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1.发明授权Air core gauge fixed voltage signal and variable pulse width modulation signal interchanged control system therefor 失效空芯量规固定电压信号和可变脉宽调制信号互换控制系统
公开(公告)号：US5296804A
公开(公告)日：1994-03-22
申请号：US941623
申请日：1992-09-08
摘要： A pulse-width modulation system provides means for controlling dual-coil, air-core gauges over 360 degrees. The system moves a dial needle from one octant of the gauge to the next in response to coded data representing measurands by holding one coil at 100% duty cycle while applying a PWM of a varying duty signal to the other coil. When the magnitude of the measurand dictates that the needle should move into another octant of the dial, the PWM signal and the 100% duty cycle signal are interchanged between the coils in a manner permitting the needle to move to other octant of the dial.
摘要翻译： 脉宽调制系统提供了控制360度以上双线圈，空心计的装置。 响应于表示被测量的编码数据，通过将一个线圈保持在100％占空比，系统将拨号针从量规的一个八分圆移动到下一个线圈，同时向另一个线圈施加变化的占空比信号的PWM。 当被测量的大小表示针头应该移动到表盘的另一个八分圆时，PWM信号和100％占空比信号在线圈之间互换，从而允许针头移动到表盘的其他八分圆。
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公开(公告)号：US5007035A
公开(公告)日：1991-04-09
申请号：US546608
申请日：1990-06-29
IPC分类号： G04F10/00
CPC分类号： G04F10/00
摘要： A distance pulse unit measures the period between valid edges of asymmetrically shaped pulses from a distance pulse sensor. The unit counts individual clock pulse or averages eight individual clock pulses used to determine the period. The averaging occurs if the frequency of the sensor pulses are above a chosen frequency. The averaging aids in reducing the effects of the asymmetry of the sensor pulses.
摘要翻译： 距离脉冲单元测量来自距离脉冲传感器的非对称形状脉冲的有效边缘之间的周期。 单位计数单个时钟脉冲或平均用于确定周期的八个单独的时钟脉冲。 如果传感器脉冲的频率高于选定的频率，则发生平均。 平均化有助于减少传感器脉冲的不对称性的影响。
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公开(公告)号：US5309087A
公开(公告)日：1994-05-03
申请号：US941622
申请日：1992-09-08
摘要： A pulse-width modulation system provides means for controlling dual-coil, air-core gauges at a various rates over 360 degrees. The system moves a dial needle from one octant of the gauge to the next in response to coded data representing measurands by holding one coil at 100% duty cycle while applying a PWM of a varying duty signal to the other coil. When the magnitude of the measurand dictates that the needle should move into another octant of the dial, the PWM signal and the 100% duty cycle signal are interchanged between the coils in a manner permitting the needle to move to other octants of the dial. The system includes a variable PWM count clock that permits selecting at least PWM rates and periods for forming PWM duty cycles ranging from 0% to 100%.
摘要翻译： 脉宽调制系统提供了以360度以上各种速率控制双线圈，空心计的装置。 响应于表示被测量的编码数据，通过将一个线圈保持在100％占空比，系统将拨号针从量规的一个八分圆移动到下一个线圈，同时向另一个线圈施加变化的占空比信号的PWM。 当被测量的大小表明针头应该移动到表盘的另一个八分圆时，PWM信号和100％占空比信号在线圈之间互换，使得针头能够移动到表盘的其他八分圆形。 该系统包括可变PWM计数时钟，允许至少选择PWM速率和周期，以形成0％至100％的PWM占空比。
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公开(公告)号：US5077519A
公开(公告)日：1991-12-31
申请号：US589238
申请日：1990-09-28
IPC分类号： G01R23/02
CPC分类号： G01R23/02
摘要： A frequency conversion system for converting a pulse period into a frequency value by calculating a reciprocal value of a binary digit value of a pulse period from a remote period counter. The system uses the binary digit as a divisor and successively adds the divisor until a running sum results in (1) greater than a chosen dividend value or (2) the number of additions needed to reach a chosen dividend value is reached. A second embodiment is included which contains a local period counter.
摘要翻译： 一种频率转换系统，用于通过计算来自远程周期计数器的脉冲周期的二进制数值的倒数来将脉冲周期转换为频率值。 系统使用二进制数字作为除数，并连续添加除数，直到运行总和导致（1）大于所选股息值或（2）达到所选股息值所需的增加数量。 包括本地周期计数器的第二实施例。
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