CN100473992C - Module for correcting synchronization of sensitive rod, and method for correcting synchronization of sensitive rod - Google Patents
Module for correcting synchronization of sensitive rod, and method for correcting synchronization of sensitive rod Download PDFInfo
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- CN100473992C CN100473992C CNB2005100366112A CN200510036611A CN100473992C CN 100473992 C CN100473992 C CN 100473992C CN B2005100366112 A CNB2005100366112 A CN B2005100366112A CN 200510036611 A CN200510036611 A CN 200510036611A CN 100473992 C CN100473992 C CN 100473992C
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Abstract
A method for calibrating synchronization of detection bars includes coupling detection bars to be calibrated between oscilloscope and pins of these bars, making signal inputted from signal pins be transmitted to detection bars synchronously since pins of detection bars are in the same length, using oscilloscope to regulate delay time of detection bars for making various detection bars be synchronized when signal waveforms displayed on oscilloscope are synchronized. The calibration module for realizing said method is also disclosed.
Description
[technical field]
The invention relates to a kind of correction module and method, and particularly relevant for a kind of probe synchronization correction module and method.
[background technology]
At present mostly measure high-frequency signal in the high-frequency circuit with active probe, and active probe is coupled to signal output part to be measured by a probe, so that signal is passed to an oscillograph via active probe, and then make oscillograph show the waveform of this high-frequency signal.
In the process of measurement signal, as desire to carry out between the signal sequential relatively, then need two probes are coupled to two signal output parts to be measured respectively, on oscillograph, to demonstrate two signal waveforms respectively.Yet the asynchronous transmission signal of two probes as if in order to measurement signal can cause error in measurement, causes the shown waveform sequential distortion of oscillograph.
[summary of the invention]
The object of the present invention is to provide a kind of probe synchronization correction module and probe synchronization bearing calibration, proofread and correct between a plurality of probes, to carry out synchronization, and then reduce the time of measuring signal.
The present invention proposes a kind of probe synchronization correction module, and it is suitable for that a plurality of probes are carried out synchronization and proofreaies and correct.This probe synchronization correction module mainly is made of oscillograph and correcting fixture, wherein oscillograph is in order to be coupled to an end of each probe, to receive and to show the signal waveform that each probe is measured, and correcting fixture has a signal pin and a plurality of probe pin, and the length of these probe pins is identical, and these probe pins are then in order to be coupled to the other end of these probes respectively.
In an embodiment of the present invention, the probe pin of above-mentioned correcting fixture for example is one-body molded with the signal pin.And, in one embodiment, the angle between the adjacent probe pin of correcting fixture for example be with signal pin and adjacent probe pin thereof between angle identical, this angle for example is 120 degree.In other words, this correcting fixture for example is to have two probe pins and a supported signal pin.
In an embodiment of the present invention, the material of above-mentioned correcting fixture can be the high desnity metal material, and it for example is copper, nickel, silver or aluminium.
The present invention proposes a kind of probe synchronization bearing calibration, and it is in order to proofread and correct the synchronization between a plurality of probes.The method provides above-mentioned probe synchronization correction module earlier, and then input signal is respectively coupled to these probes between the probe pin of oscillograph and correcting fixture again by the signal pin of this correcting fixture.At this moment, signal then is passed to these probes via these probe pins, and then shows the signal waveform that each probe measured on oscillograph.Afterwards, adjust these probes time delay of one of them at least according to these signal waveforms by oscillograph, so that each probe synchronization.
In an embodiment of the present invention, before these probes are coupled to these probe pins respectively, more comprise and proofread and correct these probes respectively, to improve the accuracy of measurement of these probes.
In an embodiment of the present invention, the method for input signal comprises that the signal pin with correcting fixture is coupled to a signal output part by the signal pin of correcting fixture, and in one embodiment, this signal output part for example is a high-frequency signal output terminal.
Compared to prior art, the present invention is passed to a plurality of probes with single signal Synchronization, so measurement person can adjust the time delay of these probes according to the shown signal waveform of oscillograph, and makes these probe synchronizations, and then improves the accuracy of measurement of probe.
[description of drawings]
Fig. 1 is the synoptic diagram of probe synchronization correction module of the present invention.
Fig. 2 is the flow chart of steps of probe synchronization bearing calibration of the present invention.
[embodiment]
Fig. 1 is the synoptic diagram of probe synchronization correction module of the present invention.Please refer to Fig. 1, probe synchronization correction module 100 is proofreaied and correct in order to a plurality of probes 102 are carried out synchronization, and probe synchronization correction module 100 mainly is made of oscillograph 110 and correcting fixture 120.Wherein, oscillograph 110 is in order to receiving the signal that each probe 102 is measured, and demonstrates signal waveform according to these signals.
Please continue with reference to Fig. 1, correcting fixture 120 has a signal pin 122 and a plurality of probe pin 124, and probe 102 to be corrected promptly is to be coupled between oscillograph 110 and these probe pins 124.Specifically, these probe pins 124 for example are one-body molded with signal pin 122, when avoiding signal to transmit in correcting fixture 120, because of the impedance problems such as producing signal reflex that do not match.In one embodiment, the material of correcting fixture 120 for example is the high-density metal material, so that transmit high-frequency signal.For instance, correcting fixture 120 for example is that metal material by copper, nickel, silver or the contour frequency range of aluminium is constituted.
The identical length of these probe pins 124 with, and it for example is 1 centimeter, the length of signal pin 122 then for example is 2.5 centimeters.And, folded angle θ between the two adjacent probe pins 124
1For example be the angle θ folded with signal pin 122 and adjacent probe pin thereof 124
2Identical.Therefore, after the signal pin 122 of correcting fixture 120 received signal by a signal output part (it for example is a certain electronic component 132 on the circuit board 130), these probe pins 124 were passed to signal Synchronization its probe that couples 102 respectively.In other words, each probe 102 receives the signal that correcting fixture 120 is transmitted simultaneously.
In the measurement process, generally use two probes 102 to measure, so present embodiment only explain as example with the situation of using two probes 102 to measure.That is to say that correcting fixture 120 for example is to have two probe pins 124 and the angle theta between these two probe pins 124
1For example be 120 degree, and the angle theta between each probe pin 124 and the signal pin 122
2Also equal 120 degree.Yet the present invention does not limit the quantity of the probe pin 124 of correcting fixture 120, can decide the quantity of probe pin 124 voluntarily according to the probe quantity of desiring to proofread and correct simultaneously, and adjusts angle theta according to the quantity of probe pin 124
1With angle theta
2
From the above, when these probes 102 transmitted signal synchronously, oscillograph 110 showed a plurality of synchronous signal waveforms.Otherwise, when these probes 102 do not transmit signal synchronously, then have a difference of injection time between shown these signal waveforms of oscillograph 110.At this moment, can adjust the sequential that each probe 102 transmits signal, so that each probe 102 transmits signal synchronously by oscillograph 110.Below will probe synchronization bearing calibration of the present invention be described, but it is not in order to limit the present invention for embodiment.
Fig. 2 is the flow chart of steps of probe synchronization bearing calibration of the present invention.Please refer to Fig. 2, before the synchronization of carrying out probe is proofreaied and correct, can proofread and correct each probe respectively earlier, as described in step S200.For instance, for example be that the frequency range of each probe is proofreaied and correct in step S200, so that its frequency range with the signal of desire measurement conforms to.
After each probe correction was finished, the synchronization that can begin between the probe was proofreaied and correct.Please continue with reference to Fig. 2, at first provide a probe synchronization correction module, as described in step S202.Wherein, the probe synchronization correction module that provided of step S202 for example is a probe synchronization correction module 100 shown in Figure 1.
Please be simultaneously with reference to Fig. 1 and Fig. 2, then carry out step S204, the input signal by the signal pin 122 of correcting fixture 120, and be coupled to respectively between the probe pin 124 of oscillograph 110 and correcting fixture 120 desiring to carry out the probe 102 that synchronization proofreaies and correct, and probe 102 and probe pin 124 are coupled one to one.Wherein, the method for input signal for example is that the signal pin 122 with correcting fixture 120 is coupled to a signal output part, and it for example is to be coupled to a high-frequency signal output terminal.At this moment, signal is passed to each probe 102 via probe pin 124, is passed to oscillograph 110 via probe 102 again, and then shows the signal waveform that each probe 102 is measured on oscillograph 110.In step S204, the time interval of oscillograph 110 can also be reached maximum, conveniently to observe the signal waveform that each probe 102 is measured.
From the above, when the shown signal waveform of oscillograph 110 is asynchronous, then carry out step S206, adjusting the time delay of certain probe 102, and then make these probes 102 can transmit signal synchronously by oscillograph 110.In more detail, step S206 increases signal transmission speed time delay of probe faster, or reduces the time delay of the slower probe of signal transmission speed.In addition, if when oscillograph 110 shown signal waveforms are synchronous signal waveform, then finish this synchronization and proofread and correct.
In sum, because the present invention is passed to a plurality of probes with single signal Synchronization, so measurement person can judge whether these probes transmit signal synchronously according to the shown signal waveform of oscillograph.When these probes do not transmit signal synchronously, then can pass through to adjust the time delay of these probes, and make these probe synchronizations.Hence one can see that, uses probe synchronization correction module of the present invention to carry out synchronization to probe accurately and proofread and correct, and with the accuracy of measurement of raising probe, and then reduces error in measurement.
And, the present invention can be applicable in the synchronization trimming process of various probes, the synchronization that particularly is applied in the active probe that is used for measuring high-frequency signal is proofreaied and correct, so that active probe can measure each high-frequency signal exactly, so that operator's sequential of these high-frequency signals relatively.
In addition, correcting fixture of the present invention also has and makes simple, low, easy to carry, the easy disassembling of cost And be suitable for proofreading and correct the advantage of various probes.
Claims (8)
1. a probe synchronization correction module is suitable for proofreading and correct the synchronization between a plurality of probes, and this probe synchronization correction module comprises:
One oscillograph is suitable for being coupled to a respectively end of this probe, to receive and the demonstration signal waveform that respectively this probe was measured; And
One correcting fixture, have a signal pin and a plurality of probe pin, wherein the length of these probe pins is identical, and these probe pins are suitable for being coupled to respectively the other end of these probes, this signal pin and these probe pins of this correcting fixture are one-body molded, and folder one angle between these adjacent probe pins of this correcting fixture, and folded angle equals this angle between this signal pin and adjacent these probe pins thereof.
2. probe synchronization correction module according to claim 1 is characterized in that: this angle is 120 degree.
3. probe synchronization correction module according to claim 1 is characterized in that; The material of this correcting fixture is a high desnity metal material.
4. probe synchronization correction module according to claim 3 is characterized in that: this high desnity metal material comprises copper, nickel, silver or aluminium.
5. a probe synchronization bearing calibration is suitable for proofreading and correct the synchronization between a plurality of probes, and this probe synchronization bearing calibration comprises:
One probe synchronization correction module is provided, and this probe synchronization correction module comprises an oscillograph and a correcting fixture, and this correcting fixture has a signal pin and a plurality of probe pin, and respectively the length of this probe pin is identical;
Signal pin by this correcting fixture is imported a signal, and these probes are coupled to this oscillograph and these probe pins respectively between one of them, this signal then is passed to these probes via these probe pins, and shows the signal waveform that respectively this probe measured on this oscillograph; And
Adjust these probes time delay of one of them at least according to these signal waveforms by this oscillograph, so that respectively this probe synchronization.
6. probe synchronization bearing calibration according to claim 5 is characterized in that: before these probes are coupled to these probe pins respectively, more comprise and proofread and correct these probes respectively.
7. probe synchronization bearing calibration according to claim 5 is characterized in that: the method for importing this signal by this signal pin comprises:
This signal pin of this correcting fixture is coupled to a signal output part.
8. probe synchronization bearing calibration according to claim 7 is characterized in that: this signal output part comprises a high-frequency signal output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100366112A CN100473992C (en) | 2005-08-19 | 2005-08-19 | Module for correcting synchronization of sensitive rod, and method for correcting synchronization of sensitive rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100366112A CN100473992C (en) | 2005-08-19 | 2005-08-19 | Module for correcting synchronization of sensitive rod, and method for correcting synchronization of sensitive rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916642A CN1916642A (en) | 2007-02-21 |
| CN100473992C true CN100473992C (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100366112A Expired - Fee Related CN100473992C (en) | 2005-08-19 | 2005-08-19 | Module for correcting synchronization of sensitive rod, and method for correcting synchronization of sensitive rod |
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| CN (1) | CN100473992C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872744A (en) * | 2017-02-23 | 2017-06-20 | 上海斐讯数据通信技术有限公司 | The measuring method and measuring system of a kind of differential signal |
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- 2005-08-19 CN CNB2005100366112A patent/CN100473992C/en not_active Expired - Fee Related
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Granted publication date: 20090401 Termination date: 20110819 |