CN106291183A - A kind of anti-interference multi-band signal harvester - Google Patents
A kind of anti-interference multi-band signal harvester Download PDFInfo
- Publication number
- CN106291183A CN106291183A CN201610637740.5A CN201610637740A CN106291183A CN 106291183 A CN106291183 A CN 106291183A CN 201610637740 A CN201610637740 A CN 201610637740A CN 106291183 A CN106291183 A CN 106291183A
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- China
- Prior art keywords
- band signal
- casing
- interference
- interference multi
- acquisition circuit
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention relates to a kind of anti-interference multi-band signal harvester, it is technically characterized by comprising the steps as follows: and includes casing, input, outfan, anti-interference multi-band signal Acquisition Circuit in earth terminal and casing, input, outfan, earth terminal is arranged in casing and is connected with the anti-interference multi-band signal Acquisition Circuit in casing, anti-interference multi-band signal Acquisition Circuit is made up of the multiple acquisition channels being connected in parallel, each acquisition channel all includes the sampling capacitance being cascaded, sampling inductance and permutator, a branch road containing varistor in parallel in Acquisition Circuit.The present invention is provided with multiple acquisition channel; and according to the central frequency range of sensed current signal and select corresponding passage; avoid the interference to detection work of other signals; achieve the separation acquisition function to different frequency range signal; improve accuracy in detection and detection efficiency; varistor branch road is as protection branch road simultaneously, it is possible to prevents exterior overvoltage from causing damage equipment, uses safety.
Description
Technical field
The invention belongs to live detection technical field, a kind of anti-interference multi-band signal harvester.
Background technology
Along with the further investigation of live detection technology, various detection equipment are developed to be developed, Cleaning Principle
Also it is not quite similar.At the scene during detection, generally require detection method and the instrument determining employing for equipment and defect type
Device, but owing to site environment is complex, interference signal often becomes a big problem of puzzlement testing staff, with regard to a power transformation
For standing, its comprise equipment may the most tens of kinds, the signal of generation also varies.Carrying out charged for a certain equipment
During detection, the signal that other equipment produces can form interference, the precision of impact test and efficiency to detection.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that one is reasonable in design, capacity of resisting disturbance strong and effect
The anti-interference multi-band signal harvester that rate is high.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
A kind of anti-interference multi-band signal harvester, including in casing, input, outfan, earth terminal and casing
Anti-interference multi-band signal Acquisition Circuit, described input, outfan, earth terminal are arranged in casing and do with resisting in casing
Disturbing multi-band signal Acquisition Circuit to be connected, described anti-interference multi-band signal Acquisition Circuit is by the multiple collections being connected in parallel
Passage is constituted, and each acquisition channel all includes sampling capacitance, sampling inductance and the permutator being cascaded.
The plurality of acquisition channel is also connected in parallel with a varistor.
Advantages of the present invention and good effect be:
1, the present invention is provided with multiple acquisition channel, and according to the central frequency range of sensed current signal, selects corresponding
Passage, thus the signal of other frequencies is considered as interference and carries out ground connection, outfan only gathers the signal of required frequency, it is to avoid
Other signals interference to detection work, it is achieved that the separation acquisition function to different frequency range signal, improves accuracy in detection
And detection efficiency.
2, the Acquisition Circuit of the present invention comprises a varistor parallel branch, it is possible to prevent exterior overvoltage from equipment being made
Become infringement, use safety.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of the present invention；
Wherein, 1-input, 2-outfan, 3-earth terminal, 4-sampling capacitance, 5-samples inductance, 6-permutator, and 7-presses
Quick resistance, 8-casing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described:
A kind of anti-interference multi-band signal harvester, as it is shown in figure 1, include casing 8, input 1, outfan 2, earth terminal
3 and casing in anti-interference multi-band signal Acquisition Circuit.Described input 1, outfan 2, earth terminal 3 are arranged on casing 8
Above and being connected with the anti-interference multi-band signal Acquisition Circuit in casing, this anti-interference multi-band signal Acquisition Circuit is by parallel connection
Multiple acquisition channels and varistor 7 together are constituted, sampling capacitance 4 that each acquisition channel all includes being cascaded,
Sampling inductance 5 and permutator 6, described varistor 7 is connected in parallel with each acquisition channel, varistor 7 can in case
Outside generation damages Acquisition Circuit electric elements during overvoltage, it is ensured that the safe handling of harvester.
During this signal picker onsite application, head end test sensor is connected to input 1, rear end is gathered main frame even
It is connected to outfan 2, earth terminal 3 reliable ground.According to the central frequency range of sensed current signal, select corresponding passage, will
The permutator 6 of this passage is allocated to output, and the permutator 6 of other passages is allocated to ground connection.According to circuit resonance principle, this passage
Sampling capacitance 4 with sampling inductance 5 minimum to the impedance of institute's frequency acquisition signal, it is achieved the separation and Extraction to desired signal, its
He imports the earth by rest channels by frequency band signals, and interference signal is served shielding action.This signal picker can be according to need
To determine number of channels and each channel acquisition frequency voluntarily, onsite application is convenient, flexible, simultaneously because built-in varistor 7, can
With prevent outside there is overvoltage time damage Acquisition Circuit electric elements, it is ensured that the safe handling of harvester.
This signal picker has multiple acquisition channel, can regulate the most voluntarily.The conversion that each passage is equipped with
Switch, is used for controlling to be connected with outfan or earth terminal.Each passage is by sampling capacitance CnWith sampling inductance LnComposition, according to electricity
Road resonance principle, when power frequency meets, circuit impedance is minimum, now optimal to the current lead-through performance of this frequency.Foundation
This principle, the ω that each passage is correspondingnBy CnAnd LnDetermine, according to the central frequency range of sensed current signal, select corresponding
Passage, is allocated to output by permutator, and the permutator of other passages is allocated to ground connection, is equivalent to the signal of other frequencies to be considered as
Interference carries out ground connection, and outfan only gathers the signal of required frequency, it is to avoid the interference to detection work of other signals, improves
Accuracy in detection and detection efficiency.
It is emphasized that embodiment of the present invention is illustrative rather than determinate, bag the most of the present invention
Include the embodiment being not limited to described in detailed description of the invention, every by those skilled in the art according to technical scheme
Other embodiments drawn, also belong to the scope of protection of the invention.
Claims (2)
1. an anti-interference multi-band signal harvester, it is characterised in that: include casing, input, outfan, earth terminal and
Anti-interference multi-band signal Acquisition Circuit in casing, described input, outfan, earth terminal are arranged in casing and and casing
In anti-interference multi-band signal Acquisition Circuit be connected, described anti-interference multi-band signal Acquisition Circuit is by being connected in parallel
Multiple acquisition channels are constituted, and each acquisition channel all includes sampling capacitance, sampling inductance and the permutator being cascaded.
2. according to the anti-interference multi-band signal harvester of the one described in claim, it is characterised in that: the plurality of collection is led to
Road is also connected in parallel with a varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637740.5A CN106291183A (en) | 2016-08-04 | 2016-08-04 | A kind of anti-interference multi-band signal harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637740.5A CN106291183A (en) | 2016-08-04 | 2016-08-04 | A kind of anti-interference multi-band signal harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106291183A true CN106291183A (en) | 2017-01-04 |
Family
ID=57665459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610637740.5A Pending CN106291183A (en) | 2016-08-04 | 2016-08-04 | A kind of anti-interference multi-band signal harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106291183A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176735A1 (en) * | 2017-03-29 | 2018-10-04 | 安徽云塔电子科技有限公司 | Integrated circuit, and testing method of integrated circuit |
| CN113075482A (en) * | 2021-03-29 | 2021-07-06 | 广东韶钢松山股份有限公司 | Electric power instrument |
| CN115856951A (en) * | 2023-02-22 | 2023-03-28 | 北京凯芯微科技有限公司 | Dual-mode frequency domain anti-interference circuit, baseband chip and navigation receiver |
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| CN1601893A (en) * | 2003-09-24 | 2005-03-30 | 精工爱普生株式会社 | Impedance circuit, and filter circuit, amplifier circuit, semiconductor integrated circuit using the same |
| CN200990142Y (en) * | 2006-11-23 | 2007-12-12 | 艾默生网络能源有限公司 | Voltage current collecting channel circuit |
| CN101485085A (en) * | 2006-07-03 | 2009-07-15 | 日立金属株式会社 | Branch circuit, high frequency circuit and high frequency module |
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| CN102377405A (en) * | 2010-08-19 | 2012-03-14 | 株式会社Ntt都科摩 | Multiband matching circuit |
| CN104656524A (en) * | 2013-11-22 | 2015-05-27 | 施耐德电器工业公司 | Multi-channel synchronous sampling holding circuit as well as digital sampling circuit and relay protection device |
| CN104753476A (en) * | 2013-12-30 | 2015-07-01 | 国民技术股份有限公司 | Multimode multi-frequency power amplifier |
| CN105372474A (en) * | 2015-10-10 | 2016-03-02 | 陕西千山航空电子有限责任公司 | Precision correction circuit and method of multichannel voltage signal collection circuit |
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| CN1601893A (en) * | 2003-09-24 | 2005-03-30 | 精工爱普生株式会社 | Impedance circuit, and filter circuit, amplifier circuit, semiconductor integrated circuit using the same |
| CN101485085A (en) * | 2006-07-03 | 2009-07-15 | 日立金属株式会社 | Branch circuit, high frequency circuit and high frequency module |
| CN200990142Y (en) * | 2006-11-23 | 2007-12-12 | 艾默生网络能源有限公司 | Voltage current collecting channel circuit |
| CN201430560Y (en) * | 2009-06-19 | 2010-03-24 | 太原惠特科技有限公司 | High voltage soft starter with optical fiber isolation function |
| CN102377405A (en) * | 2010-08-19 | 2012-03-14 | 株式会社Ntt都科摩 | Multiband matching circuit |
| CN104656524A (en) * | 2013-11-22 | 2015-05-27 | 施耐德电器工业公司 | Multi-channel synchronous sampling holding circuit as well as digital sampling circuit and relay protection device |
| CN104753476A (en) * | 2013-12-30 | 2015-07-01 | 国民技术股份有限公司 | Multimode multi-frequency power amplifier |
| CN105372474A (en) * | 2015-10-10 | 2016-03-02 | 陕西千山航空电子有限责任公司 | Precision correction circuit and method of multichannel voltage signal collection circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176735A1 (en) * | 2017-03-29 | 2018-10-04 | 安徽云塔电子科技有限公司 | Integrated circuit, and testing method of integrated circuit |
| US11221362B2 (en) | 2017-03-29 | 2022-01-11 | Anhui Yunta Electronic Technologies CO., LTD | Integrated circuit and test method for integrated circuit |
| CN113075482A (en) * | 2021-03-29 | 2021-07-06 | 广东韶钢松山股份有限公司 | Electric power instrument |
| CN115856951A (en) * | 2023-02-22 | 2023-03-28 | 北京凯芯微科技有限公司 | Dual-mode frequency domain anti-interference circuit, baseband chip and navigation receiver |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |