公开(公告)号：US10761106B2

公开(公告)日：2020-09-01

申请号：US16438674

申请日：2019-06-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Gary L. Hess ,  Kirk A. Lillestolen

IPC: G01R33/09 ,  G01P3/46 ,  G01D5/20 ,  G01P3/488 ,  G01P3/489

Abstract: A speed detection device includes a comparator module, a sensor lead with a node connected to the comparator module, and a limit set module. The limit set module is connected to the sensor lead node and to the comparator by an upper limit lead and a lower limit lead to provide upper and lower limits to the comparator that vary according to amplitude variation in voltage applied to the sensor lead.

公开(公告)号：US20200225063A1

公开(公告)日：2020-07-16

申请号：US16246956

申请日：2019-01-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Gary L. Hess ,  Michael A. Wilson

IPC: G01D5/243

Abstract: A system for determining a phase angle of a sensor waveform relative to an excitation waveform includes a controller that provides an excitation signal having an excitation frequency and a sample signal having four times the excitation frequency. An exciter provides a sinusoidal excitation waveform at the excitation frequency to a primary winding, thereby inducing a sensor waveform in a secondary winding. An analog-to-digital converter (ADC) measures a first and second voltage of the sensor waveform separated in time by the period of the sample frequency, and a wrap-around ADC measures a first and second voltage of the sinusoidal excitation waveform. The first voltage measurements are made at the same time, and the second voltage measurements are made at the same time. The system calculates the phase angle based on the first voltage measurements and the second voltage measurements.

公开(公告)号：US20200225062A1

公开(公告)日：2020-07-16

申请号：US16246918

申请日：2019-01-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Gary L. Hess ,  Michael A. Wilson

IPC: G01D5/22 ,  H01F21/06 ,  H01F27/28

Abstract: A system for determining an amplitude of a sinusoidal output waveform from a sensor includes a controller configured to provide a sample signal having a sample frequency that is four times a frequency of a sinusoidal excitation waveform provided to the sensor. The sensor has inductively-coupled primary and secondary windings that produce the sinusoidal output waveform from the secondary winding when the excitation waveform is provided to the primary winding. An analog-to-digital converter measures a first and second voltage of the sensor waveform separated in time by the period of the sample frequency, and the system calculates the amplitude based on the measurements of the first and second voltages.

公开(公告)号：US09726705B2

公开(公告)日：2017-08-08

申请号：US14457954

申请日：2014-08-12

Applicant: Hamilton Sundstrand Corporation ,  Simmonds Precision Products, Inc.

Inventor： Richard A. Poisson ,  Scott R. Durkee ,  Gary L. Hess ,  Michael Abbott

IPC: G01R31/02 ,  G01R17/12

CPC classification number: G01R31/025 ,  G01R17/12

Abstract: An interface circuit for a bridge sensor has a switch that connects to a resistive bridge circuit. The resistive bridge circuit includes a first input terminal, a second input terminal, and a pair of resistive branches that connect between the first and second input terminals. Both of the resistive branches include an output terminal. The switch is connected to the first input terminal and is in series with both resistive branches for connecting and disconnecting a voltage source from the resistive branch output terminals.

公开(公告)号：US09581674B2

公开(公告)日：2017-02-28

申请号：US14813273

申请日：2015-07-30

Applicant: Hamilton Sundstrand Corporation

Inventor： Gary L. Hess ,  Scott M. Covington ,  Loyal A. Wiens ,  Eric Petersen

IPC: G01R1/02 ,  G01R35/00 ,  G01R19/32

CPC classification number: G01R35/00 ,  G01R19/32 ,  G01R35/005

Abstract: A dynamic calibrating current sensor control system includes an input power supply that generates an input current and a current sensor interposed between the input power supply and the load. The current sensor is configured to output at least one current signal indicating a level of current delivered to the load. The dynamic calibrating current sensor control system also comprises an electronic switching control circuit that generates at least one control signal to selectively connect the input power supply to the load, and an electronic drift suppression circuit in signal communication with the current sensor and the switching control circuit. The drift suppression circuit is configured to generate a corrected current signal in response to applying an offset value to the current signal. The offset value cancels the drift current from the current signal in response to connecting the input power supply to the load.

Abstract translation: 动态校准电流传感器控制系统包括产生输入电流的输入电源和插在输入电源和负载之间的电流传感器。 电流传感器被配置为输出指示传送到负载的电流电平的至少一个电流信号。 动态校准电流传感器控制系统还包括产生至少一个控制信号以选择性地将输入电源连接到负载的电子开关控制电路，以及与电流传感器和开关控制电路进行信号通信的电子漂移抑制电路 。 漂移抑制电路被配置为响应于对当前信号应用偏移值而产生校正的电流信号。 响应于将输入电源连接到负载，偏移值抵消来自电流信号的漂移电流。

公开(公告)号：US09383405B2

公开(公告)日：2016-07-05

申请号：US13859810

申请日：2013-04-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Gary L. Hess ,  James Quigley, Jr.

IPC: H02H9/04 ,  G01R31/28

CPC classification number: G01R31/2827 ,  H02H9/041 ,  H02H9/042

Abstract: A lightning protection circuit includes a first lightning protection branch including at least one transient voltage suppression (TVS) protection element, and a testing element integral to the lightning protection circuit. The testing element is operable to test a functionality of the lightning protection circuit while he lightning protection circuit is installed in an electronic control system. A controller is connected to the testing element, such that the controller receives sensed signals from the testing element.

Abstract translation: 雷电保护电路包括第一防雷分支，其包括至少一个瞬态电压抑制（TVS）保护元件，以及与雷电保护电路成一体的测试元件。 测试元件可操作以在雷电保护电路安装在电子控制系统中时测试防雷电路的功能。 控制器连接到测试元件，使得控制器从测试元件接收感测到的信号。