CN1394772A - Vehicle and ship lubricating oil real time detection method and its device - Google Patents
Vehicle and ship lubricating oil real time detection method and its device Download PDFInfo
- Publication number
- CN1394772A CN1394772A CN 01113267 CN01113267A CN1394772A CN 1394772 A CN1394772 A CN 1394772A CN 01113267 CN01113267 CN 01113267 CN 01113267 A CN01113267 A CN 01113267A CN 1394772 A CN1394772 A CN 1394772A
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- voltage
- lubricating oil
- frequency
- vehicle
- ship
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention relates to a real-time detection method of lubricating oil for vehicle and ship and its detection equipment. It is characterized by that a capacitance transducer can be placed into the lubricating oil for vehicle and ship, two electrodes of the capacitance transducer are respectively connected with current meter or capacity meter and varying-voltage frequency converter, and a voltage meter is parallel-connected between two electodes of the capacitance transducer, and the change of voltage and frequency of the varying-voltage frequency converter is controlled by a control device. Said conrol device can make the varying-voltage frequency converter voltage or frequency produce change to measure changed values of current, voltage or capacitance to obtain additive consumption.
Description
Technical field
A kind of lubricating oil for vehicle and ship real-time detection method and device belong to the electric measurement field.
Background technology
General machine and engine installation, all need use a large amount of lubricating oils, to reduce friction, abrasion and increasing work efficiency, still, along with the increase of machine or engine installation work-hours, lubricating oil will progressively lose original performance, lubricant effect to machine is progressively lost, and continues to use the lubricating oil that loses lubricant effect again, will have a strong impact on service life of a machine, reduce work efficiency, but, in the operational process of machine or engine installation, be the running condition that can not in time not know lubricating oil, present existing real-time detection lubricating oil method, quite complicated, need to use multiple precision instrument, not only consuming time, and expense is huge, as in Britain, make one time analysis of oil, need 100 pounds, so adopt the way of periodic replacement lubricating oil usually, prevent the lubricating oil inefficacy and damage machine and engine installation.
Summary of the invention
All contain various additives in the general lubricating oil, play lubricating effect by additive, in machine run, additive will progressively disappear, lubricants performance also just will progressively degenerate, in addition, lubricating oil at high temperature and with the long-term contact process of air in, oxidation can progressively take place, the result of oxidation, also make tears lubricating oil degradation, in order to solve car, ship is in operational process, and whether the lubricant effect of lubricating oil lost efficacy, the present invention is positioned in the lubricating oil for vehicle and ship with a capacitive transducer, two electrodes of capacitive transducer are connected with variable-frequency transformer with amperemeter/ammtr or C meter respectively, and at the two poles of the earth of capacitive transducer volt meter in parallel, varying-voltage frequency converter is controlled the variation of its voltage or frequency by a control setup, this control setup makes the voltage or the frequency change of variable-frequency transformer, measures the electric weight (electric current of capacitive transducer, voltage or electric capacity) changing value, just obtain the state of performance in the lubricating oil use; The present invention can measure the lubricants performance in the use accurately, in real time, and equipment is simple, and structure is small and exquisite, can be installed in most of machine.
Description of drawings
Accompanying drawing 1 is a circuit block diagram of the present invention.
Accompanying drawing 2 is the present invention when detecting new lubricating oil, on voltage that applies in the circuit and the capacitive transducer
Voltage curve.
Accompanying drawing 3 is the present invention when detecting the lubricating oil that makes bright mistake, and voltage that applies in the circuit and electric capacity pass
Voltage curve on the sensor.
The specific embodiment
Because of the additive that contains in the lubricating oil, a polar bond is often arranged, and negative polarity normally; Ionization can take place after the oil ageing, behind the chemical reaction of complexity, make and have various ions in the lubricating oil, these ions are all charged, can be detected by various electrical measurement measuring devices, the present invention adopts these ions of capacitance measurement, just can detect additive-treated oil reduction in the lubricating oil behind simple data handing, and the order of severity of oil ageing;
See also accompanying drawing 1 circuit block diagram of the present invention, one capacitive transducer is positioned in the lubricating oil for vehicle and ship, two electrodes of capacitive transducer, be connected with variable-frequency transformer with amperemeter/ammtr or C meter respectively, and at the two poles of the earth of capacitive transducer volt meter in parallel, varying-voltage frequency converter is controlled the variation of its voltage or frequency by a control setup, this control setup makes the voltage or the frequency change of variable-frequency transformer, measure electric weight (electric current, voltage or the electric capacity) changing value of capacitive transducer, just obtain the state of performance in the lubricating oil use; One power supply can be direct current or alternating current, through frequency conversion, behind the voltage transformer, put on the capacitive transducer, voltage that every variation once applies or frequency, survey No. one time on the capacitive transducer voltage (by and volt meter on capacitive transducer read) or electric current, electric capacity (reading at current in loop table or C meter) by string, just can draw a curve, when the present invention detects new lubricating oil as shown in Figure 2, voltage that applies in the circuit and the voltage curve on the capacitive transducer, as seen electric weight (the voltage on the capacitive transducer, electric current or electric capacity), linear the increasing with the rising of voltage that applies in the circuit or frequency, formation has a constant slope K
0Straight line; Measure used lubricating oil, identical with abovementioned steps, because the additive-treated oil conductivity water temperature and depth is different with the conductivity water temperature and depth that oil ageing is produced in the lubricating oil, so obtain having the straight line 1 and the straight line 2 of two slopes, as shown in Figure 3, its slope is respectively K
1, K
2, K
1Reflected the quantity of rest additive in the lubricating oil, K
2Reflected the oil ageing situation, K
0-K
1, for additive-treated oil in the lubricating oil reduces, K
2-K
1, be the oil ageing degree.
Claims (2)
1, a kind of lubricating oil for vehicle and ship real-time detection method and device, it is characterized in that: a capacitive transducer is positioned in the lubricating oil for vehicle and ship, two electrodes of capacitive transducer, be connected with variable-frequency transformer with amperemeter/ammtr or C meter respectively, and at the two poles of the earth of capacitive transducer volt meter in parallel, varying-voltage frequency converter is controlled the variation of its voltage or frequency by a control setup, this control setup makes the voltage or the frequency change of variable-frequency transformer, measure electric weight (electric current, voltage or the electric capacity) changing value of capacitive transducer, just obtain the state of performance in the lubricating oil use.
2, a kind of lubricating oil for vehicle and ship real-time detection method and device is characterized in that: lubricating oil for vehicle and ship is detected step in real time is:
A, variable-frequency variable-voltage control setup increase voltage or the frequency in the circuit, measure the electric weight (electric current, voltage or electric capacity) of capacitive transducer, linear the increasing with the rising of voltage in the circuit or frequency, and to unworn lubricating oil, the slope of this linear relationship is K
0
B, identical with the method for measurement of a, measure the lubricating oil in the use, draw two slope K
1, K
2
C, K
0-K
1Be the reduction of lubricant additive, K
2-K
1Be oil ageing
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113267 CN1394772A (en) | 2001-07-05 | 2001-07-05 | Vehicle and ship lubricating oil real time detection method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113267 CN1394772A (en) | 2001-07-05 | 2001-07-05 | Vehicle and ship lubricating oil real time detection method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1394772A true CN1394772A (en) | 2003-02-05 |
Family
ID=4660002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01113267 Pending CN1394772A (en) | 2001-07-05 | 2001-07-05 | Vehicle and ship lubricating oil real time detection method and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1394772A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458429C (en) * | 2004-09-17 | 2009-02-04 | 都灵无线基金会 | A multi-frequency capacitive measurement device and a methodof operating the same |
| CN102667461A (en) * | 2009-11-25 | 2012-09-12 | 出光兴产株式会社 | Method and device for measuring deterioration and deterioration degree of lubricating oil |
| CN110758052A (en) * | 2019-10-31 | 2020-02-07 | 广东美的制冷设备有限公司 | Drive control method and device, air conditioning equipment, vehicle and storage medium |
| CN111380927A (en) * | 2018-12-29 | 2020-07-07 | 北京致感致联科技有限公司 | Online grease detection sensor and detection method |
-
2001
- 2001-07-05 CN CN 01113267 patent/CN1394772A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458429C (en) * | 2004-09-17 | 2009-02-04 | 都灵无线基金会 | A multi-frequency capacitive measurement device and a methodof operating the same |
| CN102667461A (en) * | 2009-11-25 | 2012-09-12 | 出光兴产株式会社 | Method and device for measuring deterioration and deterioration degree of lubricating oil |
| CN102667461B (en) * | 2009-11-25 | 2016-01-06 | 出光兴产株式会社 | Method and device for measuring deterioration and deterioration degree of lubricating oil |
| CN111380927A (en) * | 2018-12-29 | 2020-07-07 | 北京致感致联科技有限公司 | Online grease detection sensor and detection method |
| CN110758052A (en) * | 2019-10-31 | 2020-02-07 | 广东美的制冷设备有限公司 | Drive control method and device, air conditioning equipment, vehicle and storage medium |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |