CN203929146U - Transmitter - Google Patents
Transmitter Download PDFInfo
- Publication number
- CN203929146U CN203929146U CN201420289111.4U CN201420289111U CN203929146U CN 203929146 U CN203929146 U CN 203929146U CN 201420289111 U CN201420289111 U CN 201420289111U CN 203929146 U CN203929146 U CN 203929146U
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- transmitter
- detection circuit
- circuit
- tube self
- sensor
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Abstract
The application provides a kind of transmitter for coriolis flowmeter.This transmitter comprises: sample circuit, and for the sensor signal obtaining by sensor sense vibrations flowtube is sampled.Wherein, transmitter also comprises: dismountable sensor tube self-detection circuit, be installed on transmitter and the in the situation that of electrically accessed transmitter at sensor tube self-detection circuit, sensor tube self-detection circuit determines in vibrating flow pipe, whether there is failure condition based on sensor signal.
Description
Technical field
The utility model relates to a kind of transmitter for coriolis flowmeter.
Background technology
It is the converter that the sensor signal obtaining by sensor sense vibrations flowtube is changed into the signal that can be identified by controller for the transmitter of coriolis flowmeter.In the process of sensor signal being processed at transmitter, sometimes need vibrating flow pipe to detect, determine and in vibrating flow pipe, whether have failure condition (for example tube wall of vibrating flow blockage, vibrating flow pipe have damaged etc.), thereby guarantee the correctness of sensor signal.Be called as sensor tube self-detection circuit for the circuit that vibrating flow pipe is detected.But, not always need for the detection of vibrating flow pipe, for example, in the case of just having changed new vibrating flow pipe, can not carry out this kind of detection, and after vibrating flow pipe has been used a period of time, may need to carry out this kind of detection.
But, in existing transmitter, sensor tube self-detection circuit is fixedly mounted on transmitter conventionally, and this causes whenever all will carrying out the detection to vibrating flow pipe, thereby user can not select flexibly, and may cause unnecessary energy resource consumption.
Utility model content
Consider the problems referred to above, the purpose of this utility model is to provide a kind of transmitter for coriolis flowmeter.Thereby whether user can select vibrating flow pipe to be detected flexibly.
An aspect of the present utility model provides a kind of transmitter for coriolis flowmeter, and this transmitter comprises sample circuit, and this sample circuit is sampled to the sensor signal obtaining by sensor sense vibrations flowtube.Wherein, transmitter also comprises: dismountable sensor tube self-detection circuit, be installed on this transmitter and the in the situation that of electrically accessed this transmitter at this sensor tube self-detection circuit, this sensor tube self-detection circuit determines in vibrating flow pipe, whether there is failure condition based on sensor signal.
According to an embodiment, transmitter also comprises place in circuit, and place in circuit is for electrically accessing transmitter by this sensor tube self-detection circuit, wherein, place in circuit comprises: whether installation and measuring unit, be installed on transmitter for detection of sensor tube self-detection circuit; And access unit, in the time that installation and measuring unit inspection is installed on transmitter to sensor tube self-detection circuit, sensor tube self-detection circuit is electrically accessed to transmitter.
According to another embodiment, transmitter also comprises hand switch, and this hand switch, for after sensor tube self-detection circuit is installed on transmitter, manually electrically accesses transmitter by sensor tube self-detection circuit.
According to another embodiment, sensor tube self-detection circuit comprises: sensor signal detection unit, for sensor signal is carried out to sensing, and determine in vibrating flow pipe, whether there is failure condition based on sensor signal; Signal transmission unit, for i) not determining in the time that vibrating flow pipe does not exist failure condition and send sensor signal to sample circuit in sensor signal detection unit, and ii) determine in sensor signal detection unit and there is failure condition in vibrating flow pipe time, stop transmitting sensor signal; And alarm unit, in the time that existing failure condition, sends vibrating flow pipe alerting signal for determining in sensor signal detection unit.
According to another embodiment, sensor is embedded in transmitter.
According to another embodiment, sensor separates with transmitter.
According to another embodiment, sensor tube self-detection circuit is modularized circuit.
Application the utility model, because sensor tube self-detection circuit is wherein detachable, therefore user can carry out to select flexibly whether to carry out the detection to vibrating flow pipe as required.
Brief description of the drawings
With reference to the explanation to embodiment of the present utility model below in conjunction with accompanying drawing, can understand more easily above and other objects, features and advantages of the present utility model.In the accompanying drawings, identical or corresponding technical characterictic or parts will adopt identical or corresponding Reference numeral to represent.Needn't go out according to scale in the accompanying drawings size and the relative position of unit.
Fig. 1 is the block diagram schematically showing according to the structure of the transmitter for coriolis flowmeter of the utility model embodiment.
Fig. 2 is the block diagram schematically showing according to the structure of the transmitter for coriolis flowmeter of another embodiment of the utility model.
Fig. 3 is the schematic diagram illustrating according to the concrete structure of the place in circuit of the utility model embodiment.
Fig. 4 is the block diagram illustrating according to the structure of an example of the sensor tube self-detection circuit of the utility model embodiment.
Fig. 5 is the block diagram illustrating according to the structure of the transmitter of the utility model embodiment concrete example.
Fig. 6 is schematically illustrated according to the schematic flow sheet that sensor signal is become the method for sending in transmitter of the application's embodiment.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.It should be noted that for purposes of clarity, in accompanying drawing and explanation, omitted with the utility model irrelevant, expression and the description of parts well known by persons skilled in the art and processing.
Fig. 1 is the block diagram schematically showing according to the structure of the transmitter 100 for coriolis flowmeter of the utility model embodiment.Below transmitter 100 is elaborated.
As shown in fig. 1, transmitter 100 comprises sample circuit 101.Sample circuit 101 is for the sensor signal obtaining by sensor sense vibrations flowtube is sampled, to obtain sampled signal.Sensor can be the sensor of any type, the liquid flow sensor of such as sensed flow etc.Although not shown, transmitter 100 can also comprise treatment circuit, output circuit etc.Treatment circuit can process to obtain output signal to the sampled signal obtaining by sample circuit 101 samplings.Output signal is the controller that reaches follow-up or the signal of the desired standard of measurement instrument, reaches the signal of the requirement of controller or measurement instrument.Output circuit can be exported to output signal follow-up controller or measurement instrument.In embodiment of the present utility model, transmitter 100 is equipped with sample circuit 101 (connecting with solid line in Fig. 1), treatment circuit, output circuit etc. regularly.
Different from sample circuit 101, treatment circuit, output circuit etc., sensor tube self-detection circuit 102 is dismountable (dot in Fig. 1 sensor tube self-detection circuit 102 is installed to transmitter 100) for transmitter 100.Be installed on transmitter 100 and the in the situation that of electrically accessed transmitter at sensor tube self-detection circuit 102, sensor tube self-detection circuit 102 determines in described vibrating flow pipe whether have failure condition based on described sensor signal.Because sensor tube self-detection circuit 102 is dismountable, therefore user can select neatly for whether detecting vibrating flow pipe.In the case of just having changed new vibrating flow pipe, user can select vibrating flow pipe not to be detected, so can sensor tube self-detection circuit 102 be installed on transmitter 100.And after vibrating flow pipe has been used a period of time, user need to detect the in the situation that of whether there is failure condition in vibrating flow pipe, user can be installed to sensor tube self-detection circuit 102 on transmitter 100, and sensor tube self-detection circuit 102 is electrically linked in transmitter 100, with by sensor signal being detected to whether have failure condition in vibrating flow pipe.
Fig. 2 is the block diagram illustrating according to the structure of the transmitter 200 for coriolis flowmeter of another embodiment of the utility model.As shown in Figure 2, except sample circuit 101 and sensor tube self-detection circuit 102, transmitter 200 also comprises place in circuit 103.Place in circuit 103 is for electrically accessing transmitter by sensor tube self-detection circuit 102.After sensor tube self-detection circuit 102 is mounted or is assembled on transmitter 200, place in circuit 103 is electrically linked into sensor tube self-detection circuit 102 in transmitter 200, so that sensor tube self-detection circuit 102 carries out work with together with other interlock circuit in transmitter 200.
Fig. 3 is the schematic diagram that the concrete structure of place in circuit 103 is shown.Place in circuit 103 can comprise installation and measuring unit 1031 and access unit 1032.Whether installation and measuring unit 1031 can be installed on transmitter 200 for detection of sensor tube self-detection circuit 102.Access unit 1032 can be when detecting that in installation and measuring unit 1031 sensor tube self-detection circuit 102 is installed on transmitter 200, sensor tube self-detection circuit 102 is linked in transmitter 200, electrically be linked in transmitter 200 by sensor tube self-detection circuit 102, so that sensor tube self-detection circuit 102 carries out work with together with other interlock circuit in transmitter 200.By the place in circuit 103 of Fig. 3, can realize for the whether mounted automatic detection of sensor tube self-detection circuit 102, and can automatically it electrically be accessed to transmitter 200.
Certainly, the transmitter 100 shown in Fig. 1 can also comprise hand switch.Hand switch can, for after being installed on transmitter 100 at sensor tube self-detection circuit 102, manually electrically access transmitter 100 by sensor tube self-detection circuit 102
Fig. 4 is the block diagram illustrating according to the structure of an example of the sensor tube self-detection circuit 102 of the utility model embodiment.As shown in Figure 4, sensor tube self-detection circuit 102 comprises sensor signal detection unit 1021, signal transmission unit 1022 and alarm unit 1023.Below each unit is elaborated.
Sensor signal detection unit 1021 is for the sensor signal obtaining by sensor sensing is detected, and determines in vibrating flow pipe, whether there is failure condition based on sensor signal.Particularly, in the time that vibrating flow pipe does not exist failure condition, the electric current of sensor signal is stable.And in the time that vibrating flow pipe is damaged or be plugged, the electric current of sensor can change.Therefore, sensor signal detection unit 1021 detects by the electric current to sensor signal, can determine whether sensor signal exists failure condition.
Signal transmission unit 1022 is for i) determining in sensor signal detection unit 1021 and sensor signal is sent to sample circuit 101 in the time that vibrating flow pipe does not exist failure condition, and ii) determine in sensor signal detection unit 1021 and there is failure condition in vibrating flow pipe time, stop transmitting sensor signal.Particularly, more stable and when abnormal, illustrate in vibrating flow pipe, not have failure condition in sensor signal, therefore the sensor signal of sensor sensing is correct.In this case, signal transmission unit 1022 in statu quo sends sensor signal to sample circuit.And in the time that sensor signal is abnormal, illustrate in vibrating flow pipe, to have failure condition, therefore the sensor signal of sensor sensing also may be incorrect.In this case, signal transmission unit 1022 stops transmitting sensor signal, thereby can prevent wrong signal to transmit.
Alarm unit 1023 sends alerting signal for determining in sensor signal detection unit 1021 in the time that vibrating flow pipe exists failure condition.Particularly, in the time that sensor signal detection unit 1021 detects that sensor signal is abnormal, alarm unit 1023 is reported to the police with abnormal to user notification sensor signal, user receives after this notice, can take appropriate measures, for example, vibrating flow pipe placed under repair or change vibrating flow pipe etc.Can take existing any type of alarm to report to the police, for example, change by the color that LED light is shown, the number of the LED light of lighting by change etc.
In above embodiment, sensor can separate with transmitter, thereby sensor and transmitter form two independently devices.Certainly, sensor also can be embedded in transmitter, thereby sensor and transmitter form integrated apparatus.
In addition, in above embodiment, sensor tube self-detection circuit can be modularized circuit.
A concrete example of transmitter is described below.Fig. 5 is the block diagram illustrating according to the structure of a concrete example of the transmitter 500 of the utility model embodiment.As shown in Figure 5, in this example, sensor is embedded in transmitter, thereby forms integrated transmitter device.Below this example is specifically described.
Driving circuit 507 for example, drives the interlock circuit in transmitter (sensor 506 and sensor tube self-detection circuit 504).Left and right two vibrating flow pipes of sensor 506 are exported respectively the sensor signal LPO OUT and the RPO OUT that are obtained by sensor 506 sensings.Sample circuit 501 is sampled to sensor signal LPO OUT and RPO OUT, thereby obtains sampled signal.Sample circuit 501 can be specifically signal codec device AK4552.Treatment circuit is realized by CPU (CPU (central processing unit)) 502 chips, and the model of CPU502 chip can be the BF533 of AnalogDevice company, can certainly use CPU or the DSP of other model.CPU502 processes to obtain output signal to the sampled signal obtaining by sample circuit 501 samplings, and CPU502 can also control interlock circuits such as sample circuit 501, sensor tube self-detection circuit 504 and output circuits 503 in addition.Output signal is exported to follow-up controller or measurement instrument by output circuit 503.In Fig. 5, show with dot-and-dash line the place in circuit 505 of realizing with hand switch S1, S2.In transmitter 500, sample circuit 501, CPU502, output circuit 503, place in circuit 505, sensor 506 and driving circuit 507 can all be fixedly fitted in the mainboard (not shown) of transmitter and electrical connection mutually.Can on the mainboard of transmitter, reserve a connector (not shown) and carry out assembly sensor pipe self-detection circuit 504.
In Fig. 5, draw dismountable sensor tube self-detection circuit 504 with dotted line.After sensor tube self-detection circuit 505 is mounted on connector, user can manually operate manual switch S 1, S2 is electrically linked into sensor tube self-detection circuit 504 in transmitter 500., user only need to be allocated to respectively 1 and 3 position from 2 and 4 position manual switch S 1 and S2, just sensor tube self-detection circuit 504 electrically can be linked in transmitter 500.And in the time there is no assembly sensor pipe self-detection circuit 504, make hand switch S1 and S2 in 2 and 4 position.
Connector reserved on mainboard can be the connector of 10 pins, and sensor tube self-detection circuit 504 is electrically linked in transmitter 500, only needs 9 signal wires wherein to realize.This makes the assembling of sensor tube self-detection circuit and accesses very simple.
Fig. 6 is schematically illustrated according to the schematic flow sheet that at the transmitter for coriolis flowmeter, sensor signal is become the method for sending of the application's embodiment.This transmitter can be the described transmitter of each embodiment according to the application.
The method comprising the steps of S602: the described sensor signal obtaining by sensor sense vibrations flowtube is sampled, to obtain sampled signal.Wherein, be installed on transmitter and the in the situation that of electrically accessed transmitter at sensor tube self-detection circuit, carry out step S605 below: sensor tube self-detection circuit determines in vibrating flow pipe, whether there is failure condition based on sensor signal.
Determine whether sensor tube self-detection circuit is installed on transmitter and the step S601 that electrically accessed transmitter can complete automatically by the circuit unit in transmitter.
In addition in the situation that sensor tube self-detection circuit is not installed on transmitter and electrically access on transmitter, at step S602, sensor signal is sampled, to obtain sampled signal.At step S603, sampled signal is processed to obtain output signal.And at step S604, the output signal of acquisition is exported.
Sensor tube self-detection circuit is electrically accessed to transmitter can be comprised the following steps: whether detecting sensor pipe self-detection circuit is installed on transmitter; And in the time detecting that sensor tube self-detection circuit is installed on transmitter, sensor tube self-detection circuit is electrically accessed to transmitter.
Selectively, sensor tube self-detection circuit is electrically accessed to transmitter can be comprised the following steps: after sensor tube self-detection circuit is installed on transmitter, manually sensor tube self-detection circuit is electrically accessed to transmitter by hand switch.
Application becomes to sensor signal the method for sending according to embodiment's of the present utility model in transmitter, and user can carry out to select flexibly whether to carry out the detection to vibrating flow pipe as required.
In instructions above, with reference to specific embodiment, the utility model is described.But those of ordinary skill in the art's understanding can be carried out various amendments and change under the prerequisite that does not depart from the scope of the present utility model limiting as claims.
Claims (7)
1. the transmitter for coriolis flowmeter (100), described transmitter (100) comprises sample circuit (101), and described sample circuit (101) is sampled to the sensor signal obtaining by sensor sense vibrations flowtube;
It is characterized in that, described transmitter (100) also comprises:
Dismountable sensor tube self-detection circuit (102), in the situation that described sensor tube self-detection circuit (102) is installed to described transmitter (100) above and is electrically accessed described transmitter (100), described sensor tube self-detection circuit (102) determines in described vibrating flow pipe whether have failure condition based on described sensor signal.
2. transmitter according to claim 1 (100), also comprise place in circuit (103), place in circuit (103) is for electrically accessing described transmitter (100) by described sensor tube self-detection circuit (102), wherein, described place in circuit (103) comprising:
Whether installation and measuring unit (1031), be installed on described transmitter (100) for detection of described sensor tube self-detection circuit (102); And
Access unit (1032), be used for detecting in described installation and measuring unit (1031) when described sensor tube self-detection circuit (102) is installed on described transmitter (100), described sensor tube self-detection circuit (102) is electrically accessed to described transmitter (100).
3. transmitter according to claim 1 (100), also comprise hand switch, described hand switch, for after described sensor tube self-detection circuit (102) is installed on described transmitter (100), manually electrically accesses described transmitter (100) by described sensor tube self-detection circuit (102).
4. according to the transmitter (100) described in any one in claim 1-3, wherein, described sensor tube self-detection circuit (102) comprising:
Sensor signal detection unit (1021), for described sensor signal is carried out to sensing, and determines in described vibrating flow pipe whether have failure condition based on described sensor signal;
Signal transmission unit (1022), for i) determining in described sensor signal detection unit (1021) and described sensor signal sent to described sample circuit (101) in the time that described vibrating flow pipe does not exist failure condition, and ii) determine in described sensor signal detection unit (1021) and there is failure condition in described vibrating flow pipe time, stop transmitting described sensor signal; And
Alarm unit (1023) sends alerting signal for determining in described sensor signal detection unit (1021) in the time that described vibrating flow pipe exists failure condition.
5. transmitter according to claim 1 (100), wherein, described sensor is embedded in described transmitter (100).
6. transmitter according to claim 1 (100), wherein, described sensor separates with described transmitter (100).
7. transmitter according to claim 1 (100), wherein, described sensor tube self-detection circuit (102) is modularized circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289111.4U CN203929146U (en) | 2014-05-30 | 2014-05-30 | Transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289111.4U CN203929146U (en) | 2014-05-30 | 2014-05-30 | Transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929146U true CN203929146U (en) | 2014-11-05 |
Family
ID=51824947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289111.4U Active CN203929146U (en) | 2014-05-30 | 2014-05-30 | Transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222842A (en) * | 2014-05-30 | 2016-01-06 | 微动公司 | Transmitter and sensor signal is become to the method sent in this transmitter |
| CN107235027A (en) * | 2016-03-29 | 2017-10-10 | 罗伯特·博世有限公司 | Crash detection device, induction band and control unit for vehicle |
-
2014
- 2014-05-30 CN CN201420289111.4U patent/CN203929146U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222842A (en) * | 2014-05-30 | 2016-01-06 | 微动公司 | Transmitter and sensor signal is become to the method sent in this transmitter |
| CN107235027A (en) * | 2016-03-29 | 2017-10-10 | 罗伯特·博世有限公司 | Crash detection device, induction band and control unit for vehicle |
| CN107235027B (en) * | 2016-03-29 | 2022-01-04 | 罗伯特·博世有限公司 | Collision detection apparatus for vehicle, induction belt, and control unit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |