公开(公告)号：US4646319A

公开(公告)日：1987-02-24

申请号：US706079

申请日：1985-02-27

Applicant: Joseph C. Engel ,  Dirk J. Boomgaard ,  Leonard C. Vercellotti

Inventor： Joseph C. Engel ,  Dirk J. Boomgaard ,  Leonard C. Vercellotti

IPC: H04B3/56 ,  H04L12/40 ,  H04L5/14

CPC classification number: H04L12/403 ,  H04B3/56 ,  H04L12/40 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5483 ,  H04B2203/5487 ,  H04B2203/5491

Abstract: A bidirectional coupling circuit is provided for carrier based communication and control networks in which a coupling transformer is employed having relatively decoupled primary and secondary windings which are each tuned to the carrier frequency. Separate secondary windings are wound on the same core leg, one of these secondary windings being employed as a transmitter winding which is referenced to a positive supply voltage and the other winding being employed as a receiver winding which is referenced to ground. The coupling transformer is arranged to have a relatively high input impedance at the carrier frequency but due to series resonant effects has a relatively low impedance for undesired signals on either side of the carrier frequency. An operational amplifier is connected to the receiver winding to provide high gain amplification for a signal received from the common network power line without loading the other windings of the transformer. A transistor or FET is connected in series with the transmitter secondary winding to a positive voltage supply so that a relatively high amplitude transmitter signal is produced on the common power line.

Abstract translation: 提供了一种用于基于载波的通信和控制网络的双向耦合电路，其中使用耦合变压器，其具有相对去耦的初级和次级绕组，每个绕组被调谐到载波频率。 单独的次级绕组缠绕在相同的芯柱上，这些次级绕组中的一个被用作以正电源电压为基准的发射器绕组，而另一绕组被用作参考地的接收器绕组。 耦合变压器布置成在载波频率处具有相对高的输入阻抗，但是由于串联谐振效应对于载波频率的任一侧上的不期望信号具有相对较低的阻抗。 一个运算放大器连接到接收器绕组，为从公共网络电力线接收的信号提供高增益放大，而不需要加载变压器的其他绕组。 将晶体管或FET与发射机次级绕组串联连接到正电压源，使得在公共电力线上产生相对高幅度的发送器信号。

公开(公告)号：US4631537A

公开(公告)日：1986-12-23

申请号：US606421

申请日：1984-09-02

Applicant: James A. Neuner ,  Dirk J. Boomgaard ,  Susan A. Wilbur ,  Charles G. Geis

Inventor： James A. Neuner ,  Dirk J. Boomgaard ,  Susan A. Wilbur ,  Charles G. Geis

IPC: G21C17/10 ,  G01B7/00 ,  G01B21/00 ,  G21C17/112 ,  G21C17/12 ,  G08C19/08

CPC classification number: G01B7/003 ,  G21C17/112 ,  G21C17/12

Abstract: A method for temperature compensating a position indicator which includes a sensor for producing an output signal whose magnitude corresponds to the position of an element that is linearly movable between first and second positions and which is subject to changes in temperature within a given temperature range and wherein the output signal of the sensor contains a temperature variable offset component and the rate of increase of the output signal as the element moves from the first to the second position fluctuates with changes in temperature. The method includes measuring the temperature of the medium; generating an electrical representation of an offset correction, relative to a reference temperature, required in the offset component of the output signal of the sensor at the temperature of the element; generating electrical representations of a rate correction factor, relative to a reference temperature, required for the rate of increase in the output signal of the sensor at the temperature of the element; causing the sensor to produce an output signal corresponding to the position of the element; and compensating the output signal of the sensor by forming an electrical representation of the product of the sensor output signal and the rate correction factor at the measured temperature of the medium, and adding to such product the offset correction at the measured temperature of the medium.

Abstract translation: 一种用于温度补偿位置指示器的方法，其包括用于产生输出信号的传感器，该输出信号的大小对应于在第一和第二位置之间可直线移动并且在给定温度范围内经历温度变化的元件的位置，并且其中 传感器的输出信号包含温度可变偏移分量，随着元件从第一位置移动到第二位置时输出信号的增加速率随着温度的变化而波动。 该方法包括测量介质的温度; 产生相对于参考温度的偏移校正的电表示，所述偏移校正在所述元件的温度处所述传感器的输出信号的偏移分量中需要; 产生相对于参考温度的速率校正因子的电表示，所述速率校正因子在元件的温度下传感器的输出信号的增加率所需; 使传感器产生对应于元件位置的输出信号; 以及通过在介质的测量温度下形成传感器输出信号和速率校正因子的乘积的电表示来补偿传感器的输出信号，并且在该测量的介质的测量温度下加上偏移校正。

公开(公告)号：US4118717A

公开(公告)日：1978-10-03

申请号：US806118

申请日：1977-06-10

Applicant: William E. Shoupp ,  Walter V. Bratkowski ,  Dirk J. Boomgaard

Inventor： William E. Shoupp ,  Walter V. Bratkowski ,  Dirk J. Boomgaard

IPC: G03B9/70 ,  G03B15/04 ,  G03B7/08

CPC classification number: G03B9/70 ,  G03B15/0452

Abstract: The "f" stop of a camera having a fixed shutter speed is automatically set by a galvanometer type control component that is energized by a mechanically powered electric generator which constitutes an integral part of the camera. The shutter is tripped in predetermined time-delayed sequence relative to tripping of the generator and the latter is automatically recocked along with the shutter when the film is advanced. Precise and reliable dynamic regulation and setting of the "f " stop as the picture is being taken is thus achieved without the aid of a battery.

Abstract translation: 具有固定快门速度的相机的“f”停止通过由构成相机的组成部分的机械动力发电机激励的电流计型式控制部件自动设定。 相对于发生器的跳闸，快门以预定的时间延迟顺序跳闸，并且当快门被提前时，快门随着快门自动重新插入。 因此，不用电池就可以实现“f”停止的精确可靠的动态调节和设定。