摘要:
A circuit arrangement for signal processing of discrete or continuous signals of at least one CCD component, includes a multiplexer which receives the signals for processing and has an output, a pre-amplifier having an input connected to the output of the multiplexer, and further having an output. Two sample and hold circuits are provided that each have an input connected to the output of the pre-amplifier, each of the sample and hold circuits further having an output. An operational amplifier is provided having a non-inverting input connected to the output of a first of the sample and hold circuits, and an inverting input connected to the output of a second of the sample and hold circuits, the operational amplifier further has an output. A digital-analog converter having an output connected to the non-inverting input of the operational amplifier and puts out a correction signal. A multiplying digital-analog converter is provided having a reference input connected to the output of the operational amplifier, the multiplying digital-analog converter further having an output. A third sample and hold circuit has an input connected to the output of the multiplying digital-analog converter, the third sample and hold circuit further having an output. A buffer has an input connected to the output of the third sample and hold circuit, and further has an output connected to the input of an analog-digital converter.
摘要:
The invention relates to an ultrasound control device for non-destructively inspecting a workpiece. The inventive ultrasound control device comprises a transmitting-receiving sensor provided with an element for connecting to the input surface of a controlled workpiece, a transmitter which is connected to the sensor and sends pulses produced thereby to said sensor, a receiver connected to the sensor and a screen which is connected to the receiver for displaying electric echo signals received by the receiver. The sensor transmits ultrasound pulses which, on one hand are reflected by the input surface and return to said sensor, and penetrate into the workpiece and are reflected at least once by the back wall thereof, on the other hand. Said ultrasound control device also comprises a bar display for visualising the received electric echo signals. At least one signal value displayed on said display in a real time results from one of electric echo signals reflected by the input surface: an input echo reflected by the input surface, at least one echo from the back wall and/or one signal calculated on the basis of several echoes reflected thereby.
摘要:
The invention relates to an ultrasound control device for non-destructively inspecting a workpiece. The inventive ultrasound control device comprises a transmitting-receiving sensor provided with an element for connecting to the input surface of a controlled workpiece, a transmitter which is connected to the sensor and sends pulses produced thereby to said sensor, a receiver connected to the sensor and a screen which is connected to the receiver for displaying electric echo signals received by the receiver. The sensor transmits ultrasound pulses which, on one hand are reflected by the input surface and return to said sensor, and penetrate into the workpiece and are reflected at least once by the back wall thereof, on the other hand. Said ultrasound control device also comprises a bar display for visualising the received electric echo signals. At least one signal value displayed on said display in a real time results from one of electric echo signals reflected by the input surface: an input echo reflected by the input surface, at least one echo from the back wall and/or one signal calculated on the basis of several echoes reflected thereby.
摘要:
The invention relates to a method for determining the threshold value of screens which enable an evaluation of a sound coupling during the ultrasound testing of a series of spot welding joints of a selected type. Initially, a geometrical minimal thickness dMin is established for the spot welding joints. At least one echo of the front surface (entrance echo) is received in addition to one echo of the first reflection on a rear wall of the spot welding joint (first rear wall echo) and at least one further (n-th) rear wall echo. The propagation time tMin of the ultra sound pulse is defined for the path to the front surface to the rear wall and back to the front surface at a minimal thickness dMin and a propagation time tT for the total thickness. A first screen (B1) is set for the signal of the rear wall echo, starting at a moment in time t1S=tE+tMin−tSA and ending at a moment in time t1T=tE+tT+tSE, whereby tSA and tSE are additional small security measures. An n-th screen is correspondingly determined for the n-th rear wall echo. The testing head is oriented differently.
摘要翻译:本发明涉及一种用于确定屏幕的阈值的方法,其能够评估在所选类型的一系列点焊接头的超声波测试期间的声耦合。 最初,针对点焊接头建立几何最小厚度dMin。 除了点焊接头(第一后壁回波)的后壁上的第一反射的一个回波和至少一个第(n)个后壁之外,还接收前表面的至少一个回波(入口回波) 回声。 超声脉冲的传播时间tMin被定义为对于前壁到后壁的路径,并且以最小厚度dMin和总厚度的传播时间tT限定到前表面。 从时刻t 1 S = tE + tMin-tSA开始并在时刻t 1 T = tE + tT + tSE的时刻开始,对后壁回波的信号设定第一画面(B 1) 其中tSA和tSE是额外的小型安全措施。 相应地确定第n个后壁回波的第n个屏幕。 测试头的方向不同。
摘要:
The invention relates to a device (10), for the preparation, execution and evaluation of a non-destructive analysis with one or more suitable analysis devices (20) of any type. The device (10) includes an input device (12), an output device (14), a data store, a data processing unit (16), an interface (18) for connection of the analysis device (14), by means of which data may be transmitted in both directions and a standardised data processing programme. It is possible to generate an analysis flow scheme, by means of the data processing programme, whereby an analysis object (26) can be defined, various analysis regions (28) of the analysis object (26) can be determined, a particular analysis device (20) can be selected, analytically-relevant parameters can be selected and determined for the selected analytical device (20), the type of visualisation and the analysis of the measured analytical values can be determined and the obtained analytical results can be archived and stored.
摘要:
The invention relates to a device (10), for the preparation, execution and evaluation of a non-destructive analysis with one or more suitable analysis devices (20) of any type. The device (10) includes an input device (12), an output device (14), a data store, a data processing unit (16), an interface (18) for connection of the analysis device (14), by means of which data may be transmitted in both directions and a standardised data processing programme. It is possible to generate an analysis flow scheme, by means of the data processing programme, whereby an analysis object (26) can be defined, various analysis regions (28) of the analysis object (26) can be determined, a particular analysis device (20) can be selected, analytically-relevant parameters can be selected and determined for the selected analytical device (20), the type of visualisation and the analysis of the measured analytical values can be determined and the obtained analytical results can be archived and stored. (57) Zusammenfassung: Die Erfindung betrifft eine Vorrichtung (10) für die Vorbereitung, Durchführung und Auswertung einer zerstörungsfreien Prüfung mit einem oder mehreren beliebigen geeigneten Prüfgeräten (20). Die Vorrichtung (10) beinhaltet ein Eingabegerät (12), ein Ausgabegerät (14), einen Datenspeicher, [Fonsetzung auf der nächsten Seite]
摘要翻译:本发明涉及一种用于使用任何类型的一个或多个合适的分析装置(20)准备,执行和评估非破坏性分析的装置(10)。 设备(10)包括输入设备(12),输出设备(14),数据存储器,数据处理单元(16),用于连接分析设备(14)的接口(18),借助于 可以在两个方向上发送数据和标准化的数据处理程序。 可以通过数据处理程序生成分析流程图,由此可以定义分析对象(26),可以确定分析对象(26)的各种分析区域(28),特定分析装置 (20),可以选择和确定所选分析装置(20)的分析相关参数,可以确定可视化类型和分析值,并且可以归档和存储所获得的分析结果 。 (57)Zusammenfassung:Die Erfindung betrifft eine Vorrichtung(10)fürdie Vorbereitung,Durchführungund Auswertung einerzerstörungsfreienPrüfungmit einem oder mehreren beliebigen geeignetenPrüfgeräten(20)。 Die Vorrichtung(10)beinhaltet einEingabegerät(12),einAusgabegerät(14),einen Datenspeicher,[Fonsetzung auf dernächstenSeite]
摘要:
The invention relates to a method for determining the threshold value of screens which enable an evaluation of a sound coupling during the ultrasound testing of a series of spot welding joints of a selected type. Initially, a geometrical minimal thickness dMin is established for the spot welding joints. At least one echo of the front surface (entrance echo) is received in addition to one echo of the first reflection on a rear wall of the spot welding joint (first rear wall echo) and at least one further (n-th) rear wall echo. The propagation time tMin of the ultra sound pulse is defined for the path to the front surface to the rear wall and back to the front surface at a minimal thickness dMin and a propagation time tT for the total thickness. A first screen (B1) is set for the signal of the rear wall echo, starting at a moment in time t1S=tE+tMin−tSA and ending at a moment in time t1T=tE+tT+tSE, whereby tSA and tSE are additional small security measures. An n-th screen is correspondingly determined for the n-th rear wall echo. The testing head is oriented differently.
摘要翻译:本发明涉及一种用于确定屏幕的阈值的方法,其能够评估在所选类型的一系列点焊接头的超声波测试期间的声耦合。 最初,针对点焊接头建立几何最小厚度dMin。 除了点焊接头(第一后壁回波)的后壁上的第一反射的一个回波和至少一个第(n)个后壁之外,还接收前表面的至少一个回波(入口回波) 回声。 超声脉冲的传播时间tMin被定义为对于前壁到后壁的路径,并且以最小厚度dMin和总厚度的传播时间tT限定到前表面。 从时刻t 1 S = tE + tMin-tSA开始并在时刻t 1 T = tE + tT + tSE的时刻开始,对后壁回波的信号设定第一画面(B 1) 其中tSA和tSE是额外的小型安全措施。 相应地确定第n个后壁回波的第n个屏幕。 测试头的方向不同。