CN106291349A - The method of testing of microwave components based on frequency conversion square-wave signal switch response time - Google Patents
The method of testing of microwave components based on frequency conversion square-wave signal switch response time Download PDFInfo
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- CN106291349A CN106291349A CN201610681640.2A CN201610681640A CN106291349A CN 106291349 A CN106291349 A CN 106291349A CN 201610681640 A CN201610681640 A CN 201610681640A CN 106291349 A CN106291349 A CN 106291349A
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- microwave components
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses the method for testing of a kind of microwave components based on frequency conversion square-wave signal switch response time, use square wave control signal that microwave components is carried out equally spaced switching manipulation；Big stepping length is set, the cycle of square wave control signal is constantly shortened with a big stepping length, and the square wave control signal after shortening is input to microwave components, until microwave components output signal is completely severed, the cycle of square wave control signal is lengthened a big stepping length, little stepping length is set, the square wave control signal cycle is constantly shortened with a little stepping length, and the square wave control signal after shortening is input to microwave components, until microwave components output signal is completely severed, then switch response time is 1/2nd of the now square wave control signal cycle.The present invention becomes the single pass test of microwave components output signal by switching the interchannel test conversion of response time, it is not necessary to consider interchannel stationary problem.
Description
Technical field
The present invention relates to the method for testing of a kind of microwave components based on frequency conversion square-wave signal switch response time.
Background technology
In the test automatically of microwave components switch response time, current traditional method needs to consider trigger port and signal
Stationary problem between output channel, and when obtaining the response time of switch by the way of program control on oscillograph, oscillograph is sentenced
The stable standard of break signal is difficult to hold.
Microwave components switch response time is the important indicator weighing microwave components.
The interchannel method of testing of the most general employing, as shown in Figure 1.Oscillograph is using microwave components control signal as touching
Send out, gather the signal waveform of signal output channels, read this section effectively started to stable output signal from control signal
Time interval is as the response time of switch.
Programmable oscilloscope Acquisition channel 1 rising edge is to the time parameter of certain effective rising edge of passage 2.
Prior art needs to consider interchannel stationary problem, oscillographic in test process arranges complexity.And with manually
Test difference, obtained by the way of program control when control signal triggers the time started to signal stabilization, and oscillograph judges defeated
Go out standard (i.e. which rising edge of output signal is as the beginning of stable output signal) the most bad assurance of signal stabilization.
Summary of the invention
The present invention is to solve the problems referred to above, it is proposed that during the switch response of a kind of microwave components based on frequency conversion square-wave signal
Between method of testing, the present invention becomes the single pass survey of microwave components output signal by switching the interchannel test conversion of response time
Examination, it is not necessary to consider interchannel stationary problem.
To achieve these goals, the present invention adopts the following technical scheme that
The method of testing of a kind of microwave components based on frequency conversion square-wave signal switch response time, comprises the following steps:
(1) square wave control signal that the cycle is longer is input to microwave components, and microwave signal is between microwave components outfan etc.
Every output；
(2) big stepping length is set, by the big stepping length of cycle time one of square wave control signal, and will shorten after
Square wave control signal is input to microwave components；
(3) judge the peak value of the microwave components output signal that oscillograph receives whether more than setting value, if it is, return
Step (2) continues to shorten the control signal cycle, if it is not, then by the cycle of now square wave control signal plus big stepping length
For new square wave control signal cycle, entrance step (4)；
(4) little stepping length is set, by little for square wave control signal cycle time one stepping length, and the side after shortening
Wave control signal is input to microwave components；
(5) judge the peak value of the microwave components output signal that oscillograph receives whether more than setting value, if it is, return
Step (4) continues to shorten the control signal cycle, if it is not, then switch response time is the two of the now square wave control signal cycle
/ mono-.
In described step (1), square wave control signal is used microwave components to be carried out equally spaced switching manipulation, when square wave
When initial period T0 makes switch have time enough to carry out stable, the time interval with T0/2 is gone out by the signal on oscillograph
Existing.
In described step (2), when the square-wave signal cycle is with big stepping contraction in length, the time that the signal on oscillograph occurs
Interval will be shortened.
In described step (2), when continuing with in cycle of big stepping contraction in length square wave control signal to microwave components
Switch is constantly in intermediateness, and the output signal of microwave components is completely severed.
In described step (3), the square wave control signal cycle now is controlled letter plus a length of new square wave of big stepping
Number cycle, i.e. it return back to the critical state that switch can respond.
In described step (3) and step (5), by whether judging the peak value of microwave components output signal that oscillograph receives
More than setting value, to judge whether the output of signal is completely severed.
If the peak value read on oscillograph is higher than setting value, show that signal still can be exported by the switch of microwave components,
I.e. represent that the half of square-wave cycle enough switchs to respond；If less than setting value, show that signal can not be by microwave components
Switch output, i.e. represents that the half of square-wave cycle is insufficient for switch and responds.
The invention have the benefit that
(1) present invention becomes the single pass survey of microwave components output signal by switching the interchannel test conversion of response time
Examination, the test of oscillograph single channel realizes simple, it is not necessary to consider interchannel stationary problem；
(2) operation of complicated for programmable oscilloscope acquisition time parameter is converted into and judges that amplitude with presence or absence of signal is surveyed by the present invention
Examination, in test automatically, oscillographic peak value judges the simplest, and ordinary oscilloscope can realize, the acquisition of complicated time parameter
The most unsatisfactory.
(3) square wave control signal cycle stepping of the present invention rationally switches, it is ensured that taken into account test while test speed
Precision.
Accompanying drawing explanation
Fig. 1 is that traditional switch response time tests block diagram；
Fig. 2 is the switch response time test block diagram of the present invention；
Fig. 3 is the switch response time test philosophy figure of the present invention；
Fig. 4 is the oscillograph-continuous signal figure of the present invention；
Fig. 5 is the oscillograph-without input signal figure of the present invention；
Fig. 6 is the oscillograph-interval signal figure of the present invention；
Fig. 7 is state diagram when being T0 of the square wave control signal cycle of the present invention；
Fig. 8 is state diagram when being T0-B of the square wave control signal cycle of the present invention；
Fig. 9 is state diagram when being T1 of the square wave control signal cycle of the present invention.
Detailed description of the invention:
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The invention provides a kind of brand-new microwave components switch response time method of testing, (principle refers to as shown in Figure 2
Fig. 3).
Oscillograph single channel receives microwave components output signal, when microwave components switch connection, oscillograph shows even
Continuous signal, as shown in Figure 4.When a switch is off, the blackout on oscillograph, as shown in Figure 5.
When the switch controlling signal continuous print of microwave components carry out open and close operation time, the signal on oscillograph by time sometimes
Nothing, as shown in Figure 6.
We use square wave control signal that microwave components is carried out equally spaced switching manipulation, when the cycle T 0 of square wave is longer
Time (switch have time enough carry out stable), the time interval with T0/2 is occurred, such as Fig. 7 institute by the signal on oscillograph
Show.
When the square-wave signal cycle shortens with big stepping B, the time interval that the signal on oscillograph occurs will shorten, such as Fig. 8
Shown in.
Cycle to the switch in microwave components continuing to shorten square wave control signal with big stepping B does not has time enough to ring
(should i.e. switch and be constantly in intermediateness), the output of signal is completely severed, as shown in Figure 9.Square wave control signal week now
What the half (T1/2) of phase can approximate is considered the switch response time RT of microwave components.
Lengthen the cycle of square wave control signal on the basis of this cycle T 1 with big stepping B, i.e. returning back to switch can ring
The critical state answered, then shortens the square wave control signal cycle with little stepping S, until the output of signal is completely severed again.
The half (T2/2) in square wave control signal cycle is i.e. regarded as the response time RT of this microwave components switch now.
If required precision is higher, aforesaid operations can be repeated, with approaching to reality value.
When whether the output judging signal is completely severed, only peak value need to be read on oscillograph.If higher than using
Family setting value L then shows that signal still can be exported by the switch of microwave components, i.e. represents that the half of square-wave cycle enough switchs
Respond.If less than user's setting value L, show that signal can not be exported by the switch of microwave components, i.e. represent square-wave cycle
Half be insufficient for switch and respond.The measurement of time parameter complicated on oscillograph is converted into the survey of signal peak
Amount.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1. a method of testing for microwave components based on frequency conversion square-wave signal switch response time, is characterized in that: include following
Step:
(1) use square wave control signal that microwave components is carried out equally spaced switching manipulation；
(2) big stepping length is set, by the big stepping length of cycle time one of square wave control signal, and the square wave after shortening
Control signal is input to microwave components；
(3) judge the peak value of the microwave components output signal that oscillograph receives whether more than setting value, if it is, return step
(2) continue to shorten the control signal cycle, if not then by a length of newly plus big stepping for the square wave control signal cycle now
The square wave control signal cycle, enter step (4)；
(4) little stepping length is set, by little for square wave control signal cycle time one stepping length, and the square wave control after shortening
Signal processed is input to microwave components；
(5) judge the peak value of the microwave components output signal that oscillograph receives whether more than setting value, if it is, return step
(4) continue to shorten the control signal cycle, if it is not, then switch response time is the now square wave control signal cycle two/
One.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: in described step (1), use square wave control signal that microwave components is carried out equally spaced switching manipulation, work as square wave
Initial period T0 when making switch have time enough to carry out stable, the time interval with T0/2 is gone out by the signal on oscillograph
Existing.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: in described step (2), when the square-wave signal cycle is with big stepping contraction in length, signal on oscillograph occur time
Between interval will shorten.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: in described step (2), when continuing with in cycle of big stepping contraction in length square wave control signal to microwave components
Switch is constantly in intermediateness, and the output signal of microwave components is completely severed.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: in described step (3), the square wave control signal cycle now is controlled letter plus a length of new square wave of big stepping
Number cycle, i.e. it return back to the critical state that switch can respond.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: in described step (3) and step (5), by judging that the peak value of microwave components output signal that oscillograph receives is
No more than setting value, to judge whether the output of signal is completely severed.
A kind of method of testing of microwave components based on frequency conversion square-wave signal switch response time,
It is characterized in that: if the peak value read on oscillograph is higher than setting value, show that signal still can be defeated by the switch of microwave components
Go out, i.e. represent that the half of square-wave cycle enough switchs and respond；If less than setting value, showing that signal can not pass through microwave group
The switch output of part, i.e. represents that the half of square-wave cycle is insufficient for switch and responds.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108196099A (en) * | 2017-12-20 | 2018-06-22 | 广州广电计量检测股份有限公司 | ON-OFF control circuit and test equipment |
| CN108804298A (en) * | 2018-06-15 | 2018-11-13 | 深圳库博能源科技有限公司 | A kind of device for the test of SCADA system response time |
| CN112198428A (en) * | 2020-12-02 | 2021-01-08 | 佛山市联动科技股份有限公司 | Method and system for testing response time of radio frequency switch chip |
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| CN106291349B (en) | 2018-09-25 |
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