CN101072021A - Multi-channel switching card - Google Patents
Multi-channel switching card Download PDFInfo
- Publication number
- CN101072021A CN101072021A CN 200610132471 CN200610132471A CN101072021A CN 101072021 A CN101072021 A CN 101072021A CN 200610132471 CN200610132471 CN 200610132471 CN 200610132471 A CN200610132471 A CN 200610132471A CN 101072021 A CN101072021 A CN 101072021A
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- Prior art keywords
- channel switching
- switching card
- card
- connects
- port multiplier
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The switch card includes multiplexer with function of gate control of multi inputs and single output, and control panel for controlling selected number of route. One end of the multiplexer is connected to the input of the multiple sensors, and the other end through single route is connected to instrument. Digitron display, selection control key and manual selection switch are setup on the control panel. Features are: high applicability, low cost, high stability, easy of installation, and simple operation.
Description
[technical field]
The present invention relates to a kind of switch switching device shifter, refers in particular to a kind of multichannel switching device shifter that is used in the sensor production linear flow journey.
[background technology]
In the flow process of sensor production line, important operation is arranged one, do high low temperature test exactly, at experimental session, need regularly measure the output signal of each experiment sensor, the output contrast with under the normal temperature sees if there is saltus step.
A high-low temperature chamber generally can be placed 70～80 undersized transducers, in order to save cost, can not join a table for each transducer usually, but tens shared tables of transducer come which transducer of gating to be connected with table by switch.Be to assemble out a mechanical switch at first, can satisfy the sensor production of general precision requirement substantially with plank and button; But because wiring strings together mutually, signal of sensor is existed disturb, can not satisfy the required precision of C3 level transducer.
2700 tables of existing Keithley are a high-precision meters, simultaneously, in order to connect the output of multisensor, 2700 tables connect a wiring card, can connect 20 transducers simultaneously at most, but one 2700 table can only be joined a wiring card at most, we can see, a high-low temperature chamber will be joined 4 2700 tables, and is comparatively complicated and its cost is higher.
Therefore, provide the simulation multi-channel switching card that is used for sensor production linear flow journey that a kind of cost is low, precision is high real for necessary.
[summary of the invention]
The purpose of this invention is to provide the simulation multi-channel switching card that is used for sensor production linear flow journey that a kind of cost is low, precision is high.
For realizing the object of the invention, provide following technical scheme:
A kind of multi-channel switching card is provided, and it comprises having the Port Multiplier that singly goes out the gating controlled function more, and the control panel of the selected way of control, and this Port Multiplier one end connects the multiple sensor input, and other end single channel connects instrument.This control panel is provided with the charactron demonstration and selects operating key, artificial selection switch.
This Port Multiplier can adopt different channel selector selection schemes.For example adopt the secondary relay, this secondary relay connects main control chip, thereby main control chip is controlled this secondary relay realization variable connector selection.
This Port Multiplier can also adopt analog switch to select to realize variable connector, and this analog switch connects main control chip, and every road transducer incoming line connects a switch by main control chip control.
Simultaneously, this multi-channel switching card also can insert computer by serial ports, realizes automatic data collection.
This multi-channel switching card adopts stainless steel to do shell, and is solid durable and can anti-electromagnetic interference.
Be compared with the prior art, the present invention has the following advantages:
Multi-channel switching card applicability of the present invention is strong, the Displaying Meter of adaptive all size; Support a large amount of inputs, have more 1～2 times input access quantity than the special-purpose access card of instrument manufacturer production; Cost is low; Stability is high, and temperature stability is good, owing to adopt stainless steel to do shell, anti-electromagnetic interference is strong; Easy for installation, fully take into account the setting of high-low temperature chamber line outlet, wire to terminal is convenient; Simple to operate, the workman only needs to show the selector channel by button and charactron.
[description of drawings]
Fig. 1 is the schematic appearance of multi-channel switching card of the present invention;
Fig. 2 is the structural framing schematic diagram of multi-channel switching card of the present invention;
Fig. 3 is the structural representation of the embodiment one of multi-channel switching card of the present invention;
Fig. 4 is the structural representation of the embodiment two of multi-channel switching card of the present invention;
Fig. 5 is the structural representation that multi-channel switching card of the present invention inserts computer.
[embodiment]
See also Fig. 1,2, this multi-channel switching card is designed to the profile of a box-type, and it comprises having the Port Multiplier that singly goes out the gating controlled function more, and the control panel of the selected way of control, this Port Multiplier one end connects the multiple sensor input, and other end single channel connects instrument.This control panel is provided with the charactron demonstration and selects operating key, artificial selection switch.
See also Fig. 3, this Port Multiplier adopts secondary relay switch that elects, this secondary relay connects main control chip, thereby main control chip is controlled this secondary relay and is realized the variable connector selection, the transducer incoming line is made ground floor through the one-level relay array earlier and is selected, input to the secondary relay again and make second layer selection, finally select and come as output.
See also Fig. 4, this Port Multiplier can also adopt analog switch to select to realize variable connector, this analog switch connects main control chip, and every road transducer incoming line connects a switch by main control chip control, and this switching circuit connects relay again and selects to select one tunnel output.
Simultaneously, this multi-channel switching card also can insert computer by serial ports, realizes automatic data collection.As shown in Figure 5, the analog signal of the switch arrays of switch card inserts the PC computer by the instrument serial ports, PC signal also pass to the switch arrays of switch card with the decoded signal form by single-chip microcomputer.
The above only is a preferable embodiment of the present invention, and protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within protection range of the present invention based on non-material change on the technical solution of the present invention.
Claims (5)
1, a kind of multi-channel switching card is characterized in that, it comprises having the Port Multiplier that singly goes out the gating controlled function more, and the control panel of the selected way of control, and this Port Multiplier one end connects the multiple sensor input, and other end single channel connects instrument.
2, multi-channel switching card as claimed in claim 1 is characterized in that, this Port Multiplier adopts the secondary relay to select to realize variable connector, and this secondary relay connects main control chip.
3, multi-channel switching card as claimed in claim 1 is characterized in that, this Port Multiplier adopts analog switch to select to realize variable connector, and this analog switch connects main control chip.
4, multi-channel switching card as claimed in claim 1 is characterized in that, this control panel is provided with the charactron demonstration and selects operating key.
5, multi-channel switching card as claimed in claim 1 is characterized in that, this switch card connects computer by serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610132471 CN101072021A (en) | 2006-12-30 | 2006-12-30 | Multi-channel switching card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610132471 CN101072021A (en) | 2006-12-30 | 2006-12-30 | Multi-channel switching card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101072021A true CN101072021A (en) | 2007-11-14 |
Family
ID=38899045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610132471 Pending CN101072021A (en) | 2006-12-30 | 2006-12-30 | Multi-channel switching card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101072021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714025A (en) * | 2013-12-31 | 2014-04-09 | 厦门市美亚柏科信息股份有限公司 | Interface control equipment, data acquisition system and equipment connection control method |
| CN104978890A (en) * | 2015-07-03 | 2015-10-14 | 中国电子科技集团公司第四十一研究所 | Test interface-reduced teaching experiment circuit |
-
2006
- 2006-12-30 CN CN 200610132471 patent/CN101072021A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714025A (en) * | 2013-12-31 | 2014-04-09 | 厦门市美亚柏科信息股份有限公司 | Interface control equipment, data acquisition system and equipment connection control method |
| CN104978890A (en) * | 2015-07-03 | 2015-10-14 | 中国电子科技集团公司第四十一研究所 | Test interface-reduced teaching experiment circuit |
| CN104978890B (en) * | 2015-07-03 | 2018-07-24 | 中国电子科技集团公司第四十一研究所 | A kind of teaching experiment circuit reducing test interface |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20071114 |