EP0215515A1
Expired / Lapsed
EP
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Wave form analyser, especially transient recorder
Assignee: Bakker Electronics Dongen BV
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Filing: 1986-09-01
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Granted: —
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Expires: 2006-09-01
Abstract
Abstract Wave form analyser, especially transient recorder comprising two adjustable elements (5, 6) for comparing a signal level with at least two detection levels controllable through a logic element (7). The following triggering modes are, for example, possible at this wave form analyser: «sequential triggering", «window triggering» and «alarm triggering».
Inventors
- 👤 Johannes Hermanus Bakker
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 13:22
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04; G01R13/06; G01R13/20; G01R13/22; G01R13/32; G01R13/325
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
189 words
Wave form analyser, especially transient recorder, (15) for digitally recording signals emanating from a transient phenomenon of a relatively short duration, comprising at least one recording module (17) provided with an output (16) which is connected to the transient signals and which is provided with an analog-digital converter (19) and a detection member (1) for detecting the point of time at which the digital storing of a signal in a memory (2) must take place, which detection member is provided with setting means (3) for setting a detection level and with at least one comparing element (5) for comparing a digital signal level with the detection level, whereby when the detection level is passed by the signal level a memory control circuit (4) for controlling said memory (2) is activated, characterized in that said detection member (1) is provided with at least two comparing elements (5, 6) adjustable through said setting means (3) for comparing the signal level with at least two detection levels, and with at least one functionally adjustable logic element (7) connected to the two comparing elements (5, 6) which activates said memory control circuit (4).
Claim 2
Dependent Claim
189 words
Wave form analyser, especially transient recorder, (15) for digitally recording signals emanating from a transient phenomenon of a relatively short duration, comprising at least one recording module (17) provided with an output (16) which is connected to the transient signals and which is provided with an analog-digital converter (19) and a detection member (1) for detecting the point of time at which the digital storing of a signal in a memory (2) must take place, which detection member is provided with setting means (3) for setting a detection level and with at least one comparing element (5) for comparing a digital signal level with the detection level, whereby when the detection level is passed by the signal level a memory control circuit (4) for controlling said memory (2) is activated, characterized in that said detection member (1) is provided with at least two comparing elements (5, 6) adjustable through said setting means (3) for comparing the signal level with at least two detection levels, and with at least one functionally adjustable logic element (7) connected to the two comparing elements (5, 6) which activates said memory control circuit (4).
Claim 3
Dependent Claim
57 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 1, characterized in that the logic element (7) can be functionally adjusted such that the control circuit (4) is activated as soon as the signal level exceeds a first detection level in a pre-set direction after having first exceeded a second detection level in pre-set direction.
Claim 4
Dependent Claim
58 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 1 or 2, characterized in that the logic element (7) can be functionally adjusted and the setting means (3) can be adjusted such that the control circuit (4) is activated as soon as the signal level exceeds only one of both detection levels successively in different directions.
Claim 5
Dependent Claim
50 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 1, 2 or 3, characterized in that the logic element (7) can be functionally adjusted such that the control circuit (4) is activated as soon as the signal level exceeds one of both detection levels in a pre-set direction.
Claim 6
Dependent Claim
36 words
Wave form analyser, especially transient recorder, (15) as claimed in any of the foregoing claims, characterized in that a peak filter (8, 9) is connected between each comparing element (5, 6) and the logic element (7).
Claim 7
Dependent Claim
54 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 5, characterized in that the peak filter can be adjusted such that when samples remain constant during the time period of a pre-set number of samples, said peak filter transmits the output signal of the comparing element (5, 6) to the logic element.
Claim 8
Dependent Claim
58 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 5 or 6, characterized in that the peak filter can be adjusted such that when samples remain constant for less than the time period of a pre-set number of samples, said peak filter transmits the output signal of the comparing element (5, 6) to the logic element.
Claim 9
Dependent Claim
54 words
Wave form analyser, especially transient recorder, (15) as claimed in any of the foregoing claims, characterized by an arithmetic unit (10) for calculating the difference between two samples and by a switching member (11) adjustable by setting means (3) for switching either the signal level or said difference to the comparing elements (5, 6).
Claim 10
Dependent Claim
37 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 8, characterized in that the arithmetic unit (10) can be adjusted such that it arranges and stores the successive differences during a pre-set period of time.
Claim 11
Dependent Claim
65 words
Wave form analyser, especially transient recorder, (15) as claimed in any of the foregoing claims, characterized by a counter (14) adjustable by the setting means (3) and coupled between the logic element (7) and the memory control circuit (4) for supplying an output signal to said memory control circuit (4) after receiving an output signal from said logic element (7) a set number of times.
Claim 12
Dependent Claim
48 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 10, characterized by a turn-off element (12) coupled between the counter (14) and the logic element (7) for turning off said logic element (7) for a period of time that is adjustable by the setting means (3).
Claim 13
Dependent Claim
51 words
Wave form analyser, especially transient recorder, (15) as claimed in claim 10 or 11, characterized by a delaying element (13) coupled between the counter (14) and the memory control element (4) for delaying the output signal of said counter (14) for a period of time adjustable by the setting means (3).
Claim 14
Dependent Claim
85 words
Wave form analyser, especially transient recorder, as claimed in any of the foregoing claims, characterized by a time window circuit (15) connected to the logic element (7) which is adjustable, and adjustable with said logic element, such that after reception of a signal from one of the comparing elements (5, 6) at least one point of time can be set in said logic element (7) using said time window circuit (15) to determine that a signal from the other comparing element (5, 6) is operative.
Claim 15
Dependent Claim
31 words
Wave form analyser, especially transient recorder, as claimed in claim 13, characterized in that two points in time can be set in the logic element using the time window circuit (15).
References Cited (Backward Citations)
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