CN204359361U - A kind of intelligent flow meter - Google Patents
A kind of intelligent flow meter Download PDFInfo
- Publication number
- CN204359361U CN204359361U CN201420831071.1U CN201420831071U CN204359361U CN 204359361 U CN204359361 U CN 204359361U CN 201420831071 U CN201420831071 U CN 201420831071U CN 204359361 U CN204359361 U CN 204359361U
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- circuit
- power
- self test
- flowmeter
- test circuit
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Abstract
The utility model discloses a kind of intelligent flow meter, comprise casing, power circuit, flowmeter, control circuit and power self test circuit; Power circuit, flowmeter, control circuit and power self test circuit are arranged in casing; Power circuit is connected with flowmeter, power self test circuit and control circuit respectively; Control circuit is connected with flowmeter and power self test circuit respectively; Described power self test circuit is for detecting the output voltage values of power circuit.The utility model adopts power self test circuit flow meter power circuit to carry out self-inspection; Ensure that flowmeter can normally work in all cases, even in the wild in engineering or in unexpected abnormality situation, also can carry out flow measurement for a long time, ensure that not losing of data.Therefore can ensure that electric power output voltage is in normal range or change power supply in time; This circuit structure is simple, cost is low and reliable and stable.
Description
Technical field
The utility model relates to a kind of flowmeter, and particularly a kind of energy flow meter power circuit carries out the intelligent flow meter of self-inspection.
Background technology
Along with developing rapidly of Microcomputer Technology and embedded system, the regular logical electronic circuit of conventional instrument is replaced with microcomputer (single-chip microcomputer and embedded system), the smart instrument with certain intelligence of Development of New Generation, has become the new trend of instrument development field.Flowmeter requires to be applicable to various complex environment, and can combine with other upstream and downstream equipment, realizes intellectuality and the multifunction of on-the-spot flow measurement.Flowmeter is the advanced instrument of on-line measurement fluids within pipes flow, in the industries such as oil, chemical industry, papermaking, metallurgy, have common application, and constantly to intelligentized future development.
In order to can normally work in all cases by guaranteed flow meter, even in the wild in engineering or in unexpected abnormality situation, also can carry out flow measurement for a long time, ensure that not losing of data.Therefore need to carry out self-inspection to power circuit to ensure that electric power output voltage is in normal range or change power supply in time.
Utility model content
In view of this, technical problem to be solved in the utility model is to provide the intelligent flow meter that a kind of energy flow meter power circuit carries out self-inspection.
The purpose of this utility model is achieved in that
A kind of intelligent flow meter that the utility model provides, comprises casing, power circuit, flowmeter, control circuit and power self test circuit;
Described power circuit, flowmeter, control circuit and power self test circuit are arranged in casing;
Described power circuit is connected with flowmeter, power self test circuit and control circuit respectively;
Described control circuit is connected with flowmeter and power self test circuit respectively; Described power self test circuit is for detecting the output voltage values of power circuit.
Further, described power self test circuit comprises voltage self-checking circuit, bleeder circuit, reference voltage source, comparer and transwitch;
Described voltage self-checking circuit is connected the output voltage values for obtaining power circuit two ends with power circuit; Described voltage self-checking circuit connects the first input end of comparer by bleeder circuit, described reference voltage source connects the second input end of comparer; Described transwitch is connected between power circuit and flowmeter; The control end of described transwitch is connected the break-make for controlling transwitch with the output terminal of comparer.
Further, described power self test circuit is also provided with pilot lamp; Described pilot lamp is connected with control circuit, for showing off-position.
Further, described power self test circuit also comprise by compressing switch, switch lever and elastic washer;
On described pressing switch-linear hybrid casing; Describedly by compressing switch casing junction is provided with elastic washer; Described by compressing switch for the on off operating mode by pressing down control control circuit; Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
The beneficial effects of the utility model are: the utility model adopts power self test circuit flow meter power circuit to carry out self-inspection; Ensure that flowmeter can normally work in all cases, even in the wild in engineering or in unexpected abnormality situation, also can carry out flow measurement for a long time, ensure that not losing of data.Therefore can ensure that electric power output voltage is in normal range or change power supply in time; This circuit structure is simple, cost is low and reliable and stable.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
The intelligent flow meter schematic diagram that Fig. 1 provides for the utility model embodiment;
The magneto-dependent sensor amplification circuit diagram that Fig. 2 provides for the utility model embodiment.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in the figure, a kind of intelligent flow meter that the utility model provides, comprises casing, power circuit, flowmeter, control circuit and power self test circuit;
Described power circuit, flowmeter, control circuit and power self test circuit are arranged in casing;
Described power circuit is connected with flowmeter, power self test circuit and control circuit respectively;
Described control circuit is connected with flowmeter and power self test circuit respectively; Described power self test circuit is for detecting the output voltage values of power circuit.
Described power self test circuit comprises voltage self-checking circuit, bleeder circuit, reference voltage source, comparer and transwitch;
Described voltage self-checking circuit is connected the output voltage values for obtaining power circuit two ends with power circuit; Described voltage self-checking circuit connects the first input end of comparer by bleeder circuit, described reference voltage source connects the second input end of comparer; Described transwitch is connected between power circuit and flowmeter; The control end of described transwitch is connected the break-make for controlling transwitch with the output terminal of comparer.
Described power self test circuit is also provided with pilot lamp; Described pilot lamp is connected with control circuit, for showing off-position.
Described power self test circuit also comprises by compressing switch, switch lever and elastic washer;
On described pressing switch-linear hybrid casing; Describedly by compressing switch casing junction is provided with elastic washer; Described by compressing switch for the on off operating mode by pressing down control control circuit; Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
The intelligent flow meter that the present embodiment provides can adopt the single-chip microcomputer of MSP430F449 to realize; Ultimate principle is: rely on parts to rotate, produce electric impulse signal with photoelectric encoder or magneto-dependent sensor, and delivers to the flow computing device be made up of single-chip microcomputer and process.This flowmeter can also adopt the intelligent instrument new technologies such as Data correction, digital filtering, multi output form, self diagnosis, power down protection and dual power supply system and dual sensor technology, more can adapt to the working environment of various complexity.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described the utility model by referring to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, various change can be made to it in the form and details, and not depart from the spirit and scope that the utility model limits.
Claims (4)
1. an intelligent flow meter, is characterized in that: comprise casing, power circuit, flowmeter, control circuit and power self test circuit;
Described power circuit, flowmeter, control circuit and power self test circuit are arranged in casing;
Described power circuit is connected with flowmeter, power self test circuit and control circuit respectively;
Described control circuit is connected with flowmeter and power self test circuit respectively; Described power self test circuit is for detecting the output voltage values of power circuit.
2. intelligent flow meter according to claim 1, is characterized in that: described power self test circuit comprises voltage self-checking circuit, bleeder circuit, reference voltage source, comparer and transwitch;
Described voltage self-checking circuit is connected the output voltage values for obtaining power circuit two ends with power circuit; Described voltage self-checking circuit connects the first input end of comparer by bleeder circuit, described reference voltage source connects the second input end of comparer; Described transwitch is connected between power circuit and flowmeter; The control end of described transwitch is connected the break-make for controlling transwitch with the output terminal of comparer.
3. intelligent flow meter according to claim 1, is characterized in that: described power self test circuit is also provided with pilot lamp; Described pilot lamp is connected with control circuit, for showing off-position.
4. intelligent flow meter according to claim 1, is characterized in that: described power self test circuit also comprises by compressing switch, switch lever and elastic washer;
On described pressing switch-linear hybrid casing; Describedly by compressing switch casing junction is provided with elastic washer; Described by compressing switch for the on off operating mode by pressing down control control circuit; Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831071.1U CN204359361U (en) | 2014-12-25 | 2014-12-25 | A kind of intelligent flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831071.1U CN204359361U (en) | 2014-12-25 | 2014-12-25 | A kind of intelligent flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359361U true CN204359361U (en) | 2015-05-27 |
Family
ID=53260825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420831071.1U Expired - Fee Related CN204359361U (en) | 2014-12-25 | 2014-12-25 | A kind of intelligent flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204359361U (en) |
-
2014
- 2014-12-25 CN CN201420831071.1U patent/CN204359361U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20161225 |