CN103630194A - Liquid level measuring instrument - Google Patents
Liquid level measuring instrument Download PDFInfo
- Publication number
- CN103630194A CN103630194A CN201210309024.6A CN201210309024A CN103630194A CN 103630194 A CN103630194 A CN 103630194A CN 201210309024 A CN201210309024 A CN 201210309024A CN 103630194 A CN103630194 A CN 103630194A
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- liquid level
- level measuring
- measuring instrument
- resistance
- wires
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a liquid level measuring instrument, and belongs to the technical field of liquid level measuring. To achieve the purposes that the liquid level measuring instrument is simple in structure, low in manufacturing cost, high in measuring precision, convenient to carry and the like, the liquid level measuring instrument mainly comprises a constant voltage source, a switch, a digital ammeter, a plurality of resistors with the same resistance value, a plurality of wires, a plurality of thin iron wires and an insulating rod on which the thin iron wires are fixed. The resistors with the same resistance value are connected in series and then are connected with the constant voltage source and the switch in series to form a closed loop circuit, the digital ammeter is connected to the closed loop circuit in series, the thin iron wires are fixed on the insulating rod at equal intervals, one end of each thin iron wire is connected with part of the circuit through the wires, and connecting nodes are located between the resistors. The liquid level measuring instrument is used in reservoirs, the industry, the agriculture and other places where the liquid level needs to be controlled, and very good conditions are created for controlling and applying water energy.
Description
Technical field
The present invention relates to a kind of fluid level measuring instrument.
Background technology
There is complex structure in conventional fluid level measuring instrument at present, and measuring accuracy is not high, and the more high problems of supply voltage of measurement mechanism needs.Such as Buoyancy-type level measuring instrument just exists the problem that measuring accuracy is not high, and poor anti jamming capability; Such as Ultrasonic Liquid Level Indicator just exists the more expensive problem of price.
Summary of the invention
In order to solve existing fluid level measuring instrument, have complex structure, measuring accuracy is not high, and the more high problems of supply voltage of measurement mechanism needs.The invention provides a kind of fluid level measuring instrument, this fluid level measuring instrument is simple in structure, and measuring accuracy is high, and price is lower, and the supply voltage needing is also lower.
The technical solution adopted for the present invention to solve the technical problems is:
A fluid level measuring instrument, is characterized in that: comprise constant pressure source, and switch, digital electronic ammeter, a plurality of resistance with similar resistance, multiple conducting wires, many thin wires and one is the insulation rod of thin wire fixedly;
Between the resistance of a plurality of similar resistance, connect, be then composed in series closed-loop path with constant pressure source, switch; Digital electronic ammeter is connected in loop, many equally spaced being fixed on insulation rod of thin wire, and one end of every thin wire is wired to the tie point place of resistance and resistance.
When insulation rod is placed in liquid, because a part of thin wire of insulation rod is immersed in liquid, cause a part of resistance of circuit part by short circuit, because circuit voltage is constant, so the linear variation of the reading of digital electronic ammeter, thereby reach the object of measuring liquid level.Because the spacing of thin wire can be very little, the precision of numerical value reometer is very high again, so that this fluid level measuring instrument measuring accuracy can be done is very high.
The invention has the beneficial effects as follows: simple in structure, cost is lower, and measuring accuracy is high, the supply voltage needing is lower, easy to carry.
Accompanying drawing explanation
Fig. 1 is the connection diagram of circuit theory diagrams of the present invention and circuit diagram and thin wire.
Wherein, the 1st, constant pressure source, the 2nd, digital electronic ammeter, the 3rd, switch, the 4th, resistance, the 5th, wire, the 6th, insulation rod, the 7th, thin wire
Embodiment
Below in conjunction with accompanying drawing, to the present invention is many, further describe.
Fluid level measuring instrument of the present invention, comprises constant pressure source, switch, and digital electronic ammeter, a plurality of resistance with similar resistance, multiple conducting wires, many thin wires and one is the insulation rod of thin wire fixedly;
Between the resistance of a plurality of similar resistance, connect, be then composed in series closed-loop path with constant pressure source, switch; Digital electronic ammeter is connected in loop, many equally spaced being fixed on insulation rod of thin wire, and one end of every thin wire is wired to the tie point place of resistance and resistance.
When insulation rod is placed in liquid, because a part of thin wire of insulation rod is immersed in liquid, cause a part of resistance of circuit part by short circuit, because circuit voltage is constant, so the linear variation of the reading of digital electronic ammeter, thereby reach the object of measuring liquid level.Because the spacing of thin wire can be very little, the precision of numerical value reometer is very high again, so that this fluid level measuring instrument measuring accuracy can be done is very high.
Claims (1)
1. a fluid level measuring instrument, is characterized in that: comprise constant pressure source, and switch, digital electronic ammeter, a plurality of resistance with similar resistance, multiple conducting wires, many thin wires and one is the insulation rod of thin wire fixedly;
Between the resistance of a plurality of similar resistance, connect, be then composed in series closed-loop path with constant pressure source, switch; Digital electronic ammeter is connected in loop, many equally spaced being fixed on insulation rod of thin wire, and one end of every thin wire is wired to the tie point place of resistance and resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309024.6A CN103630194A (en) | 2012-08-28 | 2012-08-28 | Liquid level measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309024.6A CN103630194A (en) | 2012-08-28 | 2012-08-28 | Liquid level measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103630194A true CN103630194A (en) | 2014-03-12 |
Family
ID=50211477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210309024.6A Pending CN103630194A (en) | 2012-08-28 | 2012-08-28 | Liquid level measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103630194A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932053A (en) * | 2017-02-20 | 2017-07-07 | 张宇 | A kind of household electrical appliance and its liquid-level detecting method and device |
| CN107860437A (en) * | 2017-12-18 | 2018-03-30 | 大连海事大学 | A kind of circular pipe type liquid level sensor |
| CN109687728A (en) * | 2018-12-27 | 2019-04-26 | 骆金山 | The rectification circuit of changeable resistance voltage drop |
| CN111457985A (en) * | 2020-01-01 | 2020-07-28 | 骆金山 | Current type water level meter |
| CN111811611A (en) * | 2020-01-02 | 2020-10-23 | 骆金山 | Half-wave power supply voltage type water level meter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202917Y (en) * | 1993-12-17 | 1995-07-05 | 郑应智 | Direct conduction type liquid level sensor |
| JPH07198447A (en) * | 1993-12-28 | 1995-08-01 | Omron Corp | Liquid level measuring instrument |
| CN1155073A (en) * | 1996-07-24 | 1997-07-23 | 西安交通大学 | Low-temp. liquid-level meter |
| CN2351777Y (en) * | 1998-06-30 | 1999-12-01 | 刘汉玖 | Universal multi-section displaying liquid level automatic controlling instrument |
| TW397102U (en) * | 1999-11-15 | 2000-07-01 | Suen Wen Tzung | Displaying device for indicating the water level in a water tower |
| US20030226407A1 (en) * | 2002-06-07 | 2003-12-11 | Smc Kabushiki Kaisha | Position measuring device using change in inductance of coil, float-type flowmeter, and position measuring method |
| CN1595075A (en) * | 2004-06-18 | 2005-03-16 | 李虬 | Water level measuring apparatus |
| CN1900664A (en) * | 2005-07-19 | 2007-01-24 | 南京大学 | Resistance type water level sensor |
| CN201964930U (en) * | 2011-01-30 | 2011-09-07 | 浙江达峰科技有限公司 | Electrode water level sensor |
-
2012
- 2012-08-28 CN CN201210309024.6A patent/CN103630194A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202917Y (en) * | 1993-12-17 | 1995-07-05 | 郑应智 | Direct conduction type liquid level sensor |
| JPH07198447A (en) * | 1993-12-28 | 1995-08-01 | Omron Corp | Liquid level measuring instrument |
| CN1155073A (en) * | 1996-07-24 | 1997-07-23 | 西安交通大学 | Low-temp. liquid-level meter |
| CN2351777Y (en) * | 1998-06-30 | 1999-12-01 | 刘汉玖 | Universal multi-section displaying liquid level automatic controlling instrument |
| TW397102U (en) * | 1999-11-15 | 2000-07-01 | Suen Wen Tzung | Displaying device for indicating the water level in a water tower |
| US20030226407A1 (en) * | 2002-06-07 | 2003-12-11 | Smc Kabushiki Kaisha | Position measuring device using change in inductance of coil, float-type flowmeter, and position measuring method |
| CN1595075A (en) * | 2004-06-18 | 2005-03-16 | 李虬 | Water level measuring apparatus |
| CN1900664A (en) * | 2005-07-19 | 2007-01-24 | 南京大学 | Resistance type water level sensor |
| CN201964930U (en) * | 2011-01-30 | 2011-09-07 | 浙江达峰科技有限公司 | Electrode water level sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932053A (en) * | 2017-02-20 | 2017-07-07 | 张宇 | A kind of household electrical appliance and its liquid-level detecting method and device |
| CN107860437A (en) * | 2017-12-18 | 2018-03-30 | 大连海事大学 | A kind of circular pipe type liquid level sensor |
| CN109687728A (en) * | 2018-12-27 | 2019-04-26 | 骆金山 | The rectification circuit of changeable resistance voltage drop |
| CN111457985A (en) * | 2020-01-01 | 2020-07-28 | 骆金山 | Current type water level meter |
| CN111811611A (en) * | 2020-01-02 | 2020-10-23 | 骆金山 | Half-wave power supply voltage type water level meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Xie Anjun Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| PB01 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Anjun Document name: Notification of Publication of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |