CN202994875U - A multi-channel calibrating device - Google Patents
A multi-channel calibrating device Download PDFInfo
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- CN202994875U CN202994875U CN 201220669257 CN201220669257U CN202994875U CN 202994875 U CN202994875 U CN 202994875U CN 201220669257 CN201220669257 CN 201220669257 CN 201220669257 U CN201220669257 U CN 201220669257U CN 202994875 U CN202994875 U CN 202994875U
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- calibrating
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Abstract
The utility model relates to the field of avionic technology and specifically discloses a multi-channel calibrating device comprising a calibrator 1. Four ports a1, a2, a3 and a4 on the calibrator 1 are connected with a first switch 101, a second switch 102, a third switch 103 and a third switch 104 respectively. The multi-channel calibrating device is provided for solving the problem of vast test tasks for the multi-channel and multi-parameter requirements. The multi-channel calibrating device is simple in structure and convenient to use, saves test resources, reduces test costs greatly, and solves the long-standing problem of contradiction between less test ports and massive to-be-tested device signals. The multi-channel calibrating device realizes a self-checking function of an automatic calibrating system effectively and is capable of realizing extension and rearrangement of the calibrating system through cascade connection of switch systems.
Description
Technical field
The utility model belongs to the avionics field, particularly relates to a kind of hyperchannel calibrating installation.
Background technology
Traditional measurement and calibration detection mode is to adopt the universal electric instrument and equipments such as general digital voltage table, digital frequency meter or oscillograph to carry out manual calibration, all signals are all by artificial pointwise test, metrological personnel need to constantly change the wiring relation, surveying instrument equipment is carried out various setting operations along with the variation of measurement data, the calibration operation amount is large, the consumption time is tediously long, inefficiency, can't provide Metrology Support accurately and reliably to testing apparatus.
Summary of the invention
Goal of the invention: the purpose of this utility model is to provide a kind of hyperchannel calibrating installation, can solve less and the contradiction that the equipment under test signal is more of test port.
Technical scheme: a kind of hyperchannel calibrating installation, comprise correcting device 1, four port a1, a2 on correcting device 1, a3, a4 are connected with the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 respectively, described the first switch 101 be connected to the first program control multiplexer switch 201 after second switch 102 is connected, described the 3rd switch 103 be connected to the second program control multiplexer switch 202 after the 4th switch 104 is connected.
Described correcting device 1 is multimeter or frequency meter.
Described the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 are relay switch.
Beneficial effect: the utility model is for problems such as the test assignment of hyperchannel, multiparameter demand are many, a kind of hyperchannel calibrating installation is provided, this apparatus structure is simple, easy to use, can save test resource on the one hand, greatly reduce on the other hand testing cost, solved less and the contradiction that the equipment under test signal is more of long-standing test port.The utility model has not only been realized the self-checking function of automated calibration system effectively, by the cascade of switching system, can also realize the expansion of calibration system and reconfigure.
Description of drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is that the utility model uses view.
Wherein, 1-correcting device, 101-the first switch, 102-second switch, 103-the 3rd switch, 104-the 4th switch, the program control multiplexer switch of 201-first, the program control multiplexer switch of 202-second.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, sees also Fig. 1 to Fig. 2.
The utility model is based on limited test resource and the tested port of multichannel, but introduce the switching network of reliable and stable, safe, little interference and flexible configuration, within certain period, the specific network path of conducting is also completed once test, by the on off state of handover network inside, thereby the ergodicity that realizes system is tested.Concrete technical scheme is as follows:
As shown in Figure 1, a kind of hyperchannel calibrating installation, comprise correcting device 1, four port a1, a2 on correcting device 1, a3, a4 are connected with the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 respectively, described the first switch 101 be connected to the first program control multiplexer switch 201 after second switch 102 is connected, described the 3rd switch 103 be connected to the second program control multiplexer switch 202 after the 4th switch 104 is connected.
Built-in testing module in described correcting device 1, port a1, a2, a3, a4 voltage value are determined, difference according to testing requirement, built-in testing inside modules circuit can carry out the adaptability configuration to the mode of connection of a1, a2, a3, four ports of a4, selects to go measurement or calibration voltage, electric current, resistance or frequency signal.
As shown in Figure 2, the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 belong to the large power, electrically way switch, are used for measuring, calibrating powerful electric current, voltage signal; And the first program control multiplexer switch 201 and the second program control multiplexer switch 202 are small power electric way switch, are used for measuring, calibrating electric current and the voltage signal of smaller power.
Described correcting device 1 is multimeter or frequency meter, can select according to the actual requirements.Generally correcting device 1 is multimeter, when the frequency signal value surpasses the specified measurement range of multimeter, changes the frequency of utilization meter into, completes large frequency signal test, calibration tasks.
Preferably; described the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 are relay switch; can be according to the concrete connection of correcting device 1 four port a1, a2, a3, a4; play the effect of selection and deploy switch lattice network, simultaneously the first program control multiplexer switch 201, the second program control multiplexer switch 202 are played isolation, protective effect.
During use, when measuring or calibrate tested device measuring end points electric current less than 1 ampere, voltage during less than 100V, the first switch 101 in switching network, second switch 102, the 3rd switch 103, the 4th switch 104 and the first program control multiplexer switch 201, the second program control multiplexer switch 202 all are in conducting state; When the electric current of measuring or calibrate tested device measuring end points when 1 ampere, voltage are between 100V～300V, the first switch 101, second switch 102, the 3rd switch 103 and the 4th switch 104 are in conducting state, and the first program control multiplexer switch 201, the second program control multiplexer switch 202 automatic cutouts are not worked, form another switching network, complete measurement, calibration tasks.
when for example measuring or calibrating the magnitude of voltage between tested equipment end points 1 and end points 128, if when using multimeter the 1st passage (also can use the 2nd passage), can be with the first switch 101 closures, the first program control multiplexer switch 201 is located closure at " ch0 ", at this moment just connect with tested equipment end points 1, while the 3rd switch 103 closures, the second program control multiplexer switch 202 is located closure at " ch127 ", connect with tested equipment end points 128 this moment, the switching network circuit is switched on, multimeter reads the magnitude of voltage between tested equipment end points 1 and end points 128, and should measure or calibration data is stored in corresponding test form and is shown, after all on off states are set to 0, complete once test.By the on off state in the deploy switch network, can test successively by other passage to tested equipment on test sequence, can feed back in the test form and show, generate the measurement data table.
When measurement or calibration current, resistance, identical with measurement or calibration voltage mode.
The utility model is for problems such as the test assignment of hyperchannel, multiparameter demand are many, a kind of hyperchannel calibrating installation is provided, this apparatus structure is simple, easy to use, can save test resource on the one hand, greatly reduce on the other hand testing cost, solved less and the contradiction that the equipment under test signal is more of long-standing test port.The utility model has not only been realized the self-checking function of automated calibration system effectively, by the cascade of switching system, can also realize the expansion of calibration system and reconfigure.
Claims (3)
1. hyperchannel calibrating installation, it is characterized in that, comprise correcting device [1], four ports [a1, a2, a3, a4] on correcting device [1] are connected with the first switch [101], second switch [102], the 3rd switch [103] and the 4th switch [104] respectively, described the first switch [101] be connected to the first program control multiplexer switch [201] after second switch [102] is connected, described the 3rd switch [103] be connected to the second program control multiplexer switch [202] after the 4th switch [104] is connected.
2. a kind of hyperchannel calibrating installation according to claim 1, is characterized in that, described correcting device [1] is multimeter or frequency meter.
3. a kind of hyperchannel calibrating installation according to claim 2, is characterized in that, described the first switch [101], second switch [102], the 3rd switch [103] and the 4th switch [104] are relay switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669257 CN202994875U (en) | 2012-12-07 | 2012-12-07 | A multi-channel calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669257 CN202994875U (en) | 2012-12-07 | 2012-12-07 | A multi-channel calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994875U true CN202994875U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220669257 Expired - Lifetime CN202994875U (en) | 2012-12-07 | 2012-12-07 | A multi-channel calibrating device |
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| CN (1) | CN202994875U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759234A (en) * | 2016-04-14 | 2016-07-13 | 中国人民解放军91663部队 | Four-channel output device suitable for multifunctional calibration source |
| CN108700618A (en) * | 2016-03-17 | 2018-10-23 | 德克萨斯仪器股份有限公司 | The crosstalk of multi-channel system is calibrated |
| CN109061266A (en) * | 2018-10-26 | 2018-12-21 | 桂林市华谊智测科技有限责任公司 | Multiplexing functions circuit board and digital multimeter for digital multimeter |
| CN110958062A (en) * | 2018-11-30 | 2020-04-03 | 南京长峰航天电子科技有限公司 | Radio frequency multichannel calibration system and method |
| TWI749978B (en) * | 2020-12-31 | 2021-12-11 | 致茂電子股份有限公司 | Multi-channel calibration method |
-
2012
- 2012-12-07 CN CN 201220669257 patent/CN202994875U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700618A (en) * | 2016-03-17 | 2018-10-23 | 德克萨斯仪器股份有限公司 | The crosstalk of multi-channel system is calibrated |
| CN108700618B (en) * | 2016-03-17 | 2021-10-26 | 德克萨斯仪器股份有限公司 | Crosstalk calibration for multi-channel systems |
| CN105759234A (en) * | 2016-04-14 | 2016-07-13 | 中国人民解放军91663部队 | Four-channel output device suitable for multifunctional calibration source |
| CN105759234B (en) * | 2016-04-14 | 2018-10-23 | 中国人民解放军91663部队 | Four-way output device suitable for multi-functional calibration source |
| CN109061266A (en) * | 2018-10-26 | 2018-12-21 | 桂林市华谊智测科技有限责任公司 | Multiplexing functions circuit board and digital multimeter for digital multimeter |
| CN110958062A (en) * | 2018-11-30 | 2020-04-03 | 南京长峰航天电子科技有限公司 | Radio frequency multichannel calibration system and method |
| CN110958062B (en) * | 2018-11-30 | 2022-05-03 | 南京长峰航天电子科技有限公司 | Radio frequency multichannel calibration system and method |
| TWI749978B (en) * | 2020-12-31 | 2021-12-11 | 致茂電子股份有限公司 | Multi-channel calibration method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |