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1. 发明申请

WO2009143635A1 APPARATUS FOR LOCK-IN AMPLIFYING AN INPUT SIGNAL AND METHOD FOR GENERATING A REFERENCE SIGNAL FOR A LOCK-IN AMPLIFIER 审中-公开
标题翻译：用于锁定输入信号的锁定装置和用于产生用于锁存放大器的参考信号的方法
公开(公告)号：WO2009143635A1
公开(公告)日：2009-12-03
申请号：PCT/CH2008/000239
申请日：2008-05-27
申请人： HEER, Flavio , HAFIZOVIC, Sadik
发明人： HEER, Flavio , HAFIZOVIC, Sadik
IPC分类号： H03D5/00
CPC分类号： H03D5/00
摘要： Apparatus (300; 400; 500) for lock-in amplifying an input signal (S I ), comprising one or more lock-in amplifiers (304, 307, 308; 422, 423, 424; 504, 507, 515, 516) with a first input terminal (In) for the input signal (S I ) to be lock-in amplified and a second input terminal (Ref) for a reference signal, wherein at least one phase-locked loop circuit (312; 508, 514) is provided, which phase-locked loop circuit (312; 508, 514) comprises one of the one or more lock-in amplifiers (304; 422, 504; 515), an oscillator (306; 506, 511) and a feedback path (303; 421; 503, 517) from the oscillator (306; 506, 511) to the second input (Ref) of the one lock-in amplifier (304; 422, 504; 515), wherein an input terminal of the at least one phase-locked loop circuit (312; 508, 514) is connected with the first input terminal (In) of the one or more lock-in amplifiers (304, 307, 308; 422, 423, 424; 504, 507, 515, 516) and an Output terminal of the oscillator (306; 506, 511) is connected to the second input terminal (Ref) of the one or more lock-in amplifiers (304, 307, 308; 422, 423, 424; 504, 507, 515, 516). 7. Further the invention relates to a method for generating a reference signal for one or more lock-in amplifiers (304, 307, 308; 422, 423, 424; 504, 507, 515, 516).
摘要翻译：用于锁定放大输入信号（SI）的设备（300; 400; 500），包括一个或多个锁定放大器（304,307,308,422,423,424; 504,507,515,516），其具有用于要锁定放大的输入信号（SI）的第一输入端（In）和用于参考信号的第二输入端（Ref），其中至少一个锁相环电路（312; 508,514）提供了哪个锁相环电路（312; 508,514）包括一个或多个锁相放大器（304; 422,504; 515）中的一个，振荡器（306; 506,511）和反馈路径 303; 421; 503,517）从所述振荡器（306; 506,511）到所述一个锁定放大器（304; 422,504; 515）的所述第二输入端（Ref）一个锁相环电路（312; 508,514）与一个或多个锁相放大器（304,307,308,422,423,424; 504,507,515）的第一输入端（In）连接，516），并且所述振荡器（306; 506,511）的输出端子连接到所述第二输入一个或多个锁定放大器（304,307,308; 422，423，424; 504,507,515,516）。此外，本发明涉及一种用于为一个或多个锁定放大器（304,307,308,422,423,424; 504,507,515,516）产生参考信号的方法。

2. 发明申请

WO2011109913A1 APPARATUS AND METHOD FOR DEMODULATING AN INPUT SIGNAL 审中-公开
标题翻译：用于解调输入信号的装置和方法
公开(公告)号：WO2011109913A1
公开(公告)日：2011-09-15
申请号：PCT/CH2010/000066
申请日：2010-03-10
申请人： ZURICH INSTRUMENTS AG , HAFIZOVIC, Sadik , HEER, Flavio , KOCH, Stefan , HAANDBAEK, Niels
发明人： HAFIZOVIC, Sadik , HEER, Flavio , KOCH, Stefan , HAANDBAEK, Niels
IPC分类号： H03D1/00 , H03D3/00
CPC分类号： H03D3/006 , H03D1/22
摘要： The invention relates to an apparatus (300; 400; 500; 600) for demodulating an input signal (306; 402; 520), comprising a frequency detector (302; 403; 502.1,..., 502. N; 603) for tracking a frequency (f2; fd1,..., fdN) of the input signal (306; 402; 520), an oscillator (304; 410; 505; 605, 606) and a mixer (305; 408; 507; 608, 609), wherein the input signal (306; 402; 520) and an output signal (307; 409) of the oscillator (304; 410; 505; 605, 606) constitute the incoming signals for the mixer (305; 408; 507; 608, 609) and the output signal of the mixer (305; 408; 507; 608, 609) constitutes the demodulated input signal, wherein an arithmetic unit (303; 404; 504; 604) is arranged downstream of the frequency detector (302; 403; 502.1,..., 502. N; 603) and upstream of the oscillator (304; 410; 505; 605, 606), wherein the tracked frequency (f2; fd1,..., fdN) of the input signal (306; 402; 520) and a predefined second frequency (f1; faux1,..., fauxM) constitute the incoming signals of the arithmetic unit (303; 404; 504; 604) and the arithmetic unit (303; 404; 504; 604) is designed such that it computes a control signal (f3; f4; fo1,..., foP) for the oscillator (304; 410; 505; 605, 606) from the tracked frequency (f2; fd1,..., fdN) of the input signal (306; 402; 520) and the predefined second frequency (f1; faux1,..., fauxM) with the output signal (307; 409) of the oscillator (304; 410; 505; 605, 606) depending on the control signal (f3; f4; fo1,..., foP). The invention furthermore relates to a method for demodulating an input signal (306; 402; 520) with such an apparatus (300; 400; 500; 600).
摘要翻译：本发明涉及一种用于解调输入信号（306; 402; 520）的装置（300; 400; 500; 600），包括频率检测器（302; 403; 502.1，...，502; N; 603）跟踪输入信号（306; 402; 520）的频率（f2; fd1，...，fdN），振荡器（304; 410; 505; 605,606）和混频器（305; 408; 507; 608 ，其中所述振荡器（304; 410; 505; 605,606）的所述输入信号（306; 402; 520）和输出信号（307; 409）构成所述混频器（305; 408; 507; 608,609），并且所述混频器（305; 408; 507; 608,609）的输出信号构成所述解调输入信号，其中运算单元（303; 404; 504; 604）被布置在所述频率检测器（302; 403; 502.1，...，502; N; 603）和振荡器（304; 410; 505; 605,606）的上游，其中跟踪的频率（f2; fd1，...，fdN）所述输入信号（306; 402; 520）和预定义的第二频率（f1; faux1，...，fauxM）构成所述输入信号算术单元（303; 404; 504; 604）和算术单元（303; 404; 504; 604）被设计成使得它计算振荡器（304; 410; 505; 605,606）的控制信号（f3; f4; fo1，...，foP））与输出信号（306; 402; 520）的跟踪频率（f2; fd1，...，fdN）和预定义的第二频率（f1; faux1，...，fauxM）取决于控制信号（f3; f4; fo1，...，foP）的振荡器（304; 410; 505; 605，606）本发明还涉及一种用这种装置（300; 400; 500; 600）解调输入信号（306; 402; 520）的方法。

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