CN106153154A - Electromagnetism interference liquid level emasuring device - Google Patents
Electromagnetism interference liquid level emasuring device Download PDFInfo
- Publication number
- CN106153154A CN106153154A CN201610686270.1A CN201610686270A CN106153154A CN 106153154 A CN106153154 A CN 106153154A CN 201610686270 A CN201610686270 A CN 201610686270A CN 106153154 A CN106153154 A CN 106153154A
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- CN
- China
- Prior art keywords
- float
- liquid level
- ring flange
- framework
- resistance wire
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
A kind of electromagnetism interference liquid level emasuring device disclosed by the invention, it is desirable to provide the liquid level emasuring device that a kind of anti-electromagnetic interference capability is strong.The technical scheme is that: be shaped with open slot at the diametric two ends of float (3), open slot inwall is fixedly connected with lug plate (4), float is in axial sliding between the ring flange of installation framework (1) two ends by guide rod (5), two resistance wire being parallel to each other (2) electrical connections are fixed on the signal input part and signal output part installed on framework big end flanges dish, the lug plate fixed by float both-side opening groove respectively, it is fixed on the small end ring flange installing framework, lug plate overlap resistance silk, float is moved with liquid level by guide rod；Current signal through the resistance wire of small end ring flange conducting another side, exports the signal of telecommunication from signal output part by the resistance wire of electrical connection signal input part, forms the float slide rheostat with level change, the resistance value that output resistance silk is different.
Description
Technical field
The present invention relates to a kind of liquid level emasuring device, is specifically related to a kind of linear resistor type liquid level emasuring device.
Background technology
Liquid level sensor is widely used on aircraft, boats and ships etc., is used for oil level, level measuring, equipment is estimated delivery
The supply of stroke, reasonable arrangement has particularly significant meaning.Liquid level sensor has multiple measuring principle and mode, main flow means to have electric capacity
Formula sensor, pressure transducer etc..The column capacitance that capacitance type sensor is made up of the coaxial aluminum pipe of two mutually insulateds, two
Root metal tube respectively constitutes the two poles of the earth of column capacitance.When input signal (driving signal) is applied to column capacitance the two poles of the earth, produce
Electric field, thus collect capacitance, in column capacitance, liquid level difference then output capacitance value is different.Pressure transducer is then mounted in
Bottom volume, changed by the weight of liquid, cause pressure to change, thus obtain liquid level information.Due to level measuring technology day
Crescent is different, occur in that more high accuracy, increasingly complex, export diversified measurement apparatus and means.But product is the most complicated, become
This is the highest；Reliability is the lowest；And use the way of output of other forms, it is easier to by the interference under complex electromagnetic environment.
Summary of the invention
The task of the present invention is to provide the liquid level that a kind of principle is simple, low cost, reliability are high, anti-electromagnetic interference capability is strong
Measurement apparatus.
The above-mentioned purpose of the present invention can be reached by following measures: a kind of electromagnetism interference liquid level emasuring device, bag
Include: two ends are respectively perpendicular installation framework 1 and the float 3 of guide rod 5 composition connected firmly on ring flange, it is characterised in that: at float 3
Diametric two ends be shaped with open slot, open slot inwall is fixedly connected with lug plate 4, and float 3, by guide rod 5, is installing framework 1
Being in axial sliding between the ring flange of two ends, two resistance wire being parallel to each other 2 electrical connections are fixed on the installation big end flanges dish of framework 1
On signal input part 6 and signal output part 7, respectively by the lug plate 4 that float 3 both-side opening groove is fixing, be fixed on installation
On the small end ring flange of framework 1, lug plate 4 overlap resistance silk 2, float 3 is moved with liquid level by guide rod 5；Current signal passes through
The resistance wire 2 of electrical connection signal input part 6, through the resistance wire 2 of small end ring flange conducting another side, exports electricity from signal output part 7
Signal, forms the float 3 slide rheostat with level change, and float 3 is with different level change positions output resistance silk 2 not
Same resistance value.
The present invention has the advantages that compared to prior art.
Simple in construction, the present invention only has several part and i.e. may make up electromagnetism interference liquid level emasuring device, with low cost, can
Good by property.Reliability is high, anti-electromagnetic interference capability is strong.The present invention uses two resistance wire being parallel to each other 2 electrical connections to be fixed on
Signal input part 6 on the big end flanges dish of framework 1 and signal output part 7 are installed, are fixed by float 3 both-side opening groove respectively
Lug plate 4, is fixed on the small end ring flange installing framework 1, lug plate 4 overlap resistance silk 2, and float 3 passes through guide rod 5 with liquid
Face is moved；Current signal turns on the resistance wire 2 of another side by the resistance wire 2 of electrical connection signal input part 6 through small end ring flange,
Export the signal of telecommunication from signal output part 7, form the float 3 slide rheostat with level change, owing to being output as resistance value
Signal, anti-Electromagnetic Compatibility is very strong, has higher reliability.The concordance of two resistance wires being parallel to each other is good, electricity
Resistance silk is good with the resistance overlap joint value concordance of float 3, supporting by reality installation again, determines zero full value.
The present invention is applicable to the environment that liquid level emasuring device budget is low, electromagnetic compatible environment is poor, reliability requirement is high.
Accompanying drawing explanation
The organigram of Fig. 1 electromagnetism interference of the present invention liquid level emasuring device and float enlarged diagram thereof.
Fig. 2 is the slide rheostat circuit theory schematic diagram of the present invention.
The electromagnetism interference liquid level emasuring device appearance schematic diagram of Fig. 3 present invention.
In figure: 1 installs framework, 2 resistance wires, 3 floats, 5 guide rods, 6 signal input parts, 7 signal output parts, 8 outer tubes.
Detailed description of the invention
Refering to Fig. 1-3 Fig. 2.In embodiment described below, a kind of electromagnetism interference liquid level emasuring device, including: two
End is respectively perpendicular installation framework 1 and the float 3 of guide rod 5 composition connected firmly on ring flange, it is characterised in that: straight at float 3
The two ends in direction, footpath are shaped with open slot, and open slot inwall is fixedly connected with lug plate 4, and float 3, by guide rod 5, is installing framework 1 two ends
Being in axial sliding between ring flange, two resistance wire being parallel to each other 2 electrical connections are fixed on the installation big end flanges dish of framework 1
Signal input part 6 and signal output part 7, respectively by the lug plate 4 that float 3 both-side opening groove is fixing, be fixed on installation framework 1
Small end ring flange on, lug plate 4 overlap resistance silk 2, float 3 is moved with liquid level by guide rod 5；Current signal is by electrical connection
The resistance wire 2 of signal input part 6, through the resistance wire 2 of small end ring flange conducting another side, exports the signal of telecommunication from signal output part 7,
Forming the float 3 slide rheostat with level change, float 3 is different with different level change positions output resistance silk 2
Resistance value.
As a example by measuring fuel oil, first detect the height of fuel tank, and in the light of actual conditions, determine mounting means.According to oil
The height of case determines the length of resistance wire and installs the length of framework 1.Subsequently the float 3 of band lug plate is overlapped with resistance wire 2
Well, make the float 3 of band lug plate when mobile, also do not have the situation that overlap resistance becomes big.Subsequently at resistance wire with floating
The peripheral set upper exterior tube 8 of son 3, it is ensured that the impact that float 3 and resistance wire 2 will not be caused by the liquid level rolling of fuel tank, and ensure
The stability measured.Finally by adding the mode drained the oil, determine the resistance that each liquid level is corresponding.
Claims (1)
1. an electromagnetism interference liquid level emasuring device, including: two ends are respectively perpendicular guide rod (5) composition connecting firmly on ring flange
Installation framework (1) and float (3), it is characterised in that: be shaped with open slot, open slot at the diametric two ends of float (3)
Inwall is fixedly connected with lug plate (4), and float (3) passes through guide rod (5), is in axial sliding between the ring flange of framework (1) two ends installing,
Two resistance wire being parallel to each other (2) electrical connections are fixed on the signal input part (6) and letter installed on the big end flanges dish of framework (1)
Number outfan (7), respectively by the lug plate (4) that float (3) both-side opening groove is fixing, is fixed on the small end installing framework (1)
On ring flange, lug plate (4) overlap resistance silk (2), float (3) is moved with liquid level by guide rod (5)；Current signal is by being electrically connected
Connect the resistance wire (2) resistance wire (2) through small end ring flange conducting another side of signal input part (6), defeated from signal output part (7)
Going out the signal of telecommunication, form the float (3) slide rheostat with level change, float (3) is with the output of different level change positions
The resistance value that resistance wire (2) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686270.1A CN106153154A (en) | 2016-08-18 | 2016-08-18 | Electromagnetism interference liquid level emasuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686270.1A CN106153154A (en) | 2016-08-18 | 2016-08-18 | Electromagnetism interference liquid level emasuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106153154A true CN106153154A (en) | 2016-11-23 |
Family
ID=57330332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610686270.1A Pending CN106153154A (en) | 2016-08-18 | 2016-08-18 | Electromagnetism interference liquid level emasuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106153154A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931871A (en) * | 2017-05-09 | 2017-07-07 | 天津理工大学 | A kind of wide range resistor-type wave-height sensing device |
| CN108917886A (en) * | 2018-08-17 | 2018-11-30 | 广州市番禺区象贤中学 | A kind of sensor-type depth of water range-viewfinder and its operation method |
| CN110530077A (en) * | 2019-09-26 | 2019-12-03 | 珠海格力电器股份有限公司 | Self-adjustable adjusting device for amount of coolant, method and air-conditioning equipment |
| CN112325978A (en) * | 2020-10-28 | 2021-02-05 | 苏州贝康智能制造有限公司 | Resistance type liquid level detection system |
| CN114525655A (en) * | 2022-02-17 | 2022-05-24 | 珠海格力电器股份有限公司 | Liquid level detection device of detergent box, control method and washing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085519U (en) * | 1990-11-23 | 1991-09-25 | 陶天铎 | Slide resistance type magnetic tracking liquid level transducer |
| CN2174688Y (en) * | 1993-10-15 | 1994-08-17 | 魏世奇 | Magnetic control variable-resistance liquid level indicator |
| CN2476800Y (en) * | 2001-05-11 | 2002-02-13 | 陈振华 | Barrel liquid level sensor device |
| JP2004125457A (en) * | 2002-09-30 | 2004-04-22 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Equipment for indicating fuel remaining quantity |
| CN2662210Y (en) * | 2003-12-11 | 2004-12-08 | 任召全 | Liquid level sensor |
| CN200975911Y (en) * | 2006-12-01 | 2007-11-14 | 张卫星 | Liquid level and liquid quantity measuring device |
| CN201149506Y (en) * | 2007-12-03 | 2008-11-12 | 仇郑君 | Resistance-sliding type float levelmeter |
-
2016
- 2016-08-18 CN CN201610686270.1A patent/CN106153154A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085519U (en) * | 1990-11-23 | 1991-09-25 | 陶天铎 | Slide resistance type magnetic tracking liquid level transducer |
| CN2174688Y (en) * | 1993-10-15 | 1994-08-17 | 魏世奇 | Magnetic control variable-resistance liquid level indicator |
| CN2476800Y (en) * | 2001-05-11 | 2002-02-13 | 陈振华 | Barrel liquid level sensor device |
| JP2004125457A (en) * | 2002-09-30 | 2004-04-22 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Equipment for indicating fuel remaining quantity |
| CN2662210Y (en) * | 2003-12-11 | 2004-12-08 | 任召全 | Liquid level sensor |
| CN200975911Y (en) * | 2006-12-01 | 2007-11-14 | 张卫星 | Liquid level and liquid quantity measuring device |
| CN201149506Y (en) * | 2007-12-03 | 2008-11-12 | 仇郑君 | Resistance-sliding type float levelmeter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931871A (en) * | 2017-05-09 | 2017-07-07 | 天津理工大学 | A kind of wide range resistor-type wave-height sensing device |
| CN106931871B (en) * | 2017-05-09 | 2023-05-16 | 天津理工大学 | Wide-range resistance type wave height sensor |
| CN108917886A (en) * | 2018-08-17 | 2018-11-30 | 广州市番禺区象贤中学 | A kind of sensor-type depth of water range-viewfinder and its operation method |
| CN110530077A (en) * | 2019-09-26 | 2019-12-03 | 珠海格力电器股份有限公司 | Self-adjustable adjusting device for amount of coolant, method and air-conditioning equipment |
| CN112325978A (en) * | 2020-10-28 | 2021-02-05 | 苏州贝康智能制造有限公司 | Resistance type liquid level detection system |
| CN112325978B (en) * | 2020-10-28 | 2024-04-12 | 苏州贝康智能制造有限公司 | Resistance type liquid level detection system |
| CN114525655A (en) * | 2022-02-17 | 2022-05-24 | 珠海格力电器股份有限公司 | Liquid level detection device of detergent box, control method and washing machine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |