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1.发明授权Calibration circuit for use with a differential input preamplifier in a sensor system 有权用于传感器系统中的差分输入前置放大器的校准电路公开(公告)号：US06571598B2
公开(公告)日：2003-06-03
申请号：US09932565
申请日：2001-08-13
IPC分类号： G01D1800
CPC分类号： G01H3/005 , G01N29/30 , G01N29/34 , G01N29/36 , G01V13/00 , H03F3/45991 , H03F2203/45048
摘要： The calibration circuit is used with a differential input, monolithic integrated circuit preamplifier in a sensor system. The calibration circuit tests the integrity of the sensor, the preamplifier, and the wiring in the sensor system. The calibration circuit includes first and second calibration capacitors having different capacitances connected to the preamplifier input leads. A calibration signal source is connected between the capacitors. The capacitors are preferably implemented on the same integrated circuit as the preamplifier. In operation, a calibration signal of known amplitude is applied to the calibration circuit and the level at the preamplifier output is determined. The level at the preamplifier output indicates certain conditions relating to the integrity of the sensor and its wiring, for example, an open circuit condition or a short circuit condition.
摘要翻译： 校准电路与传感器系统中的差分输入单片集成电路前置放大器一起使用。 校准电路测试传感器系统的传感器，前置放大器和接线的完整性。 校准电路包括具有连接到前置放大器输入引线的不同电容的第一和第二校准电容器。 校准信号源连接在电容器之间。 电容器优选地在与前置放大器相同的集成电路上实现。 在操作中，将已知幅度的校准信号施加到校准电路，并且确定前置放大器输出端的电平。 前置放大器输出端的电平表示与传感器及其接线完整性有关的某些条件，例如开路状况或短路状况。
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公开(公告)号：US06718816B2
公开(公告)日：2004-04-13
申请号：US10390696
申请日：2003-03-19
IPC分类号： G01D1800
CPC分类号： G01H3/005 , G01N29/30 , G01N29/34 , G01N29/36 , G01V13/00 , H03F3/45991 , H03F2203/45048
摘要： The calibration circuit is used with a differential input, monolithic integrated circuit preamplifier in a sensor system. The calibration circuit tests the integrity of the sensor, the preamplifier, and the wiring in the sensor system. The calibration circuit includes first and second calibration capacitors having different capacitances connected to the preamplifier input leads. A calibration signal source is connected between the capacitors. The capacitors are preferably implemented on the same integrated circuit as the preamplifier. In operation, a calibration signal of known amplitude is applied to the calibration circuit and the level at the preamplifier output is determined. The level at the preamplifier output indicates certain conditions relating to the integrity of the sensor and its wiring, for example, an open circuit condition or a short circuit condition.
摘要翻译： 校准电路与传感器系统中的差分输入单片集成电路前置放大器一起使用。 校准电路测试传感器系统的传感器，前置放大器和接线的完整性。 校准电路包括具有连接到前置放大器输入引线的不同电容的第一和第二校准电容器。 校准信号源连接在电容器之间。 电容器优选地在与前置放大器相同的集成电路上实现。 在操作中，将已知幅度的校准信号施加到校准电路，并且确定前置放大器输出端的电平。 前置放大器输出端的电平表示与传感器及其接线完整性有关的某些条件，例如开路状况或短路状况。
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公开(公告)号：US6046632A
公开(公告)日：2000-04-04
申请号：US137866
申请日：1998-08-10
申请人： Timothy B. Straw
发明人： Timothy B. Straw
CPC分类号： H03G1/0088
摘要： A calibration generator responds to a digital signal by generating a diffntial calibration signal with respect to a reference value established by a reference source. The calibration generator includes an input for receiving the digital signal and a differential output for transmitting the differential calibration signal. A voltage divider connects between voltage sources of opposite polarity and equal magnitude for generating a constant magnitude signal across one resistor in the voltage divider. A switch establishes alternate sets of paths from the voltage divider to the differential output. A control responds to the digital signal for controlling the switch thereby to alternate the paths from the voltage divider to the differential output and generate an alternating, fully differential, constant magnitude calibration signal.
摘要翻译： 校准发生器通过相对于由参考源建立的参考值产生差分校准信号来响应数字信号。 校准发生器包括用于接收数字信号的输入端和用于发送差分校准信号的差分输出端。 分压器连接相反极性和相等幅度的电压源，以在分压器中的一个电阻器上产生恒定的幅度信号。 开关建立从分压器到差分输出的交替路径组。 控制器响应用于控制开关的数字信号，从而将从分压器到差分输出的路径交替，并产生交替的全差分恒定幅度校准信号。
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公开(公告)号：US5339285A
公开(公告)日：1994-08-16
申请号：US45143
申请日：1993-04-12
申请人： Timothy B. Straw
发明人： Timothy B. Straw
CPC分类号： H04R17/08 , H03F3/45479
摘要： A preamplifier for a piezoelectric sensor requiring a high-impedance, low ise interface circuit. The preamplifier is a single, monolithic integrated circuit that can be mounted directly onto or inside a miniature sensor without degrading the sensor's performance. The preamplifier performs signal amplification with a full-differential amplifier that includes common-mode feedback. A pair of feedback capacitors together with the sensor capacitance control the voltage gain of the preamplifier over much of it's useful operating range of 100 Hz to 100 kHz. The preamplifier circuit also has feedback resistors that discharge any accumulated DC voltage which might appear on the capacitors. Also the feedback resistors form a high pass filter which rejects low .frequency background noise from the sensor.
摘要翻译： 用于需要高阻抗，低噪声接口电路的压电传感器的前置放大器。 前置放大器是一个单一的单片集成电路，可以直接安装在微型传感器上或内部，而不会降低传感器的性能。 前置放大器使用包括共模反馈的全差分放大器执行信号放大。 一对反馈电容器与传感器电容一起控制前置放大器的电压增益大部分是100 Hz至100 kHz的有用工作范围。 前置放大器电路还具有反馈电阻器，可以释放可能出现在电容器上的任何累积的直流电压。 此外，反馈电阻器形成高通滤波器，其拒绝来自传感器的低频背景噪声。
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公开(公告)号：US4518915A
公开(公告)日：1985-05-21
申请号：US463103
申请日：1983-02-02
申请人： Philip G. Danforth , Thomas G. Bucko , Kenneth R. Galliher , Joseph T. Lucia , Richard L. Miller , Timothy B. Straw
发明人： Philip G. Danforth , Thomas G. Bucko , Kenneth R. Galliher , Joseph T. Lucia , Richard L. Miller , Timothy B. Straw
CPC分类号： G01R31/2848 , G01K15/00
摘要： A stand-alone electronic simulator device for testing expendable bathythegraph (XBT) systems. The device is inserted into an XBT system in place of an expendable probe for purposes of checking the performance of the rest of the system with an active test signal. The test device simulates an operational XBT probe by switching a highly accurate and stable array of resistance values across its output. The switching rate is controlled by a stable internal time base such that the test pattern plotted on the strip chart recorder and transmitted to an external system will always look the same if the system is functioning properly. Temperature stability in the test device, essential because of the broad ambient temperature range which may be encountered in use, allows checks of the system for probe depth timing linearization in addition to temperature measurement.
摘要翻译： 一种独立的电子模拟装置，用于测试消耗性热水图（XBT）系统。 该装置被插入到XBT系统中以代替消耗式探头，以便通过主动测试信号检查系统的其余部分的性能。 测试设备通过在其输出端切换高精度和稳定的电阻值阵列来模拟可操作的XBT探针。 开关速率由稳定的内部时基控制，使得绘图在条形图记录器上并传输到外部系统的测试图形在系统正常工作时总是看起来相同。 测试装置中的温度稳定性，由于在使用中可能遇到的宽的环境温度范围是必不可少的，除了温度测量之外，还允许系统检查探针深度定时线性化。
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公开(公告)号：US08674824B1
公开(公告)日：2014-03-18
申请号：US13567306
申请日：2012-08-06
IPC分类号： G08B1/08
摘要： A sonar sensor array is provided that has reduced power consumption, data bandwidth and data storage requirements. The sensor array may be configured to a sleep mode, low-resolution mode and high-resolution mode. In the sleep mode, all sonar sensors are configured in the sleep mode and no acoustic signals are detected. In the low-resolution mode, a limited number of sonar sensors are powered and acoustic signals received by the sonar sensors are processed with reduced bandwidth and reduced dynamic range, and then stored on a data storage device. In the high-resolution mode, the acoustic signals detected by the sonar sensors are processed with full signal bandwidth and full dynamic range and then stored on the data storage device.
摘要翻译： 提供了一种降低功耗，数据带宽和数据存储要求的声纳传感器阵列。 传感器阵列可以被配置为睡眠模式，低分辨率模式和高分辨率模式。 在睡眠模式下，所有声纳传感器都配置为睡眠模式，不会检测到声音信号。 在低分辨率模式中，有限数量的声纳传感器被供电，声纳传感器接收到的声信号以减小的带宽和减小的动态范围进行处理，然后存储在数据存储装置上。 在高分辨率模式下，声纳传感器检测到的声信号以全信号带宽和全动态范围进行处理，然后存储在数据存储设备上。
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公开(公告)号：US5724315A
公开(公告)日：1998-03-03
申请号：US655104
申请日：1996-05-29
CPC分类号： G01V1/186 , B06B1/0644
摘要： An omnidirectional ultrasonic microprobe hydrophone is disclosed. Applicans include underwater mine detection, explosive shock testing, high wave number measurements, medical imaging, and therapeutic systems. The apparatus includes at least two lead zirconate titanate (PZT) pressure sensing elements having a plurality of columnar voids formed therein. The pressure sensing elements are deposited on a metallic or nonmetallic substrate which provides mechanical support for the microprobe hydrophone. Electrical connection to the pressure sensing elements is made by deposition of conductors and insulators on the substrate material. Wire bonds are used to attach wire leads for connection to a supporting structure containing a preamplifier. Line arrays and planar arrays of microprobe hydrophone elements are also disclosed.
摘要翻译： 公开了一种全向超声波微探针水听器。 应用包括水下探测，爆炸冲击测试，高波数测量，医学成像和治疗系统。 该装置包括至少两个锆钛酸铅（PZT）压力传感元件，其中形成有多个柱状空隙。 压力感测元件沉积在金属或非金属基底上，为微探针水听器提供机械支撑。 通过在基板材料上沉积导体和绝缘体来实现与压力传感元件的电连接。 线接头用于连接导线以连接到包含前置放大器的支撑结构。 还公开了微波探头水听器元件的线阵列和平面阵列。
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公开(公告)号：US08768647B1
公开(公告)日：2014-07-01
申请号：US13238425
申请日：2011-09-21
IPC分类号： G01C21/16
CPC分类号： G01C21/16
摘要： A high performance solid-state heading sensor for underwater towed arrays is taught that combines high quality MEMS sensor components with data processing filters to resolve performance limitations present in prior art heading sensors. The heading sensor employs rate gyroscopes, accelerometers, magnetometers and a customized Kalman filter formulation implemented on a micro-controller to improve performance in determining the roll, pitch and heading of a towed array.
摘要翻译： 教导了用于水下拖缆阵列的高性能固态航向传感器，其将高质量的MEMS传感器部件与数据处理过滤器相结合，以解决现有技术航向传感器中存在的性能限制。 航向传感器采用速率陀螺仪，加速度计，磁力计和在微控制器上实现的定制卡尔曼滤波器配方，以提高确定牵引阵列的滚动，俯仰和航向的性能。
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公开(公告)号：US08867312B1
公开(公告)日：2014-10-21
申请号：US14172092
申请日：2014-02-04
IPC分类号： G01V1/00
摘要： A sonar system is provided with the system having comparatively reduced power consumption, data bandwidth and data storage requirements. A sensor array of the system is configured to a sleep mode, low-resolution mode and high-resolution mode. In the sleep mode, all sonar sensors are configured in the mode and no acoustic signals are detected or processed. In the low-resolution mode, a limited number of sonar sensors are powered and acoustic signals received by the sensors are processed with reduced bandwidth and dynamic range, and then stored on a data storage device. In the high-resolution mode, the acoustic signals detected by the sonar sensors are processed with full signal bandwidth and dynamic range and then stored on the data storage device. A 10 bit mu-Law encoding scheme is used to reduce the amplitude scale of measurement or dynamic range of the digitized acoustic signals.
摘要翻译： 提供一种声纳系统，该系统具有相对较低的功耗，数据带宽和数据存储要求。 系统的传感器阵列配置为睡眠模式，低分辨率模式和高分辨率模式。 在睡眠模式下，所有声纳传感器都以模式配置，没有检测或处理声信号。 在低分辨率模式中，有限数量的声纳传感器被供电，并且由传感器接收的声信号以减小的带宽和动态范围进行处理，然后存储在数据存储设备上。 在高分辨率模式下，声纳传感器检测到的声信号以全信号带宽和动态范围进行处理，然后存储在数据存储设备上。 使用10位mu-Law编码方案来减小数字化声信号的测量幅度或动态范围。
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公开(公告)号：US08750077B2
公开(公告)日：2014-06-10
申请号：US13531808
申请日：2012-06-25
申请人： Michael J. Obara , Timothy B. Straw
发明人： Michael J. Obara , Timothy B. Straw
IPC分类号： G01S15/08
CPC分类号： G01S15/003 , G01S7/52004 , G01S15/876
摘要： An acoustic ranging system and method of use is provided that measures the magnitude of the separation of a pair of towed acoustic line arrays at a discrete point along the length of each array. One array acts as the measurement source, while the other array acts as a frequency-shifted echo repeater. The source array incorporates one sonar transmitter and two sonar receivers. The system further includes a configurable frequency shifter that enables one measurement source to make measurements with multiple repeater arrays.
摘要翻译： 提供了一种声学测距系统和使用方法，其测量沿着每个阵列的长度的离散点处的一对拖曳声线阵列的分离幅度。 一个阵列作为测量源，而另一个阵列作为频移回波中继器。 源阵列包含一个声纳发射机和两个声纳接收机。 该系统还包括可配置的移频器，其使得一个测量源能够利用多个中继器阵列进行测量。
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