CN104849524A - Data acquisition system orienting high-power pulse signal and method thereof - Google Patents
Data acquisition system orienting high-power pulse signal and method thereof Download PDFInfo
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- CN104849524A CN104849524A CN201510256191.2A CN201510256191A CN104849524A CN 104849524 A CN104849524 A CN 104849524A CN 201510256191 A CN201510256191 A CN 201510256191A CN 104849524 A CN104849524 A CN 104849524A
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Abstract
The invention relates to the field of signal measurement, and particularly relates to a data acquisition system orienting a high-power pulse signal and a method thereof. The system comprises attenuator units, digital oscilloscope units, a network switch and an upper computer unit. The method comprises the steps that power of the high-power pulse signal is attenuated to the measurement range of the digital oscilloscopes through the fixed attenuator and then the electrically controlled attenuators program-controlled by the upper computer, and then the high-power pulse signal enters the digital oscilloscopes to be measured. Meanwhile, signal waveforms captured by the digital oscilloscopes are displayed on the upper computer, and channel data and screen captures of the digital oscilloscopes are stored in the upper computer. The program control function of the electrically controlled attenuators and the digital oscilloscopes is integrated on the upper computer so that enhancement of working efficiency of data acquisition of the high-power pulse signal is facilitated, workload of signal measurement personnel is reduced and thus the data acquisition system orienting the high-power pulse signal and the method thereof are suitable for wide popularization and application.
Description
Technical field
The present invention relates to signal measurement field, particularly a kind of data acquisition system (DAS) towards highpowerpulse signal and method.
Background technology
In highpowerpulse signal measurement, usual employing digital oscilloscope is measured, because the power of highpowerpulse signal is often beyond the measurement range of digital oscilloscope, high-power signal is directly introduced digital oscilloscope to carry out measuring often burning out channel oscilloscope, therefore need to carry out power attenuation by attenuator to signal before signal enters oscillograph.The method of existing measurement highpowerpulse signal, not attenuator be oscillographicly program controlly integrated in a system, at attenuator portion fixed attenuator or manually arrange pad value often, the data collection task for large-scale highpowerpulse signal is often not very convenient.China Patent Publication No. CN 102945026 A provides the oscillographic method and system of a kind of control, China Patent Publication No. CN 102914700 A provides a kind of self calibration measuring method of ultra-wide spectrum pulse amplitude, China Patent Publication No. CN 103630756 A provides a kind of calibration steps of high-power microwave pulse signal, but they are all not mentioned when carrying out the data acquisition of highpowerpulse signal, by instrument programmed control method, the integrated programmable function to voltage-controlled attenuator and digital oscilloscope, the mode combined with fixed attenuator and voltage-controlled attenuator carries out the power attenuation of pulse signal, and completed the oscillographic operation of numeral and data preservation by host computer.
Summary of the invention
The present invention is directed to the problem that prior art does not have the highpowerpulse signal data acquisition inconvenience that integrated attenuator is program control, oscillograph is program control and cause, provide a kind of data acquisition system (DAS) towards highpowerpulse signal and method.
For overcoming the above problems, the invention provides a kind of data acquisition system (DAS) towards highpowerpulse signal, comprising:
Attenuator unit 10, for carrying out power attenuation to highpowerpulse signal, comprising N number of four-way attenuator module further, having 4*N signal input channel;
Digital oscilloscope unit 20, for measuring and showing the highpowerpulse signal through attenuator attenuates, comprises N number of four-way digital oscilloscope further, has 4*N signal input channel;
The network switch 30, for realizing host computer and attenuator driver, networking between host computer with digital oscilloscope is connected;
Host computer unit 40, program control for what realize voltage-controlled attenuator and digital oscilloscope, comprise network communication module 41, attenuator control module 42, digital oscilloscope control module 43, data memory module 44 further.
The four-way attenuator module of described attenuator unit 10 is connected with the four-way digital oscilloscope of digital oscilloscope unit 20, the four-way attenuator module of attenuator unit 10 is connected with the network switch 30, the four-way digital oscilloscope of digital oscilloscope unit 20 is connected with the network switch 30, and the network switch 30 is connected with the network communication module 41 of host computer unit 40.
