CN106291349B - The test method of microwave components switch response time based on frequency conversion square-wave signal - Google Patents
The test method of microwave components switch response time based on frequency conversion square-wave signal Download PDFInfo
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- CN106291349B CN106291349B CN201610681640.2A CN201610681640A CN106291349B CN 106291349 B CN106291349 B CN 106291349B CN 201610681640 A CN201610681640 A CN 201610681640A CN 106291349 B CN106291349 B CN 106291349B
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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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- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
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Abstract
The invention discloses a kind of, and the microwave components based on frequency conversion square-wave signal switch the test method of response time, and equally spaced switching manipulation is carried out to microwave components using square wave control signal；Big stepping length is set, the period of square wave control signal is constantly shortened with one 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 period of square wave control signal is lengthened into one big stepping length, small stepping length is set, the square wave control signal period is constantly shortened with one small 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 the half that the response time is the square wave control signal period at this time.The present invention by switch response time interchannel test conversion at the single pass test of microwave components output signal, without the concern for the stationary problem of interchannel.
Description
Technical field
The present invention relates to a kind of, and the microwave components based on frequency conversion square-wave signal switch the test method of response time.
Background technology
In the automatic test that microwave components switch the response time, conventional method needs to consider trigger port and signal at present
Stationary problem between output channel, and by program-controlled mode when obtaining the response time of switch on oscillograph, oscillograph is sentenced
The standard that break signal is stablized is difficult to hold.
The microwave components switch response time is the important indicator for weighing microwave components.
The general test method for using interchannel at present, as shown in Figure 1.Oscillograph is using microwave components control signal as tactile
Hair acquires the signal waveform of signal output channels, reads this section until stable output signal since control signal is effectively
Response time of the time interval as switch.
Time parameter of 1 rising edge of programmable oscilloscope Acquisition channel to some effective rising edge in channel 2.
The prior art needs to consider the stationary problem of interchannel, and the setting of oscillograph is complicated in test process.And with it is manual
Test is different, and when being obtained since controlling signal triggering to the signal-stabilized time by program-controlled mode, oscillograph judges defeated
Go out signal-stabilized standard (i.e. beginning of which rising edge of output signal as stable output signal) often bad assurance.
Invention content
The present invention is to solve the above-mentioned problems, it is proposed that it is a kind of based on frequency conversion square-wave signal microwave components switch response when
Between test method, the present invention will switch response time interchannel test conversion at the single pass survey of microwave components output signal
Examination, without the concern for the stationary problem of interchannel.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of test method of the microwave components switch response time based on frequency conversion square-wave signal, includes the following steps：
(1) period longer square wave control signal is input to microwave components, and microwave signal is between microwave components output end etc.
Every output；
(2) big stepping length is set, by the one big stepping length of the cycle time of square wave control signal, and will be after shortening
Square wave control signal is input to microwave components；
(3) judge whether the peak value for the microwave components output signal that oscillograph receives is greater than the set value, if it is, returning
Step (2) continues to shorten the control signal period, if it is not, then the period of square wave control signal at this time is added big stepping length
For the new square wave control signal period, enter step (4)；
(4) small stepping length is set, by the one small stepping length of square wave control signal cycle time, and by the side after shortening
Wave control signal is input to microwave components；
(5) judge whether the peak value for the microwave components output signal that oscillograph receives is greater than the set value, if it is, returning
Step (4) continues to shorten the control signal period, if it is not, then the switch response time is the two of square wave control signal period at this time
/ mono-.
In the step (1), equally spaced switching manipulation is carried out to microwave components using square wave control signal, when square wave
When initial period T0 makes switch have time enough to be stablized, the signal on oscillograph will be gone out with the time interval of T0/2
It is existing.
In the step (2), when the square-wave signal period is shortened with big stepping length, the time of the signal appearance on oscillograph
Interval will shorten.
In the step (2), when in the period to microwave components for continuing to shorten square wave control signal with big stepping length
Switch is constantly in intermediate state, and the output signal of microwave components is completely severed.
In the step (3), the square wave control signal period at this time is controlled into letter plus big stepping length for new square wave
Number period return back to the critical condition that switch can respond.
In the step (3) and step (5), by judge oscillograph receive microwave components output signal peak value whether
It is greater than the set value, to judge whether the output of signal is completely severed.
Show that signal can still be exported by the switch of microwave components if the peak value read on oscillograph is higher than setting value,
Indicate that the half switch enough of square-wave cycle is responded；Show that signal cannot be by microwave components if being less than setting value
Switch output indicates that the half of square-wave cycle is insufficient for switch and is responded.
Beneficial effects of the present invention are：
(1) present invention will switch the test conversion of response time interchannel into the single pass survey of microwave components output signal
Examination, the test of oscillograph single channel are realized simply, without the concern for the stationary problem of interchannel；
(2) present invention programmable oscilloscope is obtained complicated time parameter operation be converted into judging signal whether there is or not amplitude survey
Examination, the peak value of oscillograph judges the simplest that ordinary oscilloscope can be realized, the acquisition of complicated time parameter in automatic test
It is unsatisfactory sometimes.
(3) square wave control signal period stepping of the present invention rationally switches, and ensures to have taken into account test while test speed
Precision.
