CN2549438Y - Digital open channel flowmeter - Google Patents

Digital open channel flowmeter Download PDF

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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
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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
Application number
CN 02262780
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Chinese (zh)
Inventor
沈波
黄勇
程吉林
肖海涛
吉庆丰
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Individual
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Individual
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Priority to CN 02262780 priority Critical patent/CN2549438Y/en
Application granted granted Critical
Publication of CN2549438Y publication Critical patent/CN2549438Y/en
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Expired - Fee Related legal-status Critical Current

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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

Digital open-channel meter
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.
CN 02262780 2002-06-27 2002-06-27 Digital open channel flowmeter Expired - Fee Related CN2549438Y (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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

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C19 Lapse of patent right due to non-payment of the annual fee
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