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1. 发明授权

US4005354A Electromagnetic position transducers 失效
标题翻译：电磁位置传感器
公开(公告)号：US4005354A
公开(公告)日：1977-01-25
申请号：US575178
申请日：1975-05-07
申请人： Anthony Brian Plant
发明人： Anthony Brian Plant
IPC分类号： G01D5/20 , G01L1/14 , G01L9/10
CPC分类号： G01L1/14 , G01D5/2066 , G01L9/10
摘要： A position transducer with a variable transformer and a feedback transformer to which an a.c. signal is applied via a variable gain amplifier controlled by the integrated output of a phase-sensitive rectifier. The secondary of the feedback transformer is connected in series with the primary of a coupling transformer coupling the variable transformer to the rectifier and with the secondary of the variable transformer so that in equilibrium there is a null voltage across the primary of this coupling transformer.
摘要翻译：具有可变变压器的位置传感器和反馈变压器。通过由相敏整流器的集成输出控制的可变增益放大器施加信号。反馈变压器的次级与耦合变压器的耦合变压器的一次串联连接到整流器，并与可变变压器的次级耦合，使得在平衡状态下，该耦合变压器的初级端具有零电压。

2. 发明授权

US3944935A Apparatus for generating a d.c. signal proportional to an input frequency 失效
标题翻译：用于产生直流电的装置信号与输入频率成正比
公开(公告)号：US3944935A
公开(公告)日：1976-03-16
申请号：US527235
申请日：1974-11-26
申请人： Anthony Brian Plant
发明人： Anthony Brian Plant
IPC分类号： H03D3/00 , H03K9/06 , H03B3/04 , H03K5/20
CPC分类号： H03K9/06
摘要： An apparatus for generating a d.c. output signal which is proportional to the frequency of an alternating input signal, includes a pulse generator and a counter arranged to count pulses from the generator for a time which is dependent on the input signal frequency. A digital to analog converter is responsive to the count in the counter and also to the d.c. output signal to provide an intermediate d.c. signal which is compared with a d.c. reference signal. The difference between the intermediate and reference signals is integrated to provide the output signal. The arrangement is such that the d.c. output signal is directly proportional to the input signal frequency.
摘要翻译：一种用于产生直流的装置与交流输入信号的频率成比例的输出信号包括脉冲发生器和计数器，该脉冲发生器和计数器被布置成对来自发生器的脉冲进行计数一段取决于输入信号频率的时间。数模转换器响应于计数器中的计数以及直流电平。输出信号提供中间直流信号与直流比较。参考信号。中间参考信号和参考信号之间的差异被集成以提供输出信号。安排是这样的。输出信号与输入信号频率成正比。

3. 发明授权

US3937014A Electric control circuit arrangements for gas turbine engines 失效
标题翻译：燃气涡轮发动机的电气控制电路装置
公开(公告)号：US3937014A
公开(公告)日：1976-02-10
申请号：US519272
申请日：1974-10-30
申请人： Anthony Brian Plant
发明人： Anthony Brian Plant
IPC分类号： F02C7/26 , F02K3/08
CPC分类号： F02C7/26
摘要： A control circuit arrangement for a gas turbine engine has first and second identical control circuits which are responsive to groups of input signals to provide nominally identical first and second output signals. It is arranged that input signals to the first control circuit are nominally identical with corresponding input signals to the second control circuit. Means are provided, responsive to malfunction of either one of the first and second control circuits, to render the malfunctioning circuit inoperative and to render the other of the control circuits operative. A third control circuit is responsive to at least one pair of corresponding input signals to the first and second circuits, to provide a third output signal to the engine. The first, second and third output signals do not control the engine reheat system, and the arrangement may include a fourth control circuit for controlling this reheat system.
摘要翻译：用于燃气涡轮发动机的控制电路装置具有响应于输入信号组的第一和第二相同的控制电路，以提供名义上相同的第一和第二输出信号。设置到第一控制电路的输入信号名义上与对第二控制电路的相应输入信号相同。提供响应于第一和第二控制电路中的任何一个的故障的装置，以使故障电路不起作用并使得控制电路中的另一个可操作。第三控制电路响应于至少一对对应的输入信号到第一和第二电路，以向发动机提供第三输出信号。第一，第二和第三输出信号不控制发动机再热系统，并且该装置可以包括用于控制该再热系统的第四控制电路。

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