CN207588834U - Weighing sensor control circuit - Google Patents
Weighing sensor control circuit Download PDFInfo
- Publication number
- CN207588834U CN207588834U CN201721208221.3U CN201721208221U CN207588834U CN 207588834 U CN207588834 U CN 207588834U CN 201721208221 U CN201721208221 U CN 201721208221U CN 207588834 U CN207588834 U CN 207588834U
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- connector
- handling equipment
- signal handling
- weighing sensor
- signal
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Abstract
The utility model provides a kind of weighing sensor control circuit, including analog switch, it connects connector and signal handling equipment, for controlling the connection relation between the signal wire between the connector and the signal handling equipment, and the analog switch is controlled to connect the connection relation between the connector and the signal wire of the signal handling equipment by control module, and the control of button or menu option realization to the control module is passed through by staff, it is simple in structure, it is of low cost, it is easy to operate.
Description
Technical field
The utility model is related to a kind of weighing sensor control circuits, relate generally to a kind of weighing sensor output interface
Four lines, six line traffic control structure.
Background technology
Weighing sensor is generally divided into four-wire system and six line systems according to the mode of connection.Both modes of connection respectively have excellent lack
Point：In four-wire system connection, as shown in Figure 1a, weighing sensor to instrument without particular/special requirement, use it is more convenient, but when electricity
When cable is longer, the interference effect that is easily brought by factors such as environmental temperature fluctuations, so as to influence the metering performance of electronic scale；
In six line connections, as shown in Figure 1 b, weighing sensor requires the matched instrument used to have feed back input interface, such as anti-
Present+and feedback-, use scope has certain limitation, but is not susceptible to the influence that the factors such as environmental temperature fluctuation are brought, in essence
With certain advantage when close measurement and long range measurements.
When installing weighing sensor, the interface of other equipment may be four lines or six lines, in order to expand weighing and sensing
The application scenario of device, for example, six line weighing sensors connect four-wire system external meters when, need the excitation in Fig. 1 b+
With feedback+short circuit, excitation-and feedback-short circuit, then it is connected with four-wire system equipment, this needs operation bidirectional, at present generally by artificial complete
Into；Conversely, when four-wire system weighing sensor is connected six line instrument, need setting feedback+and feedback-, then set up with six lines
It is standby to be connected.
CN106130539 discloses a kind of four lines, the six line fast switching circuit of sensor output interface, utilizes resistance R1
The conversion of four-wire system sensor and six line sensors is realized with R2, when resistance R1 and R2 are not welded, sensor it is defeated
Outgoing interface is six line systems, and when resistance R1 and R2 weld upper 0 Ohmic resistance, the positive EX+ of power supply and the positive S+ short circuits of feedback, power supply are born
EX- and the negative S- short circuits of feedback, so as to which the output interface of sensor be made to be four-wire system.But the conversion of this scheme can only install
It is carried out at the same time when weighing sensor, once completing the setting between R1, R2 and 0 Ohmic resistance, then can not change again.Moreover,
It has pertained only to how six line sensors realize four-wire system in this scheme, has been not directed to how four-wire system sensor realizes six line systems,
So as to connect the external equipment of six lines.
Invention content
The purpose of this utility model is to provide a kind of weighing sensor control circuit, enables to staff flexible
Select four-wire system weighing sensor or six line weighing sensors so that it is simple in structure, it is easy to operate, it is of low cost.
A kind of weighing sensor control circuit including analog switch, connects connector and signal handling equipment, for controlling
The connection relation between signal wire between connector processed and the processing equipment.
Analog switch in the utility model is operated by staff, flexibly controls four-wire system weighing sensor or six
Line weighing sensor is connect by connector with signal handling equipment, easy to operate, of low cost, substantially increases work effect
Rate.
Preferably, connector includes 6 terminals.
Preferably, signal handling equipment includes 6 or 4 interfaces.When signal handling equipment includes 6 interfaces, even
2 analog switches are set between fitting and the signal handling equipment, for control the terminal of connector encourage+, feedback+, it is sharp
Encourage-and feedback-and the excitation of the interface of signal handling equipment+, feedback+, excitation-and feed back-between connection relation；Signal processing
When equipment includes 4 interfaces, 2 analog switches are set between connector and signal handling equipment, for controlling connector
Terminal excitation+, feedback+, excitation-and feedback-with the excitation+of the interface of signal handling equipment and encourage-between connection relation.
Preferably, connector terminal output+and output-difference connection signal processing equipment interface output+with it is defeated
Go out-.
The utility model utilizes analog switch, realizes above-mentioned flexible control four-wire system weighing sensor or six line systems are weighed
The function that sensor is connect by connector with signal handling equipment so that four-wire system weighing sensor or six line weighing and sensings
Device can be connected to signal handling equipment.
Preferably, when signal handling equipment includes 6 interfaces, 2 lists are set between connector and signal handling equipment
Double-pole double throw switch；When signal handling equipment includes 4 interfaces, 2 hilted broadsword lists are set between connector and signal handling equipment
Throw switch.
The single-pole double-throw switch (SPDT) or single-pole single-throw switch (SPST) that the utility model uses are of low cost, simple in structure.
Preferably, weighing sensor control circuit further includes control module, control analog switch connection connector and letter
Connection relation between the signal wire of number processing equipment.
The utility model controls analog switch using control module, so as to fulfill the letter to connector and signal handling equipment
The control of connection relation between number line, it is simple and convenient, using staff to the publication order of control module, it can be achieved that work
The flexible selection of connection relation of the personnel between connector and the signal wire of signal handling equipment.
The utility model also provides a kind of instrument, including above-mentioned weighing sensor control circuit.
Instrument in the utility model includes weighing sensor control circuit so that four-wire system weighing sensor or six line systems
Weighing sensor can connect this instrument, expand the use scope of instrument.
In conclusion the utility model to control the terminal and signal handling equipment of connector respectively using analog switch
Interface between connection relation, and the control can pass through button or menu option by staff and realize, simple in structure, cost
Cheap, easy to operate, can flexibly arrange in pairs or groups weighing sensor and signal handling equipment.
Description of the drawings
The above and other feature of the utility model, property and advantage will be by with reference to the accompanying drawings and examples
It describing and becomes apparent, reference numeral identical in the accompanying drawings always shows identical feature, wherein：
Fig. 1 a show the schematic diagram of the four-wire system connection of weighing sensor, and Fig. 1 b show six line systems of weighing sensor
The schematic diagram of connection.
Fig. 2 shows the weighing sensor of the utility model and the connection structure diagrams of six line signal processing equipment.
Fig. 3 shows the weighing sensor of the utility model and the connection structure diagram of four-wire system signal handling equipment.
Reference numeral：
201,301- connectors
202,302- analog switches
2021,2022,2023- be respectively the first end, second end and third end of analog switch 201
3021,3022- be respectively the first end and second end of analog switch 302
203,303- signal handling equipments
The terminal of A, B, C, D, E.F- connector 201
The interface of a, b, c, d, e, f- signal handling equipment
Specific embodiment
For the above-mentioned purpose of the utility model, feature and advantage can be clearer and more comprehensible, below in conjunction with attached drawing to this practicality
Novel specific embodiment elaborates.
The embodiment of the utility model is described now with detailed reference to attached drawing.Now with detailed reference to the excellent of the utility model
Embodiment is selected, its example is shown in the drawings.In the case of any possible, identical label will be used in all the appended drawings
Represent the same or similar part.In addition, although the term used in the utility model is selected from public term
It selects, but some terms mentioned in the utility model specification may be applicant to be selected by his or her judgement
, detailed meanings illustrate in the relevant portion of description herein.In addition, it is desirable that not only by used practical art
Language, and the meaning contained by each term is also to understand the utility model.
Embodiment one：
Fig. 2 shows the weighing sensor of the utility model and the connection structure diagrams of six line signal processing equipment.
As shown in Fig. 2, six interface a~f that connector 201 includes six terminal A~F and signal handling equipment 203 are equal
Respectively corresponding excitation+, feedback+, output+, output-, excitation-and feedback-, terminal C and D are directly connected to signal processing and set respectively
Standby 203 interface c and d, between terminal A and B, sets an analog switch 202 respectively between terminal E and F.Work as signal processing
When equipment 203 is six lines, analog switch 202 is set so that connection signal processing equipment 203 connects respectively by terminal A, B, E, F
Mouth a, b, e and f；When signal handling equipment 203 be four-wire system when, analog switch 202 so that terminal B and E open circuit, only terminal A and
The interface a and f of F connection signals processing equipment 203.
In another embodiment, analog switch 202 is single-pole double-throw switch (SPDT), and it includes first end 2021, second ends 2022
With third end 2023.When first end 2021 is contacted with second end 2022, the end A of connector 201 is connected to signal handling equipment
203 interface a and b, the terminal B of connector 201 are disconnected；Meanwhile the terminal F of connector 201 is connected to signal handling equipment 203
Interface e and f, the terminal E of connector 201 disconnects, that is, realizes that four-wire system weighing sensor is connected to six by connector 201
Line signal processing equipment 203.
When first end 2021 is contacted with second end 2023, terminal A, B, E and F of connector 201 are respectively connected to signal
Interface a, b, e and f of processing equipment 203 realize that six line weighing sensors are connected to six line signals by connector 201
Processing equipment 203.
In conclusion utilize analog switch 202 so that can flexibly control the terminal A, B, E and F and signal of connector 201
The connection relation of a, b, e and the f of 203 interface of processing equipment, so as to fulfill four-wire system or six line weighing sensors and six line systems
The connection of signal handling equipment 203.
In addition, the first end 2021 of single-pole double-throw switch (SPDT), second end 2022 and the connection relation at third end 2023 are by controlling
Module controls, and can be realized by staff by button or menu selection, so that in practical application, staff can
It is simple in structure flexibly to select four-wire system weighing sensor or six line weighing sensors, it is easy to operate, it is of low cost.
Embodiment two：
Fig. 3 shows the weighing sensor of the utility model and the connection structure diagram of four-wire system signal handling equipment 303.
As shown in figure 3, connector 301 include six terminal A~F respectively corresponding excitation+, feedback+, output+, output-, swash
Encourage-and feedback-, signal handling equipment 303 include 4 interfaces a, c, d and f respectively corresponding excitation+, output+, output-, excitation-,
Terminal C and D are directly connected to the interface c and d of signal handling equipment 303 respectively, divide between terminal A and B, between terminal E and F
One analog switch 302 is not set.When signal handling equipment 303 is four-wire system, analog switch 302 is set so that terminal A and B
Short circuit, E and F short circuits, then the interface a and f of connection signal processing equipment 303 respectively.
In another embodiment, analog switch 302 is single-pole single-throw switch (SPST), and it includes first end 3021 and second ends
3022.When first end 3021 is contacted with second end 3022, terminal A and the B short circuit of connector 301, terminal E and F short circuit, then
The interface a and f of signal handling equipment 303 are respectively connected to, that is, realizes that six line weighing sensors are connected at four-wire system signal
Manage equipment 303.
When first end 3021 and second end 3022 disconnect, the terminal A and F of connector 301 are respectively connected to signal processing
The interface a and f of equipment 303, meanwhile, terminal B and the E open circuit of connector 301 realize that four-wire system weighing sensor is connected to four
Line signal processing equipment 303.
In conclusion utilize analog switch 302 so that can flexibly control the terminal A, B, E and F and signal of connector 301
The connection relation of a and f of 303 interface of processing equipment, so as to fulfill four-wire system or six line weighing sensors and four-wire system signal
The connection of processing equipment 303.
In addition, the first end 3021 of analog switch 302 and the connection relation of second end 3022 are controlled, and can by control module
It is realized by staff by button or menu option, so that in practical application, staff can flexibly select four
Line weighing sensor or six line weighing sensors, it is simple in structure, it is easy to operate, it is of low cost.
Further notably, except single-pole double-throw switch (SPDT) or single-pole single-throw switch (SPST), above-mentioned analog switch can also be by
Other kinds of switch is realized, can equally realize the purpose of this utility model, it includes in the scope of protection of the utility model
It is interior.
In conclusion to control respectively between the terminal of connector and the interface of signal handling equipment using analog switch
Connection relation, and the control can pass through button or menu option by staff and realize, simple in structure, of low cost, operation
Convenient, can flexibly arrange in pairs or groups weighing sensor and signal handling equipment.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of the principle and essence without departing substantially from the utility model
Change, but these change and modification each fall within the scope of protection of the utility model.
Claims (8)
1. a kind of weighing sensor control circuit, which is characterized in that including analog switch, connect connector and signal processing is set
It is standby, for controlling the connection relation between each terminal of the connector and each interface of the signal handling equipment.
2. weighing sensor control circuit as described in claim 1, which is characterized in that the connector includes 6 terminals.
3. weighing sensor control circuit as described in claim 1, which is characterized in that the signal handling equipment includes 6
Or 4 interfaces.
4. weighing sensor control circuit as claimed in claim 3, which is characterized in that the signal handling equipment includes 6
During interface, 2 analog switches are set between the connector and the signal handling equipment, for controlling the connector
Terminal excitation+, feedback+, excitation-and feedback-with the excitation of the interface of the signal handling equipment+, feedback+, excitation-and feedback-
Between connection relation；When the signal handling equipment includes 4 interfaces, the connector and the signal handling equipment it
Between 2 analog switches are set, for control the terminal of the connector encourage+, feedback+, excitation-and feedback-and signal
Processing equipment interface excitation+and excitation-between connection relation.
5. weighing sensor control circuit as claimed in claim 3, which is characterized in that the signal handling equipment includes 6
During interface, 2 single-pole double-throw switch (SPDT)s are set between the connector and the signal handling equipment；The signal handling equipment
During comprising 4 interfaces, 2 single-pole single-throw switch (SPST)s are set between the connector and the signal handling equipment.
6. weighing sensor control circuit as claimed in claim 2 or claim 3, which is characterized in that the terminal output of the connector+
Exported with the interface for export-connecting the signal handling equipment respectively+and output-.
7. weighing sensor control circuit as described in claim 1, which is characterized in that control module controls the analog switch
Connect the connection relation between the signal wire of the connector and the signal handling equipment.
8. a kind of instrument, which is characterized in that control electricity including the weighing sensor described in any one of the claims 1~7
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208221.3U CN207588834U (en) | 2017-09-15 | 2017-09-15 | Weighing sensor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208221.3U CN207588834U (en) | 2017-09-15 | 2017-09-15 | Weighing sensor control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588834U true CN207588834U (en) | 2018-07-06 |
Family
ID=62727824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721208221.3U Active CN207588834U (en) | 2017-09-15 | 2017-09-15 | Weighing sensor control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510615A (en) * | 2017-09-15 | 2019-03-22 | 梅特勒-托利多(常州)测量技术有限公司 | Weighing sensor control circuit |
-
2017
- 2017-09-15 CN CN201721208221.3U patent/CN207588834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510615A (en) * | 2017-09-15 | 2019-03-22 | 梅特勒-托利多(常州)测量技术有限公司 | Weighing sensor control circuit |
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