Described four-way attenuator module comprises 4 single channel attenuator submodules, and each single channel attenuator submodule can realize the power attenuation of 1 road input signal, and attainable automatically controlled attenuation range is 0-100dB, and attenuation accuracy is 0.1dB.
Described network communication module 41 can realize the function that attenuator control module 42 communicates with digital oscilloscope with attenuator drive communication, digital oscilloscope control module 43.
Described attenuator control module 42 can realize host computer and arrange the pad value of voltage-controlled attenuator, obtains the function of current attenuation device pad value.
The signal waveform that described digital oscilloscope control module 43 can realize arranging the parameter of digital oscilloscope at host computer, display digital oscilloscope is caught, preserve channel of digital oscilloscope data and the screenshot capture function to host computer.
Described data memory module 44 is for store electricity controlling attenuation value change record, and the parameter setting information of digital oscilloscope, channel data and screenshot capture.
As a kind of embodiment, described single channel attenuator submodule comprises fixed attenuator, voltage-controlled attenuator 1, voltage-controlled attenuator 2, voltage-controlled attenuator 3 and attenuator driver.
As a kind of embodiment, the signal power that described fixed attenuator can bear is higher, plays first protective effect; Described voltage-controlled attenuator 1 attenuation range is 0-90dB, attenuation accuracy is 10dB; Described voltage-controlled attenuator 2 attenuation range is 0-10dB, attenuation accuracy is 1dB; Described voltage-controlled attenuator 3 attenuation range is 0-1dB, attenuation accuracy is 0.1dB.
For overcoming the above problems, present invention also offers a kind of collecting method towards highpowerpulse signal, comprise highpowerpulse signal first through fixed attenuator, pass through by the program control voltage-controlled attenuator of host computer again, make its power attenuation in the measurement range of digital oscilloscope, enter digital oscilloscope again to measure, simultaneously in the signal waveform that host computer display digital oscilloscope captures, and preserve the channel data of digital oscilloscope and screenshot capture to host computer.
The present invention, by the programmable function at the integrated voltage-controlled attenuator of host computer and digital oscilloscope, contributes to the work efficiency improving highpowerpulse signal data acquisition, reduces the workload of signal measurement personnel, be applicable to wide popularization and application.
Accompanying drawing explanation
Fig. 1 is a kind of data acquisition system (DAS) preferred embodiment structured flowchart towards highpowerpulse signal of the present invention.
Fig. 2 is four-way attenuator module preferred embodiment structured flowchart of the present invention.
Fig. 3 is single channel attenuator submodule preferred embodiment structured flowchart of the present invention.
Fig. 4 is attenuator control module preferred embodiment functional block diagram of the present invention.
Fig. 5 is a kind of collecting method preferred embodiment schematic flow sheet towards highpowerpulse signal of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of data acquisition system (DAS) towards highpowerpulse signal that the present invention relates to is further elaborated.
The invention provides a kind of high-power signal measuring system, preferred embodiment signal as shown in Figure 1, comprising:
Attenuator unit 10, for carrying out power attenuation to highpowerpulse signal, comprising N number of four-way attenuator module further, having 4*N signal input channel;
Digital oscilloscope unit 20, for measuring and showing the highpowerpulse signal through attenuator attenuates, comprises N number of four-way digital oscilloscope further, has 4*N signal input channel;
The network switch 30, for realizing host computer and attenuator driver, network between host computer with digital oscilloscope is connected;
Host computer unit 40, program control for what realize voltage-controlled attenuator and digital oscilloscope, comprise network communication module 41, attenuator control module 42, digital oscilloscope control module 43, data memory module 44 further.
Preferably, the general switching software part of described host computer unit 40 pairs of voltage-controlled attenuators and digital oscilloscope develops realization on Visual Studio 2010 platform.
Described four-way attenuator module is connected with four-way digital oscilloscope, and signal enters four-way digital oscilloscope again and measures after the decay of four-way attenuator module.
Preferably, described N value is 20, then described system can complete the data collection task of 80 road highpowerpulse signals simultaneously.
As a kind of Alternate embodiments, four-way attenuator module preferred embodiment structured flowchart as shown in Figure 2, comprise 4 single channel attenuator submodules further, each single channel attenuator submodule can realize the power attenuation of 1 road input signal, attainable automatically controlled attenuation range is 0-100dB, and attenuation accuracy is 0.1dB.
As a kind of Alternate embodiments, single channel attenuator sub modular structure block diagram as shown in Figure 3, comprises fixed attenuator, voltage-controlled attenuator 1, voltage-controlled attenuator 2, voltage-controlled attenuator 3 and attenuator driver further.
As a kind of Alternate embodiments, the signal power that described fixed attenuator can bear is higher, plays first protective effect; Described voltage-controlled attenuator 1 attenuation range is 0-90dB, attenuation accuracy is 10dB; Described voltage-controlled attenuator 2 attenuation range is 0-10dB, attenuation accuracy is 1dB; Described voltage-controlled attenuator 3 attenuation range is 0-1dB, attenuation accuracy is 0.1dB; Described voltage-controlled attenuator driver is connected with the network switch, and host computer attenuator control module 42 is communicated with attenuator driver by the network switch, comprises and sends pad value order and obtain pad value information.
Described four-way digital oscilloscope is connected with the network switch, host computer oscillograph control module 43 is communicated with digital oscilloscope by the network switch, comprise oscillograph control module 43 and send command information to digital oscilloscope, and digital oscilloscope end is sent to the channel data, screenshot capture, current state information etc. of host computer.
Described network communication module 41 can realize the function that attenuator control module 42 communicates with digital oscilloscope with attenuator drive communication, digital oscilloscope control module 43.
Described attenuator control module 42 can realize host computer and arrange the pad value of voltage-controlled attenuator, obtains the function of current attenuation device pad value.
As a kind of Alternate embodiments, digital oscilloscope control module preferred embodiment functional block diagram as shown in Figure 4, the signal waveform that described digital oscilloscope control module 43 can realize arranging the parameter of digital oscilloscope at host computer, display digital oscilloscope is caught, preserves channel of digital oscilloscope data and the screenshot capture function to host computer.
Described data memory module 44 is for store electricity controlling attenuation value change record, and the parameter setting information of digital oscilloscope, channel data and screenshot capture.
The present invention also provides a kind of collecting method towards highpowerpulse signal, preferred embodiment schematic flow sheet as shown in Figure 5, comprise highpowerpulse signal first through fixed attenuator, pass through by the program control voltage-controlled attenuator of host computer again, make its power attenuation in the measurement range of digital oscilloscope, enter digital oscilloscope again to measure, simultaneously in the signal waveform that host computer display digital oscilloscope captures, and preserve the channel data of digital oscilloscope and screenshot capture to host computer.
First, carry out optimum configurations at host computer, comprise the setting of the setting of automatically controlled pad value, digital oscilloscope parameter, as horizontal timebase, vertical sensitivity, trigger mode etc., for the data acquisition of highpowerpulse signal is ready.
Secondly, highpowerpulse signal is first through fixed attenuator, and the signal power that fixed attenuator can bear is higher, plays first protective effect.
Then, highpowerpulse signal is through voltage-controlled attenuator, the automatically controlled attenuation range that can realize is 0-100dB, attenuation accuracy is 0.1dB, sends pad value order to attenuator driver, by the change of the automatically controlled pad value of attenuator driver drives by the attenuator control module of host computer.
Again, the pulse signal after power attenuation is introduced digital oscilloscope and measures, oscillograph obtains the information such as the waveform of pulse signal, amplitude.
Finally, in the host computer display digital oscilloscope signal waveform of catching, and preserve channel of digital oscilloscope data and screenshot capture to host computer, be convenient to the analytical work that the later stage carries out signal.
The present invention further describes the object, technical solutions and advantages of the present invention for embodiment or embodiment; be understood that; above lifted embodiment or embodiment are only the preferred embodiment of the present invention; not in order to limit the present invention; all any amendments made for the present invention within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a high-power signal measuring system, is characterized in that, comprising:
Attenuator unit (10), for carrying out power attenuation to highpowerpulse signal, comprising N number of four-way attenuator module further, having 4*N signal input channel;
Digital oscilloscope unit (20), for measuring and showing the highpowerpulse signal through attenuator attenuates, comprises N number of four-way digital oscilloscope further, has 4*N signal input channel;
The network switch (30), for realizing host computer and attenuator driver, network between host computer with digital oscilloscope is connected;
Host computer unit (40), program control for what realize voltage-controlled attenuator and digital oscilloscope, comprise network communication module (41), attenuator control module (42), digital oscilloscope control module (43), data memory module (44) further.
The four-way attenuator module of described attenuator unit (10) is connected with the four-way digital oscilloscope of digital oscilloscope unit (20), the four-way attenuator module of attenuator unit (10) is connected with the network switch (30), the four-way digital oscilloscope of digital oscilloscope unit (20) is connected with the network switch (30), and the network switch (30) is connected with the network communication module (41) of host computer unit (40).
2. system as claimed in claim 1, it is characterized in that, described four-way attenuator module comprises 4 single channel attenuator submodules, and each single channel attenuator submodule can realize the power attenuation of 1 road input signal, attainable automatically controlled attenuation range is 0-100dB, and attenuation accuracy is 0.1dB.
3. system as claimed in claim 1, it is characterized in that, described network communication module (41) can realize the function that attenuator control module (42) communicates with digital oscilloscope with attenuator drive communication, digital oscilloscope control module (43).
4. system as claimed in claim 1, is characterized in that, described attenuator control module (42) can realize host computer and arrange the pad value of voltage-controlled attenuator, obtains the function of current attenuation device pad value.
5. system as claimed in claim 1, it is characterized in that, the signal waveform that described digital oscilloscope control module (43) can realize arranging the parameter of digital oscilloscope at host computer, display digital oscilloscope is caught, preserve channel of digital oscilloscope data and the screenshot capture function to host computer.
6. system as claimed in claim 1, it is characterized in that, described data memory module (44) is for store electricity controlling attenuation value change record, and the parameter setting information of digital oscilloscope, channel data and screenshot capture.
7. system as claimed in claim 2, is characterized in that described single channel attenuator submodule comprises fixed attenuator, voltage-controlled attenuator 1, voltage-controlled attenuator 2, voltage-controlled attenuator 3 and attenuator driver.
8. system as claimed in claim 7, is characterized in that the signal power that described fixed attenuator can bear is higher, plays first protective effect; Described voltage-controlled attenuator 1 attenuation range is 0-90dB, attenuation accuracy is 10dB; Described voltage-controlled attenuator 2 attenuation range is 0-10dB, attenuation accuracy is 1dB; Described voltage-controlled attenuator 3 attenuation range is 0-1dB, attenuation accuracy is 0.1dB.
9. the collecting method towards highpowerpulse signal, it is characterized in that comprising highpowerpulse signal first through fixed attenuator, pass through by the program control voltage-controlled attenuator of host computer again, make its power attenuation in the measurement range of digital oscilloscope, enter digital oscilloscope again to measure, simultaneously in the signal waveform that host computer display digital oscilloscope captures, and preserve the channel data of digital oscilloscope and screenshot capture to host computer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105866557A (en) * | 2016-03-22 | 2016-08-17 | 成都理工大学 | Time and energy double-spectrum synchronization measurement system for achieving GHZ pulse passing rate |
| CN106680618A (en) * | 2016-11-17 | 2017-05-17 | 上海精密计量测试研究所 | Measuring device and measuring method for impulse intensity of EMI measuring system |
| CN109239672A (en) * | 2018-09-29 | 2019-01-18 | 南京吉凯微波技术有限公司 | A kind of four-way microwave T/R component |
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