US4444055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensating transducer digitizer
Assignee: Individual
•
Filing: 1981-07-20
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Granted: 1984-04-24
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Expires: 2001-07-20
Abstract
Abstract A compensating transducer digitizer circuit provides for compensating the digital output of a measuring transducer with the digital output of a compensating transducer through the interaction of the quasi-digital outputs of the compensating transducer and measuring transducer without altering their quasi-digital outputs compensating transducer.
Inventors
- 👤 Hayati Balkanli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
G; G01; G01D; G01D3/00; G01D3/028; G01D3/036; G01D3/0365
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
315 words
A compensating transducer digitizer for compensating the digital output of a measuring transducer with the digitial output of a compensating transducer, comprising: first accumulator means for accumulating a first preselected number N T1 of M pulses from the measuring transducer; gate means for providing a second preselected number of pulses N, the second preselected number of pulses N being the gated digital output from the compensating transducer when the gate means is at a first state and the gated digital output from the measuring transducer when the gate means is in a second state; second accumulator means for accumulating the second preselected number of pulses N; first load means for loading in the first accumulator means, the M pulses from the measuring transducer during a period of time T i that the first preselected number of pulses, N T1 are being accumulated; second load means for setting the gate means to the first state to load in the second accumulator means, the second preselected number of pulses N that include C pulses from the compensated transducer stored in the second accumulator means during the period of time T 1 that the M pulses are stored in the first accumulator means until N T1 pulses are accumulated and to set the gate means to the second state to load the M pulses from the measuring transducer if the number of C pulses is less than the second preselected number of pulses N, or until the second preselected number of pulses N is accumulated if the second preselected number of pulses N is greather than the first preselected number of pulses N T1 ; and third accumulator means for accumulating the difference of M pulses between the number of C pulses accumulated during the time periopd T 1 and the second preselected number of pulses N, said difference being the compensated digital output of the measuring transducer.
Claim 2
Dependent Claim
315 words
A compensating transducer digitizer for compensating the digital output of a measuring transducer with the digitial output of a compensating transducer, comprising: first accumulator means for accumulating a first preselected number N T1 of M pulses from the measuring transducer; gate means for providing a second preselected number of pulses N, the second preselected number of pulses N being the gated digital output from the compensating transducer when the gate means is at a first state and the gated digital output from the measuring transducer when the gate means is in a second state; second accumulator means for accumulating the second preselected number of pulses N; first load means for loading in the first accumulator means, the M pulses from the measuring transducer during a period of time T i that the first preselected number of pulses, N T1 are being accumulated; second load means for setting the gate means to the first state to load in the second accumulator means, the second preselected number of pulses N that include C pulses from the compensated transducer stored in the second accumulator means during the period of time T 1 that the M pulses are stored in the first accumulator means until N T1 pulses are accumulated and to set the gate means to the second state to load the M pulses from the measuring transducer if the number of C pulses is less than the second preselected number of pulses N, or until the second preselected number of pulses N is accumulated if the second preselected number of pulses N is greather than the first preselected number of pulses N T1 ; and third accumulator means for accumulating the difference of M pulses between the number of C pulses accumulated during the time periopd T 1 and the second preselected number of pulses N, said difference being the compensated digital output of the measuring transducer.
Claim 3
Dependent Claim
88 words
The compensating transducer digitizer for compensating the digital output of a measuring transducer with the digital output of a compensating transducer according to claim 1 wherein the measuring transducer is a pressure transducer and comprises: a bourdon tube; a conductive plate connected in parallel configuration with the bourdon tube separated therefrom by a preselected distance and electrically isolated therefrom; and an electric oscillator connected to the bourdon tube and the conductive plate and whose frequency is determined by the electric reactance between the bourdon tube and the conductor.
Claim 4
Dependent Claim
75 words
The compensating transducer digitizer according to claim 1 wherein the compensating transducer is a temperature transducer and comprises: a bourdon tube filled with a liquid; a conductive plate connected in parallel configuration with the bourdon tube separated therefrom by a preselected distance and electrically isolated therefrom; and an electrical oscillator connected to the bourdon tube and the conductive plate and whose frequency is determined by the electrical reactance between the bourdon tube and the conductor.
Claim 5
Dependent Claim
92 words
The compensating transducer digitizer according to claim 1 wherein the first load means comprises: a decoder circuit for providing a pulse when the first accumulator means has sccumulated the first preselected number, N T1 , of pulses; and a gate whose output is connected to the input of the second accumulator means and which conducts the pulses from the compensating transducer during the period of time when N T1 pulses are being accumulated and blocks the pulses from the compensating transducer during the period of time after N T1 have been accumulated.
Claim 6
Dependent Claim
47 words
The compensating transducer digitizer according to claim 1 wherein the second load means comprises: a gate between the output of the measuring transducer and the second accumulator for conducting the pulses from the measuring transducer to the second accumulator means after the accumulation of N T1 pulses.
Claim 7
Dependent Claim
57 words
The compensating transducer digitizer according to claim 1 further comprising: fourth accumulator means for accumulating a fourth preselected number of pulses N T2 of M pulses from the measuring transducer: and reset means for resetting the first accumulator means and the fourth accumulator means after the accumulating of the second preselected number N T2 of M pulses.
Claim 8
Independent Claim
199 words
A method for compensating the digital output of a measuring transducer with the digital output of a compensating transducer, comprising: accumulating a first preselected number of pulses N T1 from the measuring transducer; providing a second preselected number of pulses N from the compensating transducer when a gate means is in a first state and from the measuring transducer when the gate means is in a second state; storing the pulses from the compensating tranucer during the period of time T 1 that the pulses N T1 are being accumulated; and accumulating the second preselected number of pulses N; setting the gate means to a first state during time T 1 ; storing M pulses from the measuring transducer when the number of pulses stored during the period of time T 1 is less than the preselected number of pulses N and to set the gate means to the second state until the preselected number of pulses N is accumulated, the compensated digital output of the measuring transducer being the difference between the number of pulses from the compensating transducer stored during the period of time T 1 and the accumulating of the second preselected number of pulses N.
Claim 9
Independent Claim
199 words
A method for compensating the digital output of a measuring transducer with the digital output of a compensating transducer, comprising: accumulating a first preselected number of pulses N T1 from the measuring transducer; providing a second preselected number of pulses N from the compensating transducer when a gate means is in a first state and from the measuring transducer when the gate means is in a second state; storing the pulses from the compensating tranucer during the period of time T 1 that the pulses N T1 are being accumulated; and accumulating the second preselected number of pulses N; setting the gate means to a first state during time T 1 ; storing M pulses from the measuring transducer when the number of pulses stored during the period of time T 1 is less than the preselected number of pulses N and to set the gate means to the second state until the preselected number of pulses N is accumulated, the compensated digital output of the measuring transducer being the difference between the number of pulses from the compensating transducer stored during the period of time T 1 and the accumulating of the second preselected number of pulses N.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |