CN106997004A - A kind of high-precision intelligent frequency displacement, phase-shift measurement device and method - Google Patents
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Abstract
本发明公开了一种高精度智能频移、相移测量装置及方法，用于精确测量元器件及其双端口网络频移和相移，包括信号发生模块、放大滤波模块、跟随器、微处理器及输入、输出接线端；信号发生模块与放大滤波模块连接，放大滤波模块的输出端连接输入接线端，输出接线端与微处理器连接，跟随器的一端与输入接线端连接，另一端与输出接线端连接，微处理器通过通信接口连接上位机，微处理器连接有存储模块、输入设备和显示模块。本发明通过信号发生器产生电磁波信号，经放大滤波模块放大滤波，被测元器件及其双端口网络的频移、相移，输出端信号与跟随器信号一起送入微处理器处理，实现对电子元器件及其双端口网络的频率衰减和相位角移动的高精度测量。
The invention discloses a high-precision intelligent frequency shift and phase shift measuring device and method, which are used to accurately measure the frequency shift and phase shift of components and their dual-port network, including a signal generation module, an amplification and filtering module, a follower, and a microprocessing and the input and output terminals; the signal generation module is connected with the amplification filter module, the output terminal of the amplification filter module is connected with the input terminal, the output terminal is connected with the microprocessor, one end of the follower is connected with the input terminal, and the other end is connected with the The output terminal is connected, the microprocessor is connected to the upper computer through the communication interface, and the microprocessor is connected with a storage module, an input device and a display module. In the present invention, the electromagnetic wave signal is generated by the signal generator, amplified and filtered by the amplification and filtering module, the frequency shift and phase shift of the measured components and their dual-port network, the output signal and the follower signal are sent to the microprocessor for processing, and the electronic High-precision measurement of frequency attenuation and phase angle shift of components and their two-port networks.
Description
技术领域technical field
本发明涉及电磁波频移相移精密测量领域，具体涉及一种高精度智能频移、相移测量装置及方法。The invention relates to the field of precision measurement of electromagnetic wave frequency shift and phase shift, in particular to a high-precision intelligent frequency shift and phase shift measuring device and method.
背景技术Background technique
随着通信技术的发展，信息流量成爆炸式增加需求，信道容量日趋饱和，电磁波频道几乎用完，因此，产生了通信信道的多路复用。With the development of communication technology, the demand for information flow has increased explosively, the channel capacity is becoming saturated, and the electromagnetic wave channel is almost used up. Therefore, multiplexing of communication channels has occurred.
通信的多路复用中，若要更密集复用，必须对频移、相移进行严格的测量与控制。目前，对各种电子元器件及其网络的频移相移不能有效的监测，限制密集通信复用方式的发展，成为制约通信发展的瓶颈。开发超高精度频移相移检测设备，是非常必要。因此，如何实现对各种电子元器件、各种电子元器件组成的网络进行频移相移精密测量仍是待解决的技术问题。In the multiplexing of communication, if the multiplexing is to be more dense, the frequency shift and phase shift must be strictly measured and controlled. At present, the frequency shift and phase shift of various electronic components and their networks cannot be effectively monitored, which restricts the development of intensive communication multiplexing methods and becomes a bottleneck restricting the development of communication. It is very necessary to develop ultra-high precision frequency shift phase shift detection equipment. Therefore, how to realize the precise measurement of frequency shift and phase shift of various electronic components and networks composed of various electronic components is still a technical problem to be solved.
发明内容Contents of the invention
为了克服上述现有技术的不足，本发明提供了一种高精度智能频移、相移测量装置及方法，实现对各种电子元器件及其双端口网络的频率衰减的高精度测量，测量精度即频率的相对变化率可达10-20量级，还可实现对各种电子元器件及其双端口网络的的相位角移动高精度测量。In order to overcome the deficiencies of the prior art above, the present invention provides a high-precision intelligent frequency shift and phase shift measurement device and method, which can realize high-precision measurement of the frequency attenuation of various electronic components and their dual-port networks, and the measurement accuracy That is, the relative change rate of the frequency can reach the order of 10 -20 , and it can also realize the high-precision measurement of the phase angle movement of various electronic components and their dual-port networks.
本发明所采用的技术方案是：The technical scheme adopted in the present invention is:
一种高精度智能频移、相移测量装置，用于精确测量元器件及其双端口网络频移和相移，包括信号发生模块、放大滤波模块、跟随器、微处理器及连接被测元器件及其双端口网络的输入、输出接线端；所述信号发生模块与放大滤波模块的输入端连接，所述放大滤波模块的输出端连接输入接线端，所述输出接线端与微处理器连接，所述跟随器的一端与输入接线端连接，另一端与输出接线端连接，所述微处理器通过通信接口连接上位机，所述微处理器还连接有存储模块、输入设备和显示模块。A high-precision intelligent frequency shift and phase shift measuring device, used to accurately measure the frequency shift and phase shift of components and their dual-port network, including a signal generation module, an amplification and filtering module, a follower, a microprocessor, and connected to the measured element The input and output terminals of the device and its dual-port network; the signal generation module is connected to the input terminal of the amplification and filtering module, the output terminal of the amplification and filtering module is connected to the input terminal, and the output terminal is connected to the microprocessor One end of the follower is connected to the input terminal, the other end is connected to the output terminal, the microprocessor is connected to the host computer through the communication interface, and the microprocessor is also connected to a storage module, an input device and a display module.
进一步的，所述信号发生模块由振荡器、放大器和稳幅环组成，所述振荡器与放大器连接，所述放大器的输出端与稳幅环连接。Further, the signal generating module is composed of an oscillator, an amplifier and an amplitude stabilizing loop, the oscillator is connected to the amplifier, and the output terminal of the amplifier is connected to the amplitude stabilizing loop.
进一步的，所述放大滤波模块由放大电路和低通滤波电路组成，所述低通滤波电路与放大电路的输出端连接。Further, the amplifying and filtering module is composed of an amplifying circuit and a low-pass filtering circuit, and the low-pass filtering circuit is connected to the output terminal of the amplifying circuit.
进一步的，所述存储模块包括ROM存储器和数据存储器。Further, the storage module includes a ROM memory and a data memory.
进一步的，所述微处理器自带高速模数转换器。Further, the microprocessor has its own high-speed analog-to-digital converter.
进一步的，所述输入设备采用键盘。Further, the input device adopts a keyboard.
一种高精度智能频移、相移测量方法，用于精确测量元器件及其双端口网络频移和相移，包括以下步骤：A high-precision intelligent frequency shift and phase shift measurement method is used to accurately measure the frequency shift and phase shift of components and their dual-port networks, including the following steps:
步骤1、由信号发生模块产生一电磁波信号X1，所述电磁波信号X1经放大滤波模块成为待测信号X2；Step 1, an electromagnetic wave signal X1 is generated by the signal generation module, and the electromagnetic wave signal X1 becomes the signal X2 to be tested through the amplification and filtering module;
步骤2、所述待测信号X2经被测元器件及其双端口网络成为相移信号X3，利用跟随器校正该相移信号X3；将相移信号X3送入微处理器测量相位角，并在显示模块上显示测量相位角；Step 2, the signal X2 to be tested becomes a phase-shifted signal X3 through the component under test and its two-port network, and the phase-shifted signal X3 is corrected by a follower; the phase-shifted signal X3 is sent to the microprocessor to measure the phase angle, and The measured phase angle is displayed on the display module;
步骤3、根据相位角求解得到频移、相移。Step 3, solving according to the phase angle to obtain the frequency shift and the phase shift.
进一步的，所述步骤3中，根据相位角求解得到频移、相移具体为：Further, in the step 3, according to the phase angle solution, the frequency shift and the phase shift are specifically:
频移的计算公式为：The formula for calculating the frequency shift is:
其中，Δf为频率变化量，fi为被测元器件及其双端口网络的输入端频率，fo为被测元器件及其双端口网络的输出端频率；Δθ为累积频移引起的相位角；t为测量时间段；Among them, Δf is the frequency change, f i is the input frequency of the component under test and its two-port network, f o is the output frequency of the component under test and its two-port network; Δθ is the phase caused by the cumulative frequency shift angle; t is the measurement time period;
相移的计算公式为：The formula for calculating the phase shift is:
其中，为相位角的变化量。in, is the change in phase angle.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
本发明通过信号发生器产生电磁波信号，经放大滤波模块放大滤波，被测元器件及其双端口网络的频移、相移，输出接线端信号与跟随器信号一起送入微处理器中处理，然后显示测量结果，从而实现对各种电子元器件及其双端口网络的频率衰减的高精度测量，测量精度即频率的相对变化率可达10-20量级，还可实现对各种电子元器件及其双端口网络的的相位角移动高精度测量；采用跟随器有效地消除输入接线端、输出接线端信号带来的测量误差；通过键盘实现对频率、振幅、功率调制；通过通信接口完成与上位机通信，实现测量数据方便快捷传输到计算机进行处理和有效保存。In the present invention, the electromagnetic wave signal is generated by the signal generator, amplified and filtered by the amplification and filtering module, the frequency shift and phase shift of the measured component and its dual-port network, the output terminal signal and the follower signal are sent to the microprocessor for processing, and then Display the measurement results, so as to realize the high-precision measurement of the frequency attenuation of various electronic components and their two-port networks. The high-precision measurement of the phase angle movement of its dual-port network; the follower is used to effectively eliminate the measurement error caused by the input terminal and output terminal signals; the frequency, amplitude, and power modulation are realized through the keyboard; The upper computer communication realizes the convenient and fast transmission of measurement data to the computer for processing and effective storage.
附图说明Description of drawings
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.
图1是本发明实施例一的高精度智能频移、相移测量装置的整体结构示意图；FIG. 1 is a schematic diagram of the overall structure of a high-precision intelligent frequency shift and phase shift measuring device according to Embodiment 1 of the present invention;
图2是本发明实施例二的高精度智能频移、相移测量方法的流程图。FIG. 2 is a flow chart of a high-precision intelligent frequency shift and phase shift measurement method according to Embodiment 2 of the present invention.
具体实施方式detailed description
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.
实施例一Embodiment one
为了实现对各种电子元器件及其网络进行频移相移高精度测量，本实施例提供了一种高精度智能频移、相移测量装置，用于精确测量元器件及其双端口网络频移和相移，如图1所示，该测量装置包括信号发生模块、放大滤波模块、跟随器、微处理器及连接被测元器件及其双端口网络的输入、输出接线端；所述信号发生模块与放大滤波模块的输入端连接，所述信号发生模块由振荡器、放大器和稳幅环组成，所述振荡器与放大器连接，所述放大器的输出端与稳幅环连接；所述放大滤波模块的输出端连接输入接线端，所述放大滤波模块由放大电路和低通滤波电路组成，所述低通滤波电路与放大电路的输出端连接，所述输出接线端与微处理器连接，所述跟随器的一端与输入接线端连接，另一端与输出接线端连接，所述微处理器通过通信接口连接上位机，所述微处理器还连接有存储模块、输入设备和显示模块；所述存储模块包括ROM存储器和数据存储器；所述微处理器自带高速模数转换器；所述输入设备采用键盘。In order to realize the high-precision measurement of frequency shift and phase shift of various electronic components and their networks, this embodiment provides a high-precision intelligent frequency shift and phase shift measurement device, which is used to accurately measure the frequency of components and their dual-port networks. shift and phase shift, as shown in Figure 1, the measuring device includes a signal generation module, an amplification filter module, a follower, a microprocessor and an input and output terminal connected to the measured component and its dual-port network; the signal The generating module is connected to the input end of the amplification and filtering module, the signal generating module is composed of an oscillator, an amplifier and an amplitude stabilizing loop, the oscillator is connected to the amplifier, and the output of the amplifier is connected to the amplitude stabilizing loop; the amplifying The output terminal of the filter module is connected to the input terminal, the amplifier filter module is composed of an amplifier circuit and a low-pass filter circuit, the low-pass filter circuit is connected to the output terminal of the amplifier circuit, and the output terminal is connected to the microprocessor, One end of the follower is connected to the input terminal, the other end is connected to the output terminal, the microprocessor is connected to the host computer through the communication interface, and the microprocessor is also connected to a storage module, an input device and a display module; The storage module includes a ROM memory and a data memory; the microprocessor has a high-speed analog-to-digital converter; the input device adopts a keyboard.
本发明公开的该实施例，将微处理器作为控制中心，用于对整个装置的控制，设有ROM存储器和数据存储器，通过键盘实现对频率、振幅、功率调制；还设有通信接口，完成与上位机通信，实现测量数据方便快捷传输到计算机进行处理和有效保存，并通过显示模块显示测量结果。由于频移非常微弱，相对误差小，常规方法难以测量到这种变化，本发明在元器件及其双端口网络两端添加跟随器，使得输出接线端的信号严格紧跟输入接线端的信号变化，消除信号源自身产生的误差。In this embodiment disclosed by the present invention, the microprocessor is used as the control center to control the entire device, and a ROM memory and a data memory are provided to realize frequency, amplitude, and power modulation through a keyboard; a communication interface is also provided to complete Communicate with the host computer to realize the convenient and fast transmission of measurement data to the computer for processing and effective storage, and display the measurement results through the display module. Because the frequency shift is very weak and the relative error is small, it is difficult to measure this change by conventional methods. The present invention adds followers at both ends of the component and its dual-port network, so that the signal at the output terminal follows the signal change at the input terminal strictly, eliminating Errors generated by the signal source itself.
经由上述的技术方案可知，与现有技术相比，本发明实施例公开了一种高精度智能频移、相移测量装置，测试时，将被测被测元器件及其双端口网络接与输入、输出接线端之间，通过信号发生器产生一电磁波信号，经放大滤波模块，传输到被测元器件及其双端口网络的输入接线端，经过被测元器件及其双端口网络的频移、相移到达输出接线端，跟随器紧跟被测元器件及其双端口网络的两端信号，消除直接测量输入接线端、输出接线端信号带来的测量误差，输出接线端信号与跟随器信号一起送入微处理器中处理，然后显示测量结果，该测量装置实现对各种电子元器件及其双端口网络的频率衰减的高精度测量，测量精度即频率的相对变化率可达10-20量级，还可实现对各种电子元器件及其双端口网络的的相位角移动高精度测量。It can be seen from the above technical solutions that, compared with the prior art, the embodiment of the present invention discloses a high-precision intelligent frequency shift and phase shift measurement device. During the test, the tested components and their dual-port network are connected to Between the input and output terminals, a signal generator generates an electromagnetic wave signal, which is transmitted to the input terminal of the component under test and its dual-port network through the amplification and filtering module, and passes through the frequency of the component under test and its dual-port network. The phase shift and phase shift reach the output terminal, and the follower closely follows the signals at both ends of the component under test and its dual-port network, eliminating the measurement error caused by direct measurement of the input terminal and output terminal signals, and the output terminal signal and follower The signal of the instrument is sent to the microprocessor for processing, and then the measurement result is displayed. The measurement device realizes the high-precision measurement of the frequency attenuation of various electronic components and their dual-port network. The measurement accuracy, that is, the relative change rate of the frequency can reach 10 - 20 order of magnitude, it can also realize high-precision measurement of the phase angle movement of various electronic components and their dual-port networks.
实施例二Embodiment two
如图2所示，本实施例提供了一种高精度智能频移、相移测量方法，用于精确测量元器件及其双端口网络频移和相移，包括以下步骤：As shown in FIG. 2, this embodiment provides a high-precision intelligent frequency shift and phase shift measurement method for accurately measuring the frequency shift and phase shift of components and their dual-port networks, including the following steps:
步骤1、由信号发生模块产生一电磁波信号X1，所述电磁波信号X1经放大滤波模块成为待测信号X2；Step 1, an electromagnetic wave signal X1 is generated by the signal generation module, and the electromagnetic wave signal X1 becomes the signal X2 to be tested through the amplification and filtering module;
步骤2、所述待测信号X2经被测元器件及其双端口网络成为相移信号X3，利用跟随器校正该相移信号X3；将相移信号X3送入微处理器测量相位角，并在显示模块上显示测量相位角；Step 2, the signal X2 to be tested becomes a phase-shifted signal X3 through the component under test and its two-port network, and the phase-shifted signal X3 is corrected by a follower; the phase-shifted signal X3 is sent to the microprocessor to measure the phase angle, and The measured phase angle is displayed on the display module;
步骤3、根据相位角求解得到频移、相移，具体为：Step 3. Solve according to the phase angle to obtain the frequency shift and phase shift, specifically:
频移的计算公式为：The formula for calculating the frequency shift is:
其中，Δf为频率变化量，fi为被测元器件及其双端口网络的输入端频率，fo为被测元器件及其双端口网络的输出端频率；Δθ为累积频移引起的相位角；t为测量时间段；Among them, Δf is the frequency change, f i is the input frequency of the component under test and its two-port network, f o is the output frequency of the component under test and its two-port network; Δθ is the phase caused by the cumulative frequency shift angle; t is the measurement time period;
相移的计算公式为：The formula for calculating the phase shift is:
其中，为相位角的变化量。in, is the change in phase angle.
本发明公开的该实施例，测试时，将被测被测元器件及其双端口网络接与输入、输出接线端之间，通过信号发生模块产生一电磁波信号X1，电磁波信号X1经放大滤波模块放大、滤波成为待测信号X2；待测信号X2经被测元器件及其双端口网络频移、相移成为相移信号X3，利用跟随器校正该相移信号X3，消除测量误差；将相移信号X3送入微处理器测量相位角，并在显示模块上显示测量相位角，看出原始变化量；根据相位角求解得到频移、相移。本实施例测量方法实现对各种电子元器件及其双端口网络的频率衰减的高精度测量，测量精度即频率的相对变化率可达10-20量级，还可实现对各种电子元器件及其双端口网络的的相位角移动高精度测量。In this embodiment disclosed by the present invention, during testing, the tested component and its dual-port network are connected between the input and output terminals, and an electromagnetic wave signal X1 is generated through the signal generation module, and the electromagnetic wave signal X1 is amplified and filtered by the filter module Amplify and filter to become the signal X2 to be tested; the signal X2 to be tested is frequency-shifted and phase-shifted by the component under test and its dual-port network to become a phase-shifted signal X3, and the phase-shifted signal X3 is corrected by a follower to eliminate measurement errors; The shift signal X3 is sent to the microprocessor to measure the phase angle, and the measured phase angle is displayed on the display module, and the original variation can be seen; the frequency shift and phase shift are obtained by solving the phase angle. The measurement method of this embodiment realizes the high-precision measurement of the frequency attenuation of various electronic components and devices and their dual-port networks. High-precision measurement of the phase angle shift of its two-port network.
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
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