CN109884567A - A kind of ultralow frequency frequency response analyzer phase angle calibrating installation - Google Patents
A kind of ultralow frequency frequency response analyzer phase angle calibrating installation Download PDFInfo
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- CN109884567A CN109884567A CN201811648960.3A CN201811648960A CN109884567A CN 109884567 A CN109884567 A CN 109884567A CN 201811648960 A CN201811648960 A CN 201811648960A CN 109884567 A CN109884567 A CN 109884567A
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- frequency
- phase angle
- frequency response
- calibrating installation
- ultralow
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Abstract
The invention discloses a kind of ultralow frequency frequency response analyzer phase angle calibrating installations, belong to special test equipment field of measuring techniques, including input/output signal conditioning module and multiple groups frequency and phase shift block two parts, the input/output signal conditioning module is connected with the multiple groups frequency and phase shift block by testing cable.Ultralow frequency frequency response analyzer phase angle calibrating installation disclosed by the invention, overcoming existing calibration means, there are actual use can not be completely covered in the calibration of Frequency Response Analysis device phase angle frequencies and phase angle range, with conventional Frequency Response Analyser calibration method not in full conformity with the problem of, realize the magnitude tracing of servo unit tester frequency response characteristic, phase shift accuracy is better than ± 0.25 °.
Description
Technical field
The present invention relates to a kind of ultralow frequency frequency response analyzer phase angle calibrating installations, belong to special test equipment metering skill
Art field.
Background technique
Important single machine of the servo unit tester as verifying servo mechanism basic performance, in servo mechanism research and production
Play a significant role.
One important performance of servo unit tester is measured to the frequency response characteristic of servo mechanism, magnitude
Accuracy and reliability directly affects the properties of product of servo mechanism.And existing means are mainly by servo simulator come real
Existing, there are actual use can not be completely covered in the calibration of Frequency Response Analysis device phase angle frequencies and phase angle range, with conventional Frequency Response Analysis
Instrument calibration method not in full conformity with the problem of.
In order to solve this problem, it is necessary to establish a kind of ultralow frequency frequency response analyzer phase angle calibrating installation, realize
The magnitude tracing of servo unit tester frequency response analyzer phase angle.
Summary of the invention
The object of the present invention is to which proposition in view of the above problems, provides a kind of ultralow frequency frequency response analyzer phase angle school
Standard apparatus, overcoming existing calibration means, there are actual use can not be completely covered in the calibration of Frequency Response Analysis device phase angle frequencies and phase angle
Range, with conventional Frequency Response Analyser calibration method not in full conformity with the problem of, realize servo unit tester frequency response characteristic
Magnitude tracing.
Above-mentioned purpose of the invention reaches by the following technical programs
A kind of ultralow frequency frequency response analyzer phase angle calibrating installation, it is characterised in that: improved including input/output signal
Module and multiple groups frequency and phase shift block two parts, the input/output signal conditioning module and the multiple groups frequency and phase shift
Module is connected by testing cable.
Preferably, the input/output signal conditioning module includes reverse voltage follower, and input terminal is at least provided with one
Proportion resistor, output end are connected with a proportion resistor.
Preferably, the reverse voltage follower is the operational amplifier OP200 of high-precision low-drift.
Preferably, the travel(l)ing phase in the multiple groups frequency and phase shift block is 0 °, 1 °, 10 °, 90 °.
Preferably, the combination of frequency in the multiple groups frequency and phase shift block is 1Hz, 5Hz, 10Hz, 50Hz.
The utility model has the advantages that
Ultralow frequency frequency response analyzer phase angle calibrating installation disclosed by the invention, overcoming existing calibration means, there are frequency responses
Analyzer phase angle calibrates the frequency and phase angle range that actual use can not be completely covered, not with conventional Frequency Response Analyser calibration method
The problem of complying fully with, realize servo unit tester frequency response characteristic magnitude tracing, phase shift accuracy better than ±
0.25°。
Elaborate with reference to the accompanying drawings and detailed description to the present invention: the present embodiment is with the technology of the present invention side
Implemented under premised on case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not
It is limited to following embodiments.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 1.
Fig. 2 is the connection schematic diagram of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 2.
Fig. 3 is the connection schematic diagram of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 3.
Fig. 4 is the connection schematic diagram of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 4.
Fig. 5 is the connection schematic diagram of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 5.
Fig. 6 is the connection of tetra- kinds of frequencies of 1Hz, 5Hz, 10Hz, 50Hz in multiple groups frequency and phase shift block in the present invention
Schematic diagram.
Specific embodiment
Embodiment 1
As shown in Figure 1, being the connection of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 1
Schematic diagram, ultralow frequency frequency response analyzer phase angle calibrating installation of the invention includes input/output signal conditioning module and multiple groups
Frequency and phase shift block two parts realize the accurate phase shift of various phase angles under multiple groups frequency by Frequency point and phase point combination,
Realize the accurate calibration to servo unit tester ultralow frequency Frequency Response Analysis device phase angle.
The reverse voltage that input/output signal conditioning module is made of the operational amplifier OP200 of a high-precision low-drift
Follower realizes the conditioning to input/output signal, by resistance R31 input signal Ui, by voltage follower (OP200)
Afterwards, signal Ui becomes SW1；Input signal SW2, after voltage follower, signal SW2 becomes Uo；Reverse voltage follower
OP200 input terminal is connected with R31, be proportion resistor, wherein 1 represent 1 output end of amplifier, 2 represent amplifier 1 input low side, 3 generations
Table amplifier 1 inputs high-end, 4 representative fortune supply voltage low sides, and it is proportion resistor that output end, which is connected with R32, wherein 5 represent fortune
Put that 2 inputs are high-end, 6 represent amplifier 2 and export that low side, 7 amplifier, 2 output end, 8 to represent supply voltage high-end；Wherein, amplifier 2 inputs
High-end 5 are connected by test cable with 0 ° of contact S0 of travel(l)ing phase in multiple groups frequency and phase shift block.
Embodiment 2
As shown in Fig. 2, being the connection of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 2
Schematic diagram；The reverse voltage that input/output signal conditioning module is made of the operational amplifier OP200 of a high-precision low-drift
Follower realizes the conditioning to input/output signal, by resistance R31 input signal Ui, by voltage follower (OP200)
Afterwards, signal Ui becomes SW1；Input signal SW2, after voltage follower, signal SW2 becomes Uo；Reverse voltage follower
OP200 input terminal is connected with R31, be proportion resistor, wherein 1 represent 1 output end of amplifier, 2 represent amplifier 1 input low side, 3 generations
Table amplifier 1 inputs high-end, 4 representative fortune supply voltage low sides, and it is proportion resistor that output end, which is connected with R32, wherein 5 represent fortune
Put that 2 inputs are high-end, 6 represent amplifier 2 and export that low side, 7 amplifier, 2 output end, 8 to represent supply voltage high-end；Wherein, amplifier 2 inputs
High-end 5 pass through test cable, tri- series resistances of R41, R42, R43,1 ° of contact S1 of travel(l)ing phase and multiple groups frequency and phase shift mould
1 ° of compensation resistance R1X of movement in block is connected.
Embodiment 3
As shown in figure 3, being the connection of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 3
Schematic diagram；The reverse voltage that input/output signal conditioning module is made of the operational amplifier OP200 of a high-precision low-drift
Follower realizes the conditioning to input/output signal, by resistance R31 input signal Ui, by voltage follower (OP200)
Afterwards, signal Ui becomes SW1；Input signal SW2, after voltage follower, signal SW2 becomes Uo；Reverse voltage follower
OP200 input terminal is connected with R31, be proportion resistor, wherein 1 represent 1 output end of amplifier, 2 represent amplifier 1 input low side, 3 generations
Table amplifier 1 inputs high-end, 4 representative fortune supply voltage low sides, and it is proportion resistor that output end, which is connected with R32, wherein 5 represent fortune
Put that 2 inputs are high-end, 6 represent amplifier 2 and export that low side, 7 amplifier, 2 output end, 8 to represent supply voltage high-end；Wherein, amplifier 2 inputs
High-end 5 pass through test cable, 10 ° of contact S10 of tri- series resistances of R44, R45, R46 and travel(l)ing phase and mobile 10 ° of compensation
Resistance R10X is connected.
Embodiment 4
As shown in figure 4, being the connection of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 4
Schematic diagram；The reverse voltage that input/output signal conditioning module is made of the operational amplifier OP200 of a high-precision low-drift
Follower realizes the conditioning to input/output signal, by resistance R33 input signal, after voltage follower (OP200),
Two points of SW1 and S91 are linked together by test cable；90 ° of phase shift of connection relationship under 10Hz.
Embodiment 5
As shown in figure 5, being the connection of the ultralow frequency frequency response analyzer phase angle calibrating installation of the embodiment of the present invention 5
Schematic diagram；The reverse voltage that input/output signal conditioning module is made of the operational amplifier OP200 of a high-precision low-drift
Follower realizes the conditioning to input/output signal, by resistance R35 input signal, after voltage follower (OP200),
Two points of SW1 and S93 are linked together by test cable；90 ° of phase shift of connection relationship under 50Hz.
Multiple groups frequency and phase shift block in the present invention are combined by phase and frequency selection；Travel(l)ing phase can be with
There are four types of: 0 ° of contact S0 of travel(l)ing phase；1 ° of contact S1 of travel(l)ing phase；10 ° of contact S10 of travel(l)ing phase；
There are four types of combination of frequency possibility in the present invention: 1Hz, 5Hz, 10Hz, 50Hz；As shown in fig. 6, being in the present invention
The connection schematic diagram of tetra- kinds of frequencies of 1Hz, 5Hz, 10Hz, 50Hz in multiple groups frequency and phase shift block；Wherein, S1H is 1Hz frequency
Rate contact, C1 are 1Hz frequency capacitors；S5H is 5Hz frequency contact, and C2, C3 are 5Hz frequency capacitors；S10H is 10Hz frequency
Contact, C4 are 10Hz frequency capacitors；S50H is 50Hz frequency contact, and C5, C6 are 50Hz frequency capacitors；S1H,S5H,
Connection between S10H, S50H is publicly.
The present invention is calculated by multiple groups RC circuit by accurate, selects and combine the precision resistance and electricity of suitable resistance value and capacitance
Hold to constitute, forms tetra- kinds of frequencies of 1Hz, 5Hz, 10Hz, 50Hz and 0 °, 1 °, 10 °, 90 ° of four kinds of phase angles altogether, by calibration test,
Its phase shift accuracy is better than ± 0.25 °, and four kinds of frequencies and four kinds of phase angles can be in any combination.
Claims (5)
1. a kind of ultralow frequency frequency response analyzer phase angle calibrating installation, it is characterised in that: improve mould including input/output signal
Block and multiple groups frequency and phase shift block two parts, the input/output signal conditioning module and the multiple groups frequency and phase shift mould
Block is connected by testing cable.
2. ultralow frequency frequency response analyzer phase angle calibrating installation as described in claim 1, it is characterised in that: the input is defeated
Signal conditioning module includes reverse voltage follower out, and input terminal is connected with one at least provided with a proportion resistor, output end
A proportion resistor.
3. ultralow frequency frequency response analyzer phase angle calibrating installation as claimed in claim 2, it is characterised in that: the reverse phase electricity
Pressing follower is the operational amplifier OP200 of high-precision low-drift.
4. ultralow frequency frequency response analyzer phase angle calibrating installation as claimed in claim 3, it is characterised in that: the multiple groups frequency
Travel(l)ing phase in rate and phase shift block is 0 °, 1 °, 10 °, 90 °.
5. ultralow frequency frequency response analyzer phase angle calibrating installation as claimed in claim 4, it is characterised in that: the multiple groups frequency
Combination of frequency in rate and phase shift block is 1Hz, 5Hz, 10Hz, 50Hz.
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| CN201811648960.3A CN109884567A (en) | 2018-12-30 | 2018-12-30 | A kind of ultralow frequency frequency response analyzer phase angle calibrating installation |
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Citations (6)
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| JP2006528769A (en) * | 2003-07-24 | 2006-12-21 | ユニバーシティ、カレッジ、カーディフ、コンサルタンツ、リミテッド | High frequency circuit analyzer, method of measuring response of electronic device to high frequency input signal and calibration method thereof, and method of improving and manufacturing the design of a circuit including them. |
| CN202083742U (en) * | 2011-03-03 | 2011-12-21 | 赵孔新 | Digital excitation source and detection switching channel of ultra-low frequency wideband frequency characteristic analyzer |
| EP2573574A1 (en) * | 2011-09-21 | 2013-03-27 | EADS Deutschland GmbH | Handheld test probe assembly for non-contacting microwave measurements and method of using same |
| CN206402199U (en) * | 2016-12-22 | 2017-08-11 | 四川航天计量测试研究所 | A kind of ultralow frequency precision digital phase shifter and its phase-shift circuit |
| CN108132448A (en) * | 2017-12-26 | 2018-06-08 | 北京无线电计量测试研究所 | For the device and method of phase generator phase zero point correction |
| CN207557345U (en) * | 2017-12-14 | 2018-06-29 | 湖南工学院 | A kind of digital phase measuring instrument |
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2018
- 2018-12-30 CN CN201811648960.3A patent/CN109884567A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006528769A (en) * | 2003-07-24 | 2006-12-21 | ユニバーシティ、カレッジ、カーディフ、コンサルタンツ、リミテッド | High frequency circuit analyzer, method of measuring response of electronic device to high frequency input signal and calibration method thereof, and method of improving and manufacturing the design of a circuit including them. |
| CN202083742U (en) * | 2011-03-03 | 2011-12-21 | 赵孔新 | Digital excitation source and detection switching channel of ultra-low frequency wideband frequency characteristic analyzer |
| EP2573574A1 (en) * | 2011-09-21 | 2013-03-27 | EADS Deutschland GmbH | Handheld test probe assembly for non-contacting microwave measurements and method of using same |
| CN206402199U (en) * | 2016-12-22 | 2017-08-11 | 四川航天计量测试研究所 | A kind of ultralow frequency precision digital phase shifter and its phase-shift circuit |
| CN207557345U (en) * | 2017-12-14 | 2018-06-29 | 湖南工学院 | A kind of digital phase measuring instrument |
| CN108132448A (en) * | 2017-12-26 | 2018-06-08 | 北京无线电计量测试研究所 | For the device and method of phase generator phase zero point correction |
Non-Patent Citations (2)
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| 王骅: "程控超低频精密移相器研制", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
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Application publication date: 20190614 |
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