-
91.发明公开METHOD AND APPARATUS FOR MARINE SOURCE DIAGNOSTICS AND GUI FOR OPERATING SAME 有权方法和设备的营业SEEQUELLENDIAGNOSE和GUI
公开(公告)号：EP1488554A2
公开(公告)日：2004-12-22
申请号：EP03723737.7
申请日：2003-03-14
申请人： Input/Output, Inc.
CPC分类号： G01V1/3861 , G01V13/00
摘要： A graphical user interface (GUI) and control system for controlling and testing an acoustic source. The control system includes real-time data processing of individual source near-field measured signatures and synthesis of array far-field signatures. The control system determines individual source out-of-specification conditions and computes far-field signatures based on an array configuration and, when applicable, excluding failed sources. Source, array, and troubleshooting information are presented to a user in real-time over a GUI monitor to allow informed decision-making regarding continued and/or modified survey operations and operational parameters.
-
92.发明公开
公开(公告)号：EP1272863A1
公开(公告)日：2003-01-08
申请号：EP01921515.1
申请日：2001-04-06
申请人： THALES AVIONICS S.A.
摘要： The invention concerns a device for measuring magnetic field(s). Said device comprises at least a measurement acquisition chain (221, 222, 223; 231, 232, 233) comprising a measuring current generator (24), a coil (25), a measuring resistor (26), at least an amplifier (27) and at least an anti-aliasing filter, delivering a measuring voltage. The invention is characterised in that the device for measuring magnetic field(s) comprises means for determining at least an electrical magnitude representing said acquisition chain. Said determining means comprise means for injecting (21) a predetermined calibrating current, including at least two frequency terms at least at two frequencies distinct from that/those of said measuring current, said calibrating current being superimposed to said measuring current. The device for measuring magnetic field(s) further comprises calculating means delivering an estimate of said at least one electrical magnitude at the frequency/frequencies of said measuring current.
-
公开(公告)号：EP1149506A1
公开(公告)日：2001-10-31
申请号：EP99961618.8
申请日：1999-11-10
IPC分类号： H04R9/00
CPC分类号： G01V1/181 , G01P15/132 , G01V13/00
摘要： Force-balance feedback geophone apparatus and methods for characterization of the geophone apparatus. Control inputs (65) provide for switching (61, 63) of a force-balance feedback geophone between operational states, thereby allowing for in situ determination of geophone characteristics. Feedback circuit modification provides for increased bandwidth and a series RC circuit in the reference resistance provides for increased damping without significantly affecting low frequency performance.
-
94.发明公开
公开(公告)号：EP1085306A2
公开(公告)日：2001-03-21
申请号：EP00250302.7
申请日：2000-09-09
发明人： Skinner, Colin W.
IPC分类号： G01H3/00
摘要： The invention pertains to sonar receive arrays. More particularly, the invention pertains to a process for calibrating the amplitude, position and phase angle of an array of underwater receive hydrophones (14) with respect to one another. The process requires projecting an acoustic test signal at a known frequency from a towed underwater acoustic projector (4) toward an array of towed, underwater, interconnected, receive hydrophones (14); detecting and determining the response of the receive hydrophones (14) to said test signal by signal processing means; and calibrating at least one parameter for the operation of the receive hydrophones (14) resulting from the response. Calibrated parameters include the amplitude, position and phase angle of the receive hydrophones relative to one another.
摘要翻译： 本发明涉及声纳接收阵列。 更具体地，本发明涉及用于校准水下接收水听器（14）阵列相对于彼此的振幅，位置和相位角的方法。 该过程需要将已知频率的声学测试信号从拖曳的水下声学投影仪（4）投影到被拖曳的，水下的，相互连接的接收水听器（14）的阵列上。 通过信号处理装置检测和确定接收水听器（14）对所述测试信号的响应; 以及校准至少一个用于由所述响应产生的接收水听器（14）的操作的参数。 校准参数包括接收水听器相对于彼此的振幅，位置和相位角。
-
公开(公告)号：EP0648342B1
公开(公告)日：1997-12-03
申请号：EP93916960.3
申请日：1993-07-02
发明人： ZHOU, Qiang
摘要： A calibration fixture for an MWD logging tool consists of a plurality of concentric co-planar conductive calibration loops (22, 24), mounted on a carrier disk of insulate material (16). The disk positions the calibration loops around the logging tool mandrel coaxially. The logging tool supports conventional transmitter(s) and receiver(s). The calibration loops are terminated with a multiple-tap impedance quantizer (34) for discretely varying the impedance of the calibration loops. When a transmitter is activated to emit an electromagnetic signal, the calibration loops are excited to re-radiate a portion of that signal into the receivers with an intensity that is a function of the loop impedance thereby to simulate the effects of formations having known resistivities.