Description of the drawings
Fig. 1 is the traditional switch response time to test block diagram；
Fig. 2 is the switch response time of the present invention to test block diagram；
Fig. 3 is the switch response time test schematic of the present invention；
Fig. 4 is oscillograph-continuous signal figure of the present invention；
Fig. 5 is the oscillograph-of the present invention without input signal figure；
Fig. 6 is oscillograph-interval signal figure of the present invention；
Fig. 7 is square wave control signal period state diagram when being T0 of the present invention；
Fig. 8 is square wave control signal period state diagram when being T0-B of the present invention；
Fig. 9 is square wave control signal period state diagram when being T1 of the present invention.
Specific implementation mode：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The present invention provides a kind of completely new microwave components to switch response time test method, and (principle refers to as shown in Figure 2
Fig. 3).
Oscillograph single channel receives microwave components output signal, when microwave components switch connection, the company of display on oscillograph
Continuous signal, as shown in Figure 4.When a switch is off, the blackout on oscillograph, as shown in Figure 5.
When the switch control signal of microwave components continuously carries out open and close operation, signal on oscillograph by when sometimes
Nothing, as shown in Figure 6.
We carry out equally spaced switching manipulation using square wave control signal to microwave components, when the cycle T 0 of square wave is longer
When (switch there is time enough to be stablized), the signal on oscillograph will occur with the time interval of T0/2, such as Fig. 7 institutes
Show.
When the square-wave signal period is shortened with big stepping B, the time interval that the signal on oscillograph occurs will shorten, such as Fig. 8
It is shown.
Continue to shorten with big stepping B the no time enough of switch in the period to microwave components of square wave control signal to ring
(i.e. switch is constantly in intermediate state) is answered, the output of signal is completely severed, as shown in Figure 9.Present square wave control signal week
The half (T1/2) of phase can approximately be considered the switch response time RT of microwave components.
The period of square wave control signal is lengthened with big stepping B on the basis of cycle T 1, that is, returning back to switch can ring
Then the critical condition answered shortens the square wave control signal period with small stepping S, until the output of signal is completely severed again.
The half (T2/2) in present square wave control signal period is regarded as the response time RT of microwave components switch.
If required precision is higher, aforesaid operations can be repeated, with approaching to reality value.
When whether the output for judging signal is completely severed, peak value only need to be read on oscillograph.If higher than using
Family setting value L then shows that signal can still be exported by the switch of microwave components, that is, indicates that the half of square-wave cycle switchs enough
It is responded.If less than showing that signal cannot be exported by the switch of microwave components if user's setting value L, that is, indicate square-wave cycle
Half be insufficient for switch responded.By the measures conversion of complicated time parameter on oscillograph at the survey of signal peak
Amount.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (7)
1. a kind of test method of the microwave components switch response time based on frequency conversion square-wave signal, it is characterized in that：Including following
Step：
(1) square wave control signal is used to carry out equally spaced switching manipulation to microwave components；
(2) big stepping length is set, by the one big stepping length of the cycle time of square wave control signal, and by the square wave after shortening
Control signal is input to microwave components；
(3) judge whether the peak value for the microwave components output signal that oscillograph receives is greater than the set value, if it is, return to step
(2) period for continuing shortening square wave control signal, if not then by the period of square wave control signal at this time plus big stepping
Length is new square wave control signal cycle T, is entered step (4)；
(4) small stepping length is set, square wave control signal cycle T is shortened into one small stepping length, and by the square wave after shortening
Control signal is input to microwave components；
(5) judge whether the peak value for the microwave components output signal that oscillograph receives is greater than the set value, if it is, return to step
(4) continue to shorten the square wave control signal period, if it is not, then the switch response time is the two of square wave control signal period at this time
/ mono-.
2. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：In the step (1), equally spaced switching manipulation is carried out to microwave components using square wave control signal, works as square wave
Initial period T0 make switch when thering is time enough to be stablized, the signal on oscillograph will be gone out with the time interval of T0/2
It is existing.
3. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：In the step (2), when the square-wave signal period is shortened with big stepping length, signal on oscillograph occur when
Between interval will shorten.
4. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：In the step (2), when in the period to microwave components for continuing to shorten square wave control signal with big stepping length
Switch is constantly in intermediate state, and the output signal of microwave components is completely severed.
5. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：In the step (3), if it is not, it is new that the square wave control signal period at this time, which is added big stepping length,
Square wave control signal cycle T return back to the critical condition that switch can respond.
6. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：In the step (3) and step (5), by judging that the peak value of microwave components output signal that oscillograph receives is
It is no to be greater than the set value, to judge whether the output of signal is completely severed.
7. the test method of microwave components switch response time based on frequency conversion square-wave signal as described in claim 1 a kind of,
It is characterized in that：Show that signal still can be defeated by the switch of microwave components if the peak value read on oscillograph is higher than setting value
Go out, that is, indicates that the half switch enough of square-wave cycle is responded；Show that signal cannot be by microwave group if being less than setting value
The switch of part exports, that is, indicates that the half of square-wave cycle is insufficient for switch and is responded.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108196099B (en) * | 2017-12-20 | 2020-05-19 | 广州广电计量检测股份有限公司 | Switch control circuit and test equipment |
| CN108804298B (en) * | 2018-06-15 | 2022-02-11 | 深圳库博能源科技有限公司 | Device for testing response time of SCADA system |
| CN112198428B (en) * | 2020-12-02 | 2021-03-30 | 佛山市联动科技股份有限公司 | Method and system for testing response time of radio frequency switch |
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