CN200979437Y - An oil measuring ruler with a resistance measuring device - Google Patents
An oil measuring ruler with a resistance measuring device Download PDFInfo
- Publication number
- CN200979437Y CN200979437Y CN 200620011803 CN200620011803U CN200979437Y CN 200979437 Y CN200979437 Y CN 200979437Y CN 200620011803 CN200620011803 CN 200620011803 CN 200620011803 U CN200620011803 U CN 200620011803U CN 200979437 Y CN200979437 Y CN 200979437Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- ullage rule
- main body
- steel ruler
- 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
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to an oil dip rod, in particular to an oil dip rod with a resistance measuring device. The technique scheme is that, the utility model comprises a main body (6) of the oil dip rod, a steel ruler belt (3), a weight (1) and a handle (4), wherein the handle is fixed with the main body (6) of the oil dip rod which is wound with the steel ruler belt (3), the end of the steel ruler belt is connected with the weight (1), and an inner circuit (5) and a clip (2) for measuring resistance are arranged on the main body (6) of the oil dip rod to judge whether the weight contacts the bottom water of oil jug. The utility model has the advantages that, the steel ruler belt is connected with one end of the circuit, the measuring clip is connected to the other end of the circuit through directing line, and the operation of measuring bottom water can be finished by one people, thereby solving the problem that the finish of the operation needs at least two people ever before.
Description
One, technical field:
The utility model relates to a kind of ullage rule, particularly relates to a kind of ullage rule that has electric resistance measuring apparatus.
Two, background technology:
Existing ullage rule all is to use the end water that shows in water cream or multimeter (measuring resistance function) the multiple measurement oil tank when measuring at the bottom of the oil tank water, use multimeter to survey end water, just be to use the function of multimeter measuring resistance, when at the bottom of the ullage rule contact oil tank during water, because unpurified water conducts electricity, so the resistance between ullage rule and the tank skin can reduce, by observing resistance variations, can know whether the ullage rule weight runs into water layer, but the problem that exists is to use apparent water cream a people to operate, but wastes time and energy; Use the necessary 's compounding practice of multimeter.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and providing a kind of does not need two people's operations, but the ullage rule that has electric resistance measuring apparatus that people promptly can complete operation.
Its technical scheme is: be made up of ullage rule main body (6), steel ruler band (3), weight (1) and handle (4), wherein, fixed amount dipstick main body (6) on the handle, be wound with steel ruler band (3) on the ullage rule main body, and the end of steel ruler band connects weight (1), on described ullage rule main body (6), be provided with the internal circuit and the clip (2) of measuring resistance, be used for judging whether weight touches water at the bottom of the oil tank.
A kind of technical scheme is: described internal circuit is made up of four voltage comparators, when detecting dielectric resistance and change, four voltage comparators of metering circuit will be the voltage ratio of measuring-signal and setting, reach setting value and will overturn and drive light emitting diode and light, thereby express the resistance change of defeated test side.
A kind of technical scheme is: the test side of described internal circuit connects NE5532 double operational circuit, and voltage signal after treatment imports digital watch into and shows, thereby expresses the resistance change of test side.
Another kind of technical scheme is: the test side of described internal circuit connects the amplifying circuit amplification that NE5532 double operational circuit constitutes, and the promotion specification is that the moving-coil gauge outfit of 10mA shows resistance change.
The beneficial effects of the utility model are: the steel ruler band links to each other with circuit one end, measures clip and receives this energy loop of the other end by lead, a people is finished measure end water operation, must be by the problem of two people's complete operations before having solved.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Five, embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
Embodiment 1: be made up of ullage rule main body 6, steel ruler band 3, weight 1 and handle 4, wherein, fixed amount dipstick main body 6 on the handle, be wound with steel ruler band 3 on the ullage rule main body, and the end of steel ruler band connects weight 1, is provided with battery case in the handle outside, is used for packed battery, on described ullage rule main body 6, be provided with the internal circuit 5 and the clip 2 of measuring resistance, be used for judging whether weight touches water at the bottom of the oil tank.Described internal circuit is by detecting: clip-dip hatch-oil tank storage medium-ullage rule weight forms electric resistance in circuit and changes and measure weight and run into end water, writes down the scale that ullage rule shows, thereby extrapolates the height of end water.
Internal circuit is meant by power supply and powers up to ullage rule through resistance R 13 that when ullage rule contacted with the emulsion of water or conduction, the current potential at R13 two ends can descend.The electric potential signal of this variation is passed to four operational amplification circuits respectively and is carried out voltage ratio.Comparator circuit is made of two NE5532.R1 R2 R3 R4 R5 R6 R7 R8 be that four high guaily unit is set comparative voltage.When the input end current potential reduces (representing that promptly ullage rule contact oil water mixture resistance reduces), four voltage comparators can be because of reaching setting value separately, and order upset, four light emitting diodes (LED) thus also light the resistance change of expressing input end with regard to order.
Embodiment 2: the circuit part explanation: ullage rule and circuit input end join, and apply certain potentials by power supply through current-limiting resistance R6 and give ullage rule.When the ullage rule weight contacts with wet oil, can be because of the resistance difference, changing appears in current potential.The current potential that changes imports the NE5532 circuit into.NE5532 double operational circuit is connected into ratio amplifying circuit and voltage follower in this circuit.Voltage signal after treatment imports digital watch into and shows.We can clearly know the profit resistance variations according to the display digit size, and definite water-oil interface layer position, thereby read oily accurately thick.The enlargement factor of R1, R2 decision scale operation amplifying circuit can be adjusted, so that maximum input voltage is no more than the desired 2mv of digital watch in the circuit.
Embodiment 3: the circuit part explanation: ullage rule and circuit input end join, and apply certain potentials by power supply through current-limiting resistance and give ullage rule.When the ullage rule weight contacts with wet oil, can be because of the resistance difference, changing appears in current potential.The current potential that changes imports circuit into, constitutes amplifying circuit through double operational circuit NE5532 and amplifies, and promoting specification is the moving-coil gauge outfit demonstration resistance change of 10mA, thereby infers water-oil interface.R1 is the enlargement factor of feedback resistance and adjustable resistance R2 decision-making circuit, regulates R2 resistance, and fine-tuning circuit output current value makes gauge outfit completely inclined to one side.
During use, measuring clip and ullage rule weight is two measuring heads of circuit, and the steel ruler band links to each other with circuit one end in inside, measures clip and receives the other end by lead.Measure clip during use at dip hatch (hardware), the steel ruler band puts down slowly at the dip hatch center, when weight touches oil product, oil product is nonconducting, when weight touches water layer, circuit produces action because of input pickup resistance changes, and expresses resistance variations by above-mentioned 3 kinds of embodiment, whether arrives water layer thereby can judge.
Claims (4)
1, a kind of ullage rule that has electric resistance measuring apparatus, form by ullage rule main body (6), steel ruler band (3), weight (1) and handle (4), wherein, fixed amount dipstick main body (6) on the handle, be wound with steel ruler band (3) on the ullage rule main body, and the end of steel ruler band connects weight (1), it is characterized in that: be provided with the internal circuit (5) and the clip (2) of measuring resistance on described ullage rule main body (6), be used for judging whether weight touches water at the bottom of the oil tank.
2, the ullage rule that has electric resistance measuring apparatus according to claim 1, it is characterized in that: described internal circuit is made up of four voltage comparators, when detecting dielectric resistance and change, four voltage comparators of metering circuit will be the voltage ratio of measuring-signal and setting, reach setting value and will overturn and drive light emitting diode and light, thereby express the resistance change of defeated test side.
3, the ullage rule that has electric resistance measuring apparatus according to claim 1, it is characterized in that: the test side of described internal circuit connects NE5532 double operational circuit, voltage signal after treatment imports digital watch into and shows, thereby expresses the resistance change of test side.
4, the ullage rule that has electric resistance measuring apparatus according to claim 1 is characterized in that: the test side of described internal circuit connects the amplifying circuit amplification that NE5532 double operational circuit constitutes, and promoting specification is the moving-coil gauge outfit demonstration resistance change of 10mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620011803 CN200979437Y (en) | 2006-11-18 | 2006-11-18 | An oil measuring ruler with a resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620011803 CN200979437Y (en) | 2006-11-18 | 2006-11-18 | An oil measuring ruler with a resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200979437Y true CN200979437Y (en) | 2007-11-21 |
Family
ID=38979818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620011803 Expired - Fee Related CN200979437Y (en) | 2006-11-18 | 2006-11-18 | An oil measuring ruler with a resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200979437Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768185A (en) * | 2016-12-14 | 2017-05-31 | 金陵科技学院 | Oil tank Interface detection device and method based on ultrasonic velocity and liquid medium resistance |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
-
2006
- 2006-11-18 CN CN 200620011803 patent/CN200979437Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768185A (en) * | 2016-12-14 | 2017-05-31 | 金陵科技学院 | Oil tank Interface detection device and method based on ultrasonic velocity and liquid medium resistance |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN107941305B (en) * | 2017-11-16 | 2019-10-18 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102279316B (en) | Sensor for measuring resistivity of natural gas hydrate in porous medium | |
| CN104198949A (en) | Battery health state detection method | |
| CN103196358A (en) | Plastic thickness measuring device based on plane capacitive sensor and method thereof | |
| CN200979437Y (en) | An oil measuring ruler with a resistance measuring device | |
| CN211528169U (en) | Early warning system for environmental corrosion state | |
| CN202969075U (en) | Detergent residue detection and display system for washing machine | |
| CN203672961U (en) | Broadband 0-200Hz current detection circuit | |
| CN204881767U (en) | Measure device and car of fuel liquid level | |
| CN204165615U (en) | A kind of device of accurate measurement metal bath surface potential difference | |
| CN204388790U (en) | A kind of intelligent fish device | |
| CN206056515U (en) | A kind of high accuracy contact thickness plane degree measuring instrument | |
| CN202854215U (en) | Inductive test pencil based on six-inverter integrated circuit | |
| CN204831462U (en) | Canning crude oil oil -water interface measuring apparatu | |
| CN204060855U (en) | A kind of oil level gauge of engine | |
| CN203299277U (en) | Low energy resistance measuring device | |
| CN205861597U (en) | The accuracy detection device of transmission line of electricity filth on-line computing model | |
| CN203275581U (en) | Portable insulation strength tester | |
| CN206208882U (en) | A kind of water examination assembling instrument | |
| CN204883402U (en) | Liquid level monitor control device of car tank wagon | |
| CN105090751A (en) | Self-sufficient type oil conveying pipe water content detection and control system | |
| CN204902888U (en) | Fluid characteristic detector | |
| CN205228586U (en) | A device for electricity survey ground water level | |
| CN203414554U (en) | Volume-adjustable circuit on and off testing device | |
| CN204302379U (en) | A kind of electrical network electrode resistance rate measuring appliance | |
| CN202057389U (en) | Digital meter |
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 |