-
公开(公告)号：EP0735377A3
公开(公告)日：1997-09-03
申请号：EP96200826.4
申请日：1996-03-27
摘要： In a two-channel magnetic metal detector having first and second mutually inductively coupled detection coils (10, 12) connected to first and second detection channels (14, 16), respectively, the inductance of the coils (10, 12) is tested by applying a square wave test signal to the first detection coil (10) and determining if the resulting output signal (CH1) from the second detection channel (16) has a magnitude falling within a range of magnitudes defined by two threshold values stored in a non-volatile memory (E 2 PROM). A microcomputer (42) applies digital signals (DATA) to a digital to analog converter (44) to generate the square wave. The output signal (CH1) from the second detection channel (16) is repetitively sampled and digitized and the digital values (DATA) are transferred to the microcomputer (42) which includes means (66, 68) for comparing the digital values (DATA) with the threshold values. If a comparison determines that the magnitude of the output signal (CH1) from the second detection channel (16) does not fall within the range of magnitudes defined by the threshold values, the microcomputer (42) generates an error indication.
-
97.发明公开
公开(公告)号：EP0648342A4
公开(公告)日：1996-12-18
申请号：EP93916960
申请日：1993-07-02
发明人： ZHOU QIANG
摘要： A calibration fixture for an MWD logging tool consists of a plurality of concentric co-planar conductive calibration loops are mounted around the logging tool mandrel coaxially with the usual transmitter(s) and receivers that are mounted on the tool. The calibration loops are terminated with a multiple-tap impedance quantizing means for discretely varying the impedance of the calibration loops. When a transmitter is activated to emit an electromagnetic signal, the calibration loops are excited to reradiate a portion of that signal into the receivers with an intensity that is a function of the loop impedance thereby to simulate the effects of formations having known resistivities.
-
公开(公告)号：EP0735385A2
公开(公告)日：1996-10-02
申请号：EP96200810.8
申请日：1996-03-26
发明人： Strosser, Richard P.
IPC分类号： G01V3/10
摘要： In a two-channel magnetic metal detector (32) for a forage harvester (10), positive and negative adaptive detection thresholds (71, 73) are varied according to long term changes in the noise component induced in detection coils (40, 42) by moving ferrous parts of the crop feed mechanism. The adaptive detection thresholds (71, 73) are set at levels determined by the positive and negative peak averages of the noise components in the channels (CH0, CH1) while the crop feed mechanism (18, 20-22) is running at normal speed. Start-up transient noise induced in the detection coils (40, 42) as the crop feed mechanism accelerates may exceed the adaptive thresholds (71, 73) as thus set, thereby triggering false indications that a tramp metal object has been detected in the crop feed path. At start-up of the crop feed mechanism, the detection thresholds are raised to prevent false indications. An increase in a channel noise signal is taken as an indication that the crop feed mechanism (18, 20-22) is accelerating. The detection thresholds are then raised to a level (79, 81) above any transient noise level expected during acceleration of the crop feed mechanism. After a predetermined time (T1-T2) sufficient for the feed mechanism to reach normal operating speed, the detection thresholds are set at their adaptive detection levels (71, 73).
摘要翻译： 在用于饲料收获机（10）的双通道磁性金属检测器（32）中，正和负自适应检测阈值（71,73）根据检测线圈（40,42）中感应的噪声分量的长期变化而变化， 通过移动作物饲料机制的黑色部分。 当作物进给机构（18,20-22）以正常速度运行时，自适应检测阈值（71,73）被设置在由通道（CH0，CH1）中的噪声分量的正峰值平均值和负峰值平均值确定的水平 。 随着作物进给机构加速而在检测线圈（40,42）中引发的启动瞬态噪声可能超过如此设置的自适应阈值（71,73），由此触发在作物中检测到杂物金属物体的错误指示 进给路径。 在作物进料机构启动时，提高检测阈值以防止错误指示。 信道噪声信号的增加被认为是作物进给机构（18,20-22）正在加速的指示。 然后将检测阈值提高到在作物进给机构加速期间预期的任何瞬态噪声水平之上的水平（79,81）。 在预定时间（T1-T2）足以使进给机构达到正常运行速度之后，将检测阈值设置为其自适应检测水平（71,73）。
-
99.发明公开
公开(公告)号：EP0735376A2
公开(公告)日：1996-10-02
申请号：EP96200808.2
申请日：1996-03-26
发明人： Strosser, Richard P.
摘要： A metal detector comprises a detection coil (12) disposed in a magnetic field, the ends of the coil (12) being connected through a balanced resistor network (20) to the inputs (21, 23) of a differential amplifier (22). A test signal is injected into the metal detector at a point such that the coil (12) is effectively in series with one branch of the balanced resistor network (20). The injected signal produces a potential difference at the inputs (21, 23) of the differential amplifier (20), the magnitude of the potential difference being dependent on the resistance (R c ) of the detection coil (12). The test signal is generated by a circuit including a microcomputer (42) which successively feeds digital values corresponding to the sine function to a digital-to-analog converter (44), so that the converter generates the test signal in the form of a sine wave. The output signal (CH1) from the differential amplifier (22) is applied to an analog-to-digital converter (40). The microcomputer (42) controls the analog-to-digital converter (40) to repetitively sample the output signal (CH1) from the amplifier (22) and convert each sample to a digital value. The digital values are compared with two threshold values corresponding to the maximum and minimum values the amplifier output signal (CH1) may have when the coil resistance (R c ) is within an acceptable range and when the amplifier output signal (CH1) exceeds the maximum or is less than the minimum value, an error indication is produced.
摘要翻译： 金属检测器包括设置在磁场中的检测线圈（12），线圈（12）的端部通过平衡电阻网络（20）连接到差分放大器（22）的输入端（21,23）。 在使得线圈（12）有效地与平衡电阻网络（20）的一个分支串联的点上，将测试信号注入到金属检测器中。 注入的信号在差分放大器（20）的输入端（21,23）处产生电位差，电位差的大小取决于检测线圈（12）的电阻（Rc）。 测试信号由包括微处理器（42）的电路产生，该微型计算机（42）将与正弦函数相对应的数字值连续地馈送到数模转换器（44），使得转换器以正弦形式产生测试信号 波。 来自差分放大器（22）的输出信号（CH1）被施加到模数转换器（40）。 微型计算机（42）控制模数转换器（40）从放大器（22）重复采样输出信号（CH1），并将每个采样值转换为数字值。 将数字值与当线圈电阻（Rc）在可接受范围内时放大器输出信号（CH1）可能具有的最大值和最小值相对应的两个阈值进行比较，并且当放大器输出信号（CH1）超过最大值或 小于最小值时，产生错误指示。
-
公开(公告)号：EP0505372B1
公开(公告)日：1995-02-01
申请号：EP90916708.2
申请日：1990-11-14
申请人： ROBERT BOSCH GMBH
发明人： HAUSSECKER, Walter
IPC分类号： G01R33/06
CPC分类号： H03K17/9517 , G01B7/023 , G01V13/00
摘要： The proposal is for a process for testing a sensor system consisting of a Hall sensor with a digital signal output (20) and a control magnet movable in relation thereto and a Hall sensor as a device for implementing the process. To this end, the magnetic flux density is detected and assessed via an additional analog signal output (19) of the Hall sensor. Besides the digital position signals it is thereby possible by means of a single sensor to achieve self-checking on whether the distance between the Hall sensor and the control magnet is correct and whether digital position signals can still be expected to be reliably generated.
-
-
-
-
-
-
-
-
-
搜索结果
319 条记录 (耗时 0.015 秒)
