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1. 发明授权

US09175700B2 Method and apparatus for detecting the position of a piston of a piston cylinder through the use of microwaves 有权
标题翻译：通过使用微波检测活塞缸的活塞的位置的方法和装置
公开(公告)号：US09175700B2
公开(公告)日：2015-11-03
申请号：US13535579
申请日：2012-06-28
申请人： Josef Buechler , Sorin Fericean , Albert Dorneich , Markus Fritton
发明人： Josef Buechler , Sorin Fericean , Albert Dorneich , Markus Fritton
IPC分类号： G01B7/14 , G06F19/00 , F15B15/28 , G01S13/36 , G01S13/88
CPC分类号： F15B15/2869 , G01S13/36 , G01S13/88
摘要： A method for detecting the position of a piston of a piston cylinder is provided. A microwave transmit signal is emitted in the direction of the piston and microwaves reflected from the piston are detected. The transmit signal is a modulated signal with a base frequency sinusoidally modulated at a modulation frequency. An evaluation of the phase between transmit signals and receive signals is performed. A phase determination at the baseband and a simultaneous phase determination at at least one sideband are also performed. The phase determination at the baseband is used for fine determination of the piston position and the phase determination at the at least one sideband is used for coarse determination of the piston position. Bandpass filtering on receive signals and evaluation transmit signals is performed with respect to the base frequency or an intermediate frequency. Bandpass filtering is performed with respect to the modulation frequency.
摘要翻译：提供了一种用于检测活塞气缸活塞位置的方法。在活塞的方向上发射微波发射信号，并检测从活塞反射的微波。发射信号是具有以调制频率正弦调制的基频的调制信号。执行发送信号和接收信号之间的相位的评估。还执行基带处的相位确定和在至少一个边带处的同时相位确定。在基带处的相位确定用于精确确定活塞位置，并且在至少一个边带处的相位确定被用于粗略地确定活塞位置。对基准频率或中频执行对接收信号和评估发射信号的带通滤波。对调制频率进行带通滤波。

2. 发明申请

US20120316828A1 METHOD AND APPARATUS FOR DETECTING THE POSITION OF A PISTON OF A PISTON CYLINDER THROUGH THE USE OF MICROWAVES 有权
标题翻译：通过使用微波检测活塞式气瓶活塞位置的方法和装置
公开(公告)号：US20120316828A1
公开(公告)日：2012-12-13
申请号：US13535579
申请日：2012-06-28
申请人： Josef Buechler , Sorin Fericean , Albert Dorneich , Markus Fritton
发明人： Josef Buechler , Sorin Fericean , Albert Dorneich , Markus Fritton
IPC分类号： G01B7/14 , G06F19/00
CPC分类号： F15B15/2869 , G01S13/36 , G01S13/88
摘要： A method for detecting the position of a piston of a piston cylinder is provided. A microwave transmit signal is emitted in the direction of the piston and microwaves reflected from the piston are detected. The transmit signal comprises a modulated signal with a base frequency sinusoidally modulated at a modulation frequency. An evaluation of the phase between transmit signals and receive signals is performed. A phase determination at the baseband and a simultaneous phase determination at at least one sideband are also performed. The phase determination at the baseband is used for fine determination of the piston position and the phase determination at the at least one sideband is used for coarse determination of the piston position. Bandpass filtering on receive signals and evaluation transmit signals is performed with respect to the base frequency or an intermediate frequency. Bandpass filtering is performed with respect to the modulation frequency.
摘要翻译：提供了一种用于检测活塞气缸活塞位置的方法。在活塞的方向上发射微波发射信号，并检测从活塞反射的微波。发射信号包括具有以调制频率正弦调制的基频的调制信号。执行发送信号和接收信号之间的相位的评估。还执行基带处的相位确定和在至少一个边带处的同时相位确定。在基带处的相位确定用于精确确定活塞位置，并且在至少一个边带处的相位确定被用于粗略地确定活塞位置。对基准频率或中频执行对接收信号和评估发射信号的带通滤波。对调制频率进行带通滤波。

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