CN2322146Y - Flow speed measurer - Google Patents
Flow speed measurer Download PDFInfo
- Publication number
- CN2322146Y CN2322146Y CN 97241278 CN97241278U CN2322146Y CN 2322146 Y CN2322146 Y CN 2322146Y CN 97241278 CN97241278 CN 97241278 CN 97241278 U CN97241278 U CN 97241278U CN 2322146 Y CN2322146 Y CN 2322146Y
- Authority
- CN
- China
- Prior art keywords
- signal
- flow speed
- impeller shaft
- detection bodies
- speed measurer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Volume Flow (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The utility model relates to a flow velocity measurement, characterized in that the upper end of an impeller shaft is arranged in a checking body on one side; the upper part of the impeller shaft is provided with a signal reflector. A cable channel on a projecting part of the checking body is provided with a signal transmitting cable fixed by a sealing connector and a positioning screw, and the end of the signal transmitting cable is provided with a signal detection head. A signal reflector is in a circular ring body structure, and a circumferential surface are alternately provided with multiple high contrast reflective devices. The checking body is connected with the lower end of an impeller shaft via a connecting bend pipe, and the other end of the signal transmitting cable can be conducted with proceed signal shaping process. A signal input interface of a signal processing display for accounting is connected.
Description
The utility model belongs to the fluid measurement Instrument technology field, is specifically related to a kind of Flow speed measurer of measuring the mobile speed of water of rivers, open drain channel.
In water system survey, current control, environmental pollution monitoring and waste water control process, usually adopt Flow speed measurer to measure the mobile speed of water of rivers, open drain channel.Though the flow prior art of speed of water is more as measuring, the structure that has is complicated, and inconvenience is made and measuring operation, and it is long to have plenty of Measuring Time, or measurement data will could be determined the water speed that flows by calculating.
For this reason, the purpose of this utility model is to avoid above-mentioned prior art deficiency, designs a kind ofly to be easy to make, to be convenient for measuring, fast, and can directly demonstrate the Flow speed measurer of instantaneous velocity value.
The purpose of this utility model can realize by following technical proposals:
Flow speed measurer is by signal supervisory instrument, and signal-transmitting cable and signal Processing display device are formed.Signal supervisory instrument is made up of impeller, signal reflectors, bridge piece, the head that is tightly connected, location adjusting screw, signal detection head, detection bodies etc.; The signal Processing display device latchs decoder driver circuit, display result circuit and self checking circuit, measurement timing circuit and power supply etc. by signal transformation circuit, signal Processing, signal switch, counting and forms.
Impeller rotates under the impact of current and is with the reverberator that is installed in the signal on the impeller shaft to rotate synchronously, and its rotating speed and water flow velocity are linear.After display device is opened, signal detection head is with light velocity directive signal reflectors, signal reflectors in the rotation is more intermittently with light reflected back signal detection head, signal detection head just converts thereof into electric impulse signal, signal display apparatus with the pulse signal shaping of importing after receiving this interrupted light signal, counts after the process of frequency multiplication, latchs, shows.
Particularly, the technical scheme main points of the utility model are: the Flow speed measurer that comprises impeller and signal Processing display at least, its key aspect is: end device is in the detection bodies of side band projection on the impeller shaft, the impeller shaft upper unit has signal reflectors, useful head and the fixing signal-transmitting cable of set screw of being tightly connected at the cable passage place of detection bodies projection, the end equipment signal detection head of signal-transmitting cable.
And signal reflectors is a torus structure, and circumferential surface is alternately arranged a plurality of hard contrast reflection bars;
And detection bodies is connected by bridge piece with the bottom of impeller shaft.
And the other end of signal-transmitting cable is connected with the signal input interface of the signal Processing display that can carry out signal shaping processing, counting.
The advantage that the utility model had is:
1, simple in structure, reasonable in design, measuring speed is fast, measurement result is accurate, can monitor the variation of rivers irrigation canals and ditches current at any time.
2, directly show measurement result with digital form.
3, energy consumption is low, volume is light, is convenient to operate and carry.
Be described in further detail the utility model below in conjunction with drawings and Examples.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is electric theory diagrams of the present utility model.
The drawing of accompanying drawing 1 is described as follows:
1, bridge piece; 2, signal detection head; 3, the head that is tightly connected; 4, signal-transmitting cable; 5, signal Processing display; 6, location regulating ring; 7, detection bodies; 8, signal reflectors; 9, impeller; 10, impeller shaft.
With reference to accompanying drawing 1: end device is in the detection bodies of side band projection on the impeller shaft, signal reflectors is installed on the impeller shaft, detection bodies band high spot is offered cable passage, and be provided with sealing adaptor and the fixing signal-transmitting cable of set screw, the reflective electrical signal detection head of the end equipment of signal-transmitting cable.The upper end device location regulating ring and the sealing gland of detection bodies, the detection bodies bottom is connected with bridge piece with the impeller shaft bottom.
With reference to accompanying drawing 2: latch the driving circuit translated and LED shows signal input end and switch by shaping circuit, frequency multiplier circuit, measurement update change-over circuit, self calibration positive circuit, counting and form the signal Processing display.
The course of work of the present utility model is as follows:
Impeller rotates under the impact of current and drives the signal reflectors that is fixed on the impeller shaft and rotates synchronously, and its rotating speed and water flow velocity are linear.The start signal processing display, the signal detection head that is installed in signal-transmitting cable is just with light beam directive signal reflectors, signal reflectors in the rotation is intermittently with light reflected back signal detection head, signal detection head converts thereof into electric impulse signal again, exports the signal Processing display to by signal-transmitting cable again; Signal Monitor passes the pulse signal shaping of input frequently and counts, latchs, shows after the processing.Timing circuit is the umber of pulse that control enters latch, and interior water velocity of display digit and unit interval is equated.
Claims (4)
1, a kind of Flow speed measurer that is used to measure rivers, open drain ditch water flow speed, at least comprise impeller 1, flow velocity display 5 is formed, it is characterized in that: the last end device of impeller shaft 10 is in the detection bodies 7 of side band projection, impeller shaft 10 upper unit signal reflectors 8, useful the 3 fixing signal-transmitting cables 4 that are tightly connected at the cable passage place of detection bodies 7 high spots, the end equipment reflecting light electrical signal detection of signal-transmitting cable 42.
2, Flow speed measurer according to claim 1 is characterized in that: signal reflectors 8 is torus structures, and the surface alternately is discharged to a plurality of hard contrast reflection bars.
3, Flow speed measurer according to claim 1 is characterized in that: detection bodies 7 is connected by bridge piece 1 with the lower end of impeller shaft 10, and location regulating ring 6 and sealing gland sealing are arranged at the top of detection bodies 7.
4, Flow speed measurer according to claim 1, the other end of signal-transmitting cable 4 is connected with the signal input interface of the signal Processing display 8 that can carry out shaping processing counting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241278 CN2322146Y (en) | 1997-09-16 | 1997-09-16 | Flow speed measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241278 CN2322146Y (en) | 1997-09-16 | 1997-09-16 | Flow speed measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2322146Y true CN2322146Y (en) | 1999-06-02 |
Family
ID=33950788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97241278 Expired - Fee Related CN2322146Y (en) | 1997-09-16 | 1997-09-16 | Flow speed measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2322146Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680338A (en) * | 2018-03-26 | 2018-10-19 | 山东大学 | Multiparameter wireless monitors self-powered fluorescent tracing system and method in real time |
| CN110456096A (en) * | 2019-09-11 | 2019-11-15 | 西南交通大学 | A kind of vane type debris flow velocity monitoring warning device and its application method |
-
1997
- 1997-09-16 CN CN 97241278 patent/CN2322146Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680338A (en) * | 2018-03-26 | 2018-10-19 | 山东大学 | Multiparameter wireless monitors self-powered fluorescent tracing system and method in real time |
| CN108680338B (en) * | 2018-03-26 | 2020-04-21 | 山东大学 | Multi-parameter wireless real-time monitoring self-powered fluorescent tracing system and method |
| CN110456096A (en) * | 2019-09-11 | 2019-11-15 | 西南交通大学 | A kind of vane type debris flow velocity monitoring warning device and its application method |
| CN110456096B (en) * | 2019-09-11 | 2024-02-06 | 西南交通大学 | Impeller type debris flow speed monitoring and early warning device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |