US4086805A
Expired / Lapsed
US
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Apparatus for evaluating measurement signals
Assignee: Keller Spezialtechnik Pyro Werk GmbH
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Filing: 1976-04-12
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Granted: 1978-05-02
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Expires: 1996-04-12
Abstract
Abstract Apparatus for evaluating a measurement signal having an initial transient issuing into a more stationary value include equipment for monitoring the rate of change of the measurement signal. This monitoring equipment issues a control signal when that rate of change falls below a predetermined value. An analysis of the measurement signal is initiated in response to the latter control signal. Apparatus for evaluating at least two measurement signals generated by two transducer probes and having mutually overlapping initial transients issuing into more stationary values at different times include equipment for determining the time sequence wherein the measurement signals issue into the more stationary values. The measurement signals are sequentially applied to evaluating equipment in accordance with that determined time sequence.
Inventors
- 👤 Eckart Kinderling
- 👤 Herwig Erauw
- 👤 Alfons Rudolf
- 👤 Helmut Klintworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
G; G01; G01D; G01D1/00
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
141 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means for determining when said measurement signal has reached a predetermined minimum value; means connected to said determining means and said monitoring means for disabling said monitoring of said rate of change until said determination has been effected; and means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal.
Claim 2
Dependent Claim
141 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means for determining when said measurement signal has reached a predetermined minimum value; means connected to said determining means and said monitoring means for disabling said monitoring of said rate of change until said determination has been effected; and means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal.
Claim 3
Dependent Claim
53 words
Apparatus as claimed in claim 1, wherein: said monitoring means include means for differentiating said measurement signal to provide a derivative signal, for comparing the value of said derivative signal to a threshold value and for generating said control signal when said value of the derivative signal has fallen below said threshold value.
Claim 4
Dependent Claim
28 words
Apparatus as claimed in claim 1, including: means connected to said monitoring means for adjusting the sensitivity of said monitoring means as a function of said measurement signal.
Claim 5
Dependent Claim
22 words
Apparatus as claimed in claim 3, wherein: said adjusting means comprise means for adjusting the sensitivity of said monitoring means in steps.
Claim 6
Dependent Claim
29 words
Apparatus as claimed in claim 1, including: means connected to said monitoring means for varying the range of operation of said monitoring means inversely relative to said measurement signal.
Claim 7
Dependent Claim
55 words
Apparatus as claimed in claim 1, wherein: said determining means include means for receiving said measurement signal and for issuing an output signal when the value of said received signal has exceeded a predetermined threshold value, and bistable means connected to the latter means for issuing a clearance signal in response to said output signal.
Claim 8
Dependent Claim
41 words
Apparatus as claimed in claim 1, wherein: said determining means include means for determining the rise time of said measurement signal and for disabling said monitoring of said rate of change until said rise time has reached a predetermined lower limit.
Claim 9
Dependent Claim
44 words
Apparatus as claimed in claim 1, wherein: said determining means include means for effecting a comparison of an amplitude excursion of said initial transient with a stationary value of said measurement and means for selectively enabling said monitoring means in response to said comparison.
Claim 10
Dependent Claim
206 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for receiving said measurement signal from said probe; means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; selectively actuable means connected between said receiving means and said monitoring means for applying said received signal to said monitoring means; means connected to said receiving and said applying means for sensing a discontinuity in said received signal and for interrupting said application of said received signal to said monitoring means in response to a sensing of said discontinuity; first storing means for storing said received measurement signal and means for applying said stored measurement signal to said monitoring means upon said interruption of said received signal; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal, including second storing means for storing in response to said control signal and in said analyzing means only said more stationary value of the measurement signal.
Claim 11
Dependent Claim
206 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for receiving said measurement signal from said probe; means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; selectively actuable means connected between said receiving means and said monitoring means for applying said received signal to said monitoring means; means connected to said receiving and said applying means for sensing a discontinuity in said received signal and for interrupting said application of said received signal to said monitoring means in response to a sensing of said discontinuity; first storing means for storing said received measurement signal and means for applying said stored measurement signal to said monitoring means upon said interruption of said received signal; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal, including second storing means for storing in response to said control signal and in said analyzing means only said more stationary value of the measurement signal.
Claim 12
Dependent Claim
53 words
Apparatus as claimed in claim 9, wherein: said monitoring means include means for differentiating said applied signal to provide a derivative signal, for comparing the value of said derivative signal to a threshold value and for generating said control signal when said value of the derivative signal has fallen below said threshold value.
Claim 13
Dependent Claim
56 words
Apparatus as claimed in claim 9, wherein: said applying means include switching means between said receiving means and monitoring means; said sensing and interrupting means include means for selectively opening said switching means; and said first storing means include an analog storing element connected to said applying means between said switching means and said monitoring means.
Claim 14
Dependent Claim
21 words
Apparatus as claimed in claim 9, including: means between said receiving means and said monitoring means for delaying said received signal.
Claim 15
Dependent Claim
136 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value and having an overshoot in said initial transient, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal; means for detecting said overshoot; and means connected to said detecting means and monitoring means for disabling said monitoring means until said overshoot has been detected.
Claim 16
Dependent Claim
136 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value and having an overshoot in said initial transient, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal; means for detecting said overshoot; and means connected to said detecting means and monitoring means for disabling said monitoring means until said overshoot has been detected.
Claim 17
Dependent Claim
132 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal; means for imposing a delay on said measurement signal prior to its application to said monitoring means; and means for varying said delay as a function of said measurement signal.
Claim 18
Dependent Claim
132 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; means connected to said initiating means for analyzing said measurement signal, including means for storing in response to said control signal only said more stationary value of the measurement signal; means for imposing a delay on said measurement signal prior to its application to said monitoring means; and means for varying said delay as a function of said measurement signal.
Claim 19
Dependent Claim
85 words
In apparatus for analyzing at least two measurement signals generated by two transducer probes and having mutually overlapping initial transients issuing into more stationary values at different times, the improvement comprising in combination: means for determining the time sequence wherein said measurement signal issue into said more stationary values; means for analyzing each of said measurement signals; and means connected to said determining means and said analyzing means for sequentially applying said measurement signals to said analyzing means in response to said determined time sequence.
Claim 20
Dependent Claim
85 words
In apparatus for analyzing at least two measurement signals generated by two transducer probes and having mutually overlapping initial transients issuing into more stationary values at different times, the improvement comprising in combination: means for determining the time sequence wherein said measurement signal issue into said more stationary values; means for analyzing each of said measurement signals; and means connected to said determining means and said analyzing means for sequentially applying said measurement signals to said analyzing means in response to said determined time sequence.
Claim 21
Dependent Claim
29 words
Apparatus as claimed in claim 15, including: means in said analyzing means for changing a range of operation of said analyzing means as a function of said measurement signals.
Claim 22
Dependent Claim
56 words
Apparatus as claimed in claim 15, wherein: said transducer probes include a first probe for measuring a temperature of a metallic melt, and a second probe for measuring an oxygen content of said melt; and said sequential applying means comprise means for connecting first said first probe and then said second probe to said analyzing means.
Claim 23
Dependent Claim
38 words
Apparatus as claimed in claim 17, including: a third probe for measuring the temperature of a cooling melt; and means in said sequential applying means for connecting said third probe to said analyzing means after said second probe.
Claim 24
Dependent Claim
21 words
Apparatus as claimed in claim 17, including: immersible means for jointly immersing said first and second probes into said metallic melt.
Claim 25
Dependent Claim
27 words
Apparatus as claimed in claim 15, including: means connected to said analyzing means for varying parameters of the analysis of said measurement signals in said sequential application.
Claim 26
Dependent Claim
53 words
Apparatus as claimed in claim 15, wherein said analyzing means include: first analyzing means for one of said measurement signals and second analyzing means for another of said measurement signals; and means common to said first and second analyzing means for selectively distributing said measurement signals to said first and second analyzing means.
Claim 27
Dependent Claim
50 words
Apparatus as claimed in claim 15, including: means for determining for each measurement signal when the particular measurement signal has reached a predetermined value; and means connected to said sequential applying means for inhibiting a sequential application of said measurement signals until each measurement signal has reached its predetermined value.
Claim 28
Dependent Claim
65 words
Apparatus as claimed in claim 15, including: means for monitoring the rate of change of at least a first of said measurement signals and for generating a control signal when said rate of change falls below a predetermined value; and means connected to said monitoring means and said analyzing means for enabling an analysis of said first measurement signal in response to said control signal.
Claim 29
Dependent Claim
37 words
Apparatus as claimed in claim 23, including: means connected to said monitoring means and said sequential applying means for controlling the sequential application of said measurement signals to said analyzing means in response to said control signal.
Claim 30
Dependent Claim
110 words
Apparatus as claimed in claim 24, including: means for monitoring the rate of change of a first of said measurement signals and for generating a first control signal when said rate of change falls below a predetermined value, and for monitoring the rate of change of a second of said measurement signals and for generating a second control signal when said rate of change of said second measurement signal falls below a predetermined value; means connected to said monitoring means and said analyzing means for sequentially applying said first and second measurement signals to said monitoring means and said analyzing means in response to said first and second control signals.
Claim 31
Dependent Claim
117 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means for effecting a comparison of an amplitude excursion of said initial transient with a stationary value of said measurement signal and for selectively enabling said monitoring means in response to said comparison; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
Claim 32
Dependent Claim
117 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means for effecting a comparison of an amplitude excursion of said initial transient with a stationary value of said measurement signal and for selectively enabling said monitoring means in response to said comparison; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
Claim 33
Dependent Claim
117 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value and having an overshoot in said initial transient, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means for detecting said overshoot; means connected to said detecting means and monitoring means for disabling said monitoring means until said overshoot has been detected; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
Claim 34
Dependent Claim
117 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value and having an overshoot in said initial transient, the improvement comprising in combination: means for monitoring the rate of change of said measurement signal for generating a control signal when said rate of change falls below a predetermined value; means for detecting said overshoot; means connected to said detecting means and monitoring means for disabling said monitoring means until said overshoot has been detected; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
Claim 35
Dependent Claim
107 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for imposing a delay on said measurement signal; means for varying said delay as a function of said measurement signal; means for monitoring the rate of change of said varying delay measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
Claim 36
Dependent Claim
107 words
In apparatus for analyzing a measurement signal of a transducer probe having an initial transient issuing into a more stationary value, the improvement comprising in combination: means for imposing a delay on said measurement signal; means for varying said delay as a function of said measurement signal; means for monitoring the rate of change of said varying delay measurement signal for generating a control signal when said rate of change falls below a predetermined value; means connected to said monitoring means for initiating an analysis of said measurement signal in response to said control signal; and means connected to said initiating means for analyzing said measurement signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |