CN2549438Y - Digital open channel flowmeter - Google Patents
Digital open channel flowmeter Download PDFInfo
- Publication number
- CN2549438Y CN2549438Y CN 02262780 CN02262780U CN2549438Y CN 2549438 Y CN2549438 Y CN 2549438Y CN 02262780 CN02262780 CN 02262780 CN 02262780 U CN02262780 U CN 02262780U CN 2549438 Y CN2549438 Y CN 2549438Y
- Authority
- CN
- China
- Prior art keywords
- digital open
- induced signal
- signal receiving
- water level
- test rod
- 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
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a digital open channel flowmeter. The utility model is characterized in that the utility model is provided with a testing rod; the testing rod is sleeved with a water level float which can move upwards and downwards along the testing rod; the water level float is internally provided with an induction signal generating component; the testing rod is internally provided with a unit of induction signal receiving component; the unit of induction signal receiving component which is arranged inside the testing rod is connected with a signal processing device. The utility model has the advantages of novel and crafty structure, rational and practical design, accurate and reliable water level current testing, easy use, low cost and being convenient for carrying.
Description
Technical field:
The utility model relates to measuring technique, is the measurement mechanism of a kind of water level and flow, specifically, is a kind of digital open-channel meter.
Background technology:
Present flowmeter is a lot, and along with science and technology development, and technical merit is also improving day by day, but the existing flowmeter that is used to measure open channel is seldom, even have, also complex structure, use inconveniently, measure inaccurate.
Summary of the invention:
The purpose of this utility model provides a kind of simple and practical, detection is accurately reliable, easy to use, cost is low digital open-channel meter.
Technical solution of the present utility model is: a kind of digital open-channel meter, it is characterized in that: a test rod is arranged, being set with on the test rod can be along its water level float that moves up and down, the induced signal generation part is housed in the water level float, induced signal receiving-member in groups is housed in the test rod, and the induced signal receiving-member in groups that is equipped with in the test rod is connected with a signal processing apparatus.
Induced signal generation part described in the utility model is a reaction magnetic ring, and the induced signal receiving-member is a tongue tube.The one end phase of tongue tube in groups also connects, and the other end of each tongue tube is connected on respectively between the resistance that is connected in series mutually.Signal processing apparatus is loaded in the housing on test rod top.A chip microprocessor is arranged in the signal processing apparatus, and chip microprocessor is connected to serial AD sampling thief and serial storage, and is connected to LCD display, and the signal of induced signal receiving-member output connects the serial AD sampling thief.The signal of induced signal receiving-member output through voltage divider or/and voltage follower connects the serial AD sampling thief.
The beneficial effects of the utility model are: novel structure uniqueness, practicality reasonable in design, stage-discharge detect accurately reliable, easy to use, cost is low, portable.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the outside drawing of a kind of digital open-channel meter of the present utility model;
Fig. 2 is the test rod in the digital open-channel meter of the present utility model and the cut-away view of water level float;
Fig. 3 is the circuit diagram of the signal processing apparatus in the digital open-channel meter of the present utility model;
Fig. 4 is the application state figure of digital open-channel meter of the present utility model.
Embodiment:
Fig. 1, Fig. 2, Fig. 3, Fig. 4 have described an embodiment of the present utility model jointly.In this embodiment, a test rod 1 is arranged, being set with on the test rod 1 can be along its water level float that moves up and down 2, induced signal generation part 3 is housed in the water level float 2, induced signal receiving-member 4 in groups is housed in the test rod 1, and the induced signal receiving-member 4 in groups that is equipped with in the test rod 1 is connected with a signal processing apparatus.Described induced signal generation part 3 is a reaction magnetic ring, and induced signal receiving-member 4 is a tongue tube.The one end phase of tongue tube in groups also connects, and the other end of each tongue tube is connected on respectively between the resistance 5 that is connected in series mutually.Signal processing apparatus is loaded in the housing 6 on test rod top.
A chip microprocessor 2051 is arranged in the signal processing apparatus, chip microprocessor 2051 is connected to serial AD sampling thief TLC8031 and serial storage 2041, and be connected to LCD display, the signal of induced signal receiving-member 4 outputs meets serial AD sampling thief TLC8031.The signal of induced signal receiving-member 4 output through voltage divider or/and voltage follower meets serial AD sampling thief TLC8031.
The foregoing description is based on 2051 microprocessors, in conjunction with serial AD transducer 0831 and serial storage 2041, reaches under the situation of this flowmeter function in assurance, has higher performance.The major function of this flowmeter is to gather resistance (water level) signal, and shows the flow integration in LCD (liquid crystal digital) mode, and its scope is 0~99999999, and the back self-zeroing crosses the border.
TLC8031 is 8 bits serial A sampling thiefs in the circuit, and each pin function is: the choosing of 1-sheet, the input of 2-analog quantity, 5-reference voltage, 6-carry digit output terminal, 7-shift pulse signal.2041 is serial storagies of a function admirable, and each pin function is: 5-carry digit output terminal, 6-power supply ground.Because system needs the keyboard input, therefore when design, be provided with two keyboards.RX is resistance (water level) signal incoming end.
Resistance (water level) signal inserts this flowmeter by RX, by after the measuring resistance dividing potential drop by voltage follower (can) simulating signal is imported serial AD sampling thief TLC8031, and chip microprocessor 2051 is with this simulating signal sampling and as calculated, the flow integration is presented on the LCD, simultaneously these data are kept on the serial storage 2041, so that data are not lost after the power down.
Also have resistance R 1, R2, R3, R7, capacitor C 1, C2, C3, crystal oscillator X, button switch K 1, components and parts such as K2, integrated circuit LF356 in the circuit diagram.
Claims (7)
1, a kind of digital open-channel meter, it is characterized in that: a test rod is arranged, being set with on the test rod can be along its water level float that moves up and down, the induced signal generation part is housed in the water level float, induced signal receiving-member in groups is housed in the test rod, and the induced signal receiving-member in groups that is equipped with in the test rod is connected with a signal processing apparatus.
2, digital open-channel meter according to claim 1 is characterized in that: the induced signal generation part is a reaction magnetic ring, and the induced signal receiving-member is a tongue tube.
3, digital open-channel meter according to claim 2 is characterized in that: the end phase of tongue tube in groups also connects, and the other end of each tongue tube is connected on respectively between the resistance that is connected in series mutually.
4, according to claim 1 or 2,3 described digital open-channel meters, it is characterized in that: signal processing apparatus is loaded in the housing on test rod top.
5, according to claim 1 or 2,3 described digital open-channel meters, it is characterized in that: a chip microprocessor is arranged in the signal processing apparatus, chip microprocessor is connected to serial AD sampling thief and serial storage, and be connected to LCD display, the signal of induced signal receiving-member output connects the serial AD sampling thief.
6, digital open-channel meter according to claim 5 is characterized in that: the signal of induced signal receiving-member output through voltage divider or/and voltage follower connects the serial AD sampling thief.
7, according to claim 1 or 2,3 described digital open-channel meters, it is characterized in that: signal processing device is equipped with two keyboards.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02262780 CN2549438Y (en) | 2002-06-27 | 2002-06-27 | Digital open channel flowmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02262780 CN2549438Y (en) | 2002-06-27 | 2002-06-27 | Digital open channel flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2549438Y true CN2549438Y (en) | 2003-05-07 |
Family
ID=33729279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02262780 Expired - Fee Related CN2549438Y (en) | 2002-06-27 | 2002-06-27 | Digital open channel flowmeter |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2549438Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102269770A (en) * | 2011-05-13 | 2011-12-07 | 山东大学 | Stick for gauging flow velocity of optical fibers |
CN103017869A (en) * | 2012-11-28 | 2013-04-03 | 华南农业大学 | Water level measuring system and method based on digital image processing |
CN105466527A (en) * | 2015-12-30 | 2016-04-06 | 中国水利水电科学研究院 | Thin sheet flow roll wave measurement system and method based on electromagnetic sensors |
-
2002
- 2002-06-27 CN CN 02262780 patent/CN2549438Y/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102269770A (en) * | 2011-05-13 | 2011-12-07 | 山东大学 | Stick for gauging flow velocity of optical fibers |
CN103017869A (en) * | 2012-11-28 | 2013-04-03 | 华南农业大学 | Water level measuring system and method based on digital image processing |
CN103017869B (en) * | 2012-11-28 | 2015-07-29 | 华南农业大学 | A kind of water stage measurement system and method based on Digital Image Processing |
CN105466527A (en) * | 2015-12-30 | 2016-04-06 | 中国水利水电科学研究院 | Thin sheet flow roll wave measurement system and method based on electromagnetic sensors |
CN105466527B (en) * | 2015-12-30 | 2018-11-16 | 中国水利水电科学研究院 | A kind of sheet flow roll wave measuring system and method based on electromagnetic sensor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202814466U (en) | Electronic water meter | |
CN201845051U (en) | Three-phase intelligent electric energy meter | |
CN106569029A (en) | Single-phase intelligent electric meter | |
CN100451562C (en) | Non-magnet senser measurer and its measuring method | |
CN106093841A (en) | A kind of hand-held electric energy meter on-site calibrator | |
CN2549438Y (en) | Digital open channel flowmeter | |
CN202126719U (en) | Electronic prepaying watt-hour meter | |
CN203364965U (en) | Light signal detection device based on equal precision frequency measurement | |
CN205941878U (en) | On --spot check gauge of hand -held type electric energy meter | |
CN202794284U (en) | Multifunctional intelligent electric power meter | |
CN202562533U (en) | A gas flow measuring device metering from zero | |
CN103364083B (en) | Equal precision frequency measuring-based optical signal detection device and method | |
CN103176022A (en) | Digital multimeter with automatic range conversion function | |
CN2687684Y (en) | Digital capacitive-inductance measuring instrument | |
CN203433041U (en) | An electric energy meter provided with a communication function | |
CN203672432U (en) | High-precision low-power-consumption membrane-type gas flow totalizer | |
CN201173953Y (en) | Portable double-display automatic range digital megameter | |
CN204439695U (en) | A kind of Intelligent digital multimeter of voice broadcast | |
CN203274819U (en) | Liquid measurement SoC chip based on ultrasonic technology | |
CN203290903U (en) | Skin analysis meter | |
CN202256453U (en) | Combined instrument for measuring single-phase voltage and current | |
Liu | Research on Intelligent Water Meter Based on Non Magnetic Sensor and NB-IoT Communication Technology | |
CN106370928A (en) | Electronic watt-hour meter and measuring method thereof | |
CN205809170U (en) | A kind of multifunctional digital frequency measuring equipment based on FPGA | |
CN109298238A (en) | A kind of frequency measurement method and its measuring system |
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 |