be included in the network.
Inventors
- 👤 G Zschimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G01; G01K; G01K7/00; G01K7/02; G01K7/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
Apparatus for converting a measuring voltage into a second voltage which is not proportional to the measuring voltage comprising a first linear circuit element across which there is a drop in said measuring voltage, a network of linear circuit elements connected to said first linear circuit element and to a fixed reference point, a quotient measuring means having a numerator input and a denominator input and also having a zero input variable with respect to said fixed reference point and serving as a variable reference point for the numerator and denominator input voltages, so that from the measuring voltage, two auxiliary voltages are formed of which the one is between the numerator input and the zero input and the other is between the denominator input and the zero input.
Claim 2
Dependent Claim
129 words
Apparatus for converting a measuring voltage into a second voltage which is not proportional to the measuring voltage comprising a first linear circuit element across which there is a drop in said measuring voltage, a network of linear circuit elements connected to said first linear circuit element and to a fixed reference point, a quotient measuring means having a numerator input and a denominator input and also having a zero input variable with respect to said fixed reference point and serving as a variable reference point for the numerator and denominator input voltages, so that from the measuring voltage, two auxiliary voltages are formed of which the one is between the numerator input and the zero input and the other is between the denominator input and the zero input.
Claim 3
Dependent Claim
12 words
Apparatus according to claim 1, wherein said linear circuit elements comprise resistors.
Claim 4
Dependent Claim
129 words
Apparatus according to claim 2, wherein there is provided a first resistor across which there is a drop in the measuring voltage, and said network comprises second and third resistors in series with said first resistor, fourth and fifth resistors together in series and in parallel with said first and second resistors, sixth and seventh resistors together in series and in parallel with said first, second and third resistors, and wherein the said numerator input, the said zero input and the said denominator input of the said quotient measuring means are respectively connected to the network between said forth and fifth resistors, between said first and second resistors, and between said sixth and seventh resistors, and wherein said first resistor has a resistance of finite value greater than zero.
Claim 5
Dependent Claim
20 words
An apparatus according to claim 1, wherein at least one non-linear circuit element, is replaced by a non-linear circuit element.
Claim 6
Dependent Claim
29 words
An apparatus according to claim 1 wherein one of the linear circuit elements is replaced by a circuit element whose impedance varies as a function of an external factor.
Claim 7
Dependent Claim
78 words
An apparatus according to claim 1, wherein in the case where the measuRing voltage source is remote from the network such that the resistance of leads therebetween assumes significant proportions, that lead resistance through which current flows when a measurement is being made has, in parallel, a resistor of high resistance compared with that lead resistance, which resistor of high resistance forms part of the network, and is arranged to be selectively connected to said fixed reference point.
Claim 8
Dependent Claim
54 words
An apparatus according to claim 6, wherein a switch is provided operative to isolate each of the three inputs of the quotient measuring means, each such switch being coupled with a further switch actuable in parallel with its associated input switch, and each further switch having one pole connected to said fixed reference point.
Claim 9
Dependent Claim
38 words
An apparatus according to claim 7, wherein the resistor of high resistance is constituted as two resistors in series connected to said fixed reference point via a said further switch connected between the two resistors of high resistance.
Claim 10
Dependent Claim
39 words
An apparatus according to claim 8, wherein the two resistors constituting said resistor of high resistance are proportional to two resistors of the network between which the denominator input of the quotient measuring means is connected to the network.
Claim 11
Dependent Claim
112 words
Apparatus for converting a measuring voltage into values which are not proportional thereto but are proportional to a non-electrical quantity affecting the measuring voltage, comprising means having non-linear characteristics for generating said measuring voltage in dependence upon the said quantity, a quotient measuring means, said quotient measuring means comprising a numerator input and a denominator input and also a zero input variable with respect to a fixed reference point for the numerator and denominator input voltages so that from the measuring voltage, two auxiliary voltages are formed of which the one is between the numerator input and the zero input and the other is between the denominator input and the zero input.
Claim 12
Dependent Claim
112 words
Apparatus for converting a measuring voltage into values which are not proportional thereto but are proportional to a non-electrical quantity affecting the measuring voltage, comprising means having non-linear characteristics for generating said measuring voltage in dependence upon the said quantity, a quotient measuring means, said quotient measuring means comprising a numerator input and a denominator input and also a zero input variable with respect to a fixed reference point for the numerator and denominator input voltages so that from the measuring voltage, two auxiliary voltages are formed of which the one is between the numerator input and the zero input and the other is between the denominator input and the zero input.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |