公开(公告)号：US4119942A

公开(公告)日：1978-10-10

申请号：US703280

申请日：1976-07-07

申请人： Harold M. Merklinger

发明人： Harold M. Merklinger

IPC分类号： G01S3/802 ,  G01S3/80

CPC分类号： G01S3/8027 ,  Y10S367/901 ,  Y10S367/907

摘要： An acoustic direction finder which identifies and displays bearing of an underwater received signal without the requirement of scanning the ambient space. The output signals of hydrophones at the ends of a pair of orthogonally located dipoles are applied to differential amplifiers to provide orthogonal dipole response characteristics, and an in-phase sum of the signal at the center of the dipoles is obtained. The differential amplifier output signals are integrated and the resultant signals are applied to individual multiplying means with the sum signal whereby a pair of X and Y coordinate deflection signals are obtained, which are applied to a display device.

摘要翻译： 识别和显示水下接收信号的轴承而不需要扫描环境空间的声学取向器。 在一对正交偶极子的端部处的水听器的输出信号被施加到差分放大器以提供正交偶极子响应特性，并且获得偶极子中心处的信号的同相和。 差分放大器输出信号被积分，并且所得到的信号被加到具有和信号的各个乘法装置，从而获得一对施加到显示装置的X和Y坐标偏转信号。

公开(公告)号：US4174503A

公开(公告)日：1979-11-13

申请号：US922360

申请日：1978-07-06

申请人： Harold M. Merklinger ,  Orest Z. Bluy

发明人： Harold M. Merklinger ,  Orest Z. Bluy

IPC分类号： H03F3/345 ,  H03F3/50 ,  H03F3/16

CPC分类号： H03F3/345 ,  H03F3/505 ,  H03F2200/372

摘要： Disclosed is a low noise amplifier capable of handling large signals without significant distortion and which is particularly useful as the first electronic stage in hydrophone array systems utilizing piezoelectric sensor elements. The amplifier comprises three stages. The first stage uses an input field effect transistor (FET), which is protected against overload by very low leakage current diodes, and which acts as a voltage-to-current converter. The second stage comprises a junction transistor connected in a common emitter configuration which acts as a current-to-voltage converter. The third stage is a further junction transistor connected as an emitter follower. The overall gain of the amplifier is controlled by a feedback connection from the third stage to the first stage. The second and third stages are powered by a bipolar power supply. The second stage junction transistor has its emitter connected to the positive supply voltage by a pair of diodes forward biased by the supply voltage to provide low distortion and fast overload recovery. The third stage includes a second field effect transistor (FET), in series with the junction transistor of the third stage, which allows enhanced output drive capability. Resistors are connected in series with the base and collector of the third stage junction transistor to provide output short circuit protection.

摘要翻译： 公开了一种能够处理大信号而没有显着失真的低噪声放大器，并且其特别适用于使用压电传感器元件的水听器阵列系统中的第一电子级。 放大器包括三个阶段。 第一级使用输入场效应晶体管（FET），其被非常低的漏电流二极管保护以防过载，并且其用作电压 - 电流转换器。 第二级包括以共发射极配置连接的结型晶体管，其用作电流 - 电压转换器。 第三级是作为射极跟随器连接的另外的结晶体管。 放大器的总体增益由第三级到第一级的反馈连接控制。 第二和第三级由双极电源供电。 第二级结型晶体管的发射极通过正向由电源电压偏置的一对二极管连接到正电源电压，以提供低失真和快速过载恢复。 第三级包括与第三级的结型晶体管串联的第二场效应晶体管（FET），其允许增强的输出驱动能力。 电阻器与第三级结型晶体管的基极和集电极串联连接，以提供输出短路保护。

公开(公告)号：US4155038A

公开(公告)日：1979-05-15

申请号：US850354

申请日：1977-11-10

申请人： Harold M. Merklinger ,  Robert C. Trider

发明人： Harold M. Merklinger ,  Robert C. Trider

IPC分类号： G01R17/00 ,  G01R19/10 ,  G01V13/00 ,  G06G7/16

CPC分类号： G01R17/00 ,  G01R19/10 ,  G01V13/00

摘要： Apparatus for comparing an unknown signal with a reference signal is adapted to determine their ratio and, where a variation exists, to compensate the unknown signal to achieve unity ratio. The apparatus includes circuit means connectable to the signals for obtaining sum and difference signals. Means responsive to the sum and difference signals produce a control signal representing the product of these signals and feedback means responsive to the control signal generate a time-averaged feedback signal that is a measure of the ratio of the mean squares of the unknown and reference signals. Control means are disposed in the path of the unknown signal and are responsive to the feedback signal for varying the amplitude of the unknown signal to equilibrate and stabilize the apparatus when the mean squares of the reference signal and the compensated unknown signal are equal. A method for determining the ratio is disclosed together with embodiments of the apparatus which include an analog signal type as well as an analog-digital hybrid form.

摘要翻译： 用于将未知信号与参考信号进行比较的装置适于确定它们的比例，并且在存在变化的情况下，补偿未知信号以获得单位比。 该装置包括可连接到信号的电路装置，用于获得和差信号。 响应于和和差信号的装置产生表示这些信号的乘积的控制信号，并且响应于控制信号的反馈装置产生时间平均的反馈信号，该反馈信号是未知参考信号和参考信号的均方之比的量度 。 控制装置设置在未知信号的路径中，并且当参考信号和补偿的未知信号的均方相等时，响应于反馈信号来改变未知信号的幅度以平衡和稳定装置。 与包括模拟信号类型以及模拟 - 数字混合形式的装置的实施例一起公开了用于确定比率的方法。