CN201787996U - Measuring probe of oil-water interface measuring instrument - Google Patents
Measuring probe of oil-water interface measuring instrument Download PDFInfo
- Publication number
- CN201787996U CN201787996U CN2010202630101U CN201020263010U CN201787996U CN 201787996 U CN201787996 U CN 201787996U CN 2010202630101 U CN2010202630101 U CN 2010202630101U CN 201020263010 U CN201020263010 U CN 201020263010U CN 201787996 U CN201787996 U CN 201787996U
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- measuring instrument
- oil
- measuring
- microprocessor
- conversion module
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Abstract
The utility model discloses a measuring probe of an oil-water interface measuring instrument. A digital-to-analog conversion module, a sensor and a microprocessor are arranged in an enclosed casing which is connected with a measuring scale of the measuring instrument, an output end of the digital-to-analog conversion module is connected with an input end of the microprocessor, and a serial interface of the microprocessor is connected with a measuring instrument body via an internal lead of the measuring scale. The measuring probe further comprises a detection module which is arranged in the casing, the bottom end of the casing is divided into two cavities by a groove arranged at the bottom end, the sensor includes an ultrasonic generator and an ultrasonic receiver which are respectively arranged in the two cavities of the bottom end of the casing, an output end of the ultrasonic receiver is connected to an input end of the detection module, and an output end of the detection module is connected to an input end of the digital-to-analog conversion module. The measuring probe can recognize air, oil and water medium easily, and increases measurement precision and reliability of the oil-water interface measuring instrument effectively.
Description
Technical field
The utility model relates to measuring sonde, relates in particular to a kind of measuring sonde of water-oil interface measuring instrument
Background technology
The water-oil interface measuring instrument is a kind of pasta in boats and ships oil storage chamber, cabinet and the dirty oil tank that is widely used in, the measurement of the water surface and its temperature, and this instrument is applicable to that also other occasion needs water-oil interface and thermometric occasion.General water-oil interface measuring instrument all is by the detection instrument body, and dip stick and measuring sonde are formed.General measure is popped one's head in by the capacitor of two fixed poles compositions and is located at the interior temperature element (TE) of probe as survey sensor, and capacitor utilizes air, the oil principle different with the water specific inductive capacity to distinguish different liquid levels and survey.The measurement data of survey sensor is input microprocessor after signal condition, analog to digital conversion, and measurement data shows after importing the measuring instrument body into by serial line interface after the microprocessor processes.This kind probe in actual applications because oil reservoir is always on the upper strata, when this probe when arriving the profit interface behind oil reservoir, coated oil film on the probe, the change in dielectric constant of electric capacity is little, even cannot distinguish water-oil interface sometimes, has had a strong impact on the measuring accuracy of water-oil interface measuring instruments.Temperature sensor was installed on the top of probing shell during some was popped one's head in addition, and when probe sensed oil, this temperature sensor was also in air, must be when probe be deep in the oil fully, the temperature that could reflect oil, when probe sensed water, the temperature that may reflect was the oil temperature equally.This is a bigger defective.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of measuring sonde of water-oil interface measuring instrument, and this probe is distinguished easily air, and oil and aqueous medium have effectively improved the detection accuracy and the reliability of water-oil interface measuring instruments, have avoided thermometric defective.
For solving the problems of the technologies described above, the measuring sonde of the utility model water-oil interface measuring instrument comprises the closed shell that is connected with the dip stick of measuring instrument, analog-to-digital conversion module, sensor and microprocessor, described analog-to-digital conversion module and microprocessor are located in the described housing, the output terminal of described analog-to-digital conversion module connects the input end of described microprocessor, the serial line interface of described microprocessor connects the measuring instrument body by the inner conductors of dip stick, this probe also comprises the detection module, described detection module is located in the described housing, described housing bottom is provided with groove and the housing bottom is divided into two cavitys, described sensor comprises ultrasonic generator and ultrasonic receiver and is located at respectively in two cavitys of housing bottom, the output terminal of described ultrasonic receiver connects the input end of described detection module, and the output terminal of described detection module connects the input end of described analog-to-digital conversion module.
For further improving the measuring accuracy of water-oil interface measuring instrument, the sensor also comprises two electric pole type water level probes and detector unit, described detector unit is located in the electric pole type water level probe, described housing bottom vertically and perpendicular grooves be provided with the circular arc concave surface, described two electric pole type water level probes are located at described housing bottom and are stretched out the circular arc concave surface of housing bottom at interval respectively by pedestal, and the signal output part of described two electric pole type water level probes and detector unit is connected the input end of described analog-to-digital conversion module.
Because the measuring sonde of the utility model water-oil interface measuring instrument has adopted technique scheme, promptly with closed shell that the dip stick of measuring instrument is connected in analog-to-digital conversion module is set, sensor and microprocessor, the output terminal of analog-to-digital conversion module connects the input end of microprocessor, the serial line interface of microprocessor connects the measuring instrument body by the inner conductors of dip stick, this probe also comprises the detection module, the detection module is located in the housing, the housing bottom is provided with groove and the housing bottom is divided into two cavitys, sensor comprises ultrasonic generator and ultrasonic receiver and is located at respectively in two cavitys of housing bottom, the output terminal of ultrasonic receiver connects the input end of detection module, and the output terminal of detection module connects the input end of analog-to-digital conversion module.This probe is distinguished easily air, and oil and aqueous medium have effectively improved the detection accuracy and the reliability of water-oil interface measuring instruments.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the utility model water-oil interface measuring instrument measuring sonde,
Fig. 2 is the side view of Fig. 1,
Fig. 3 is the structural representation of this measuring sonde bottom,
Fig. 4 is the electrical principle block diagram of the utility model water-oil interface measuring instrument measuring sonde,
Fig. 5 is the work synoptic diagram of the utility model water-oil interface measuring instrument measuring sonde.
Embodiment
As shown in Figures 1 to 4, the measuring sonde of the utility model water-oil interface measuring instrument comprises the closed shell 1 that is connected with the dip stick 11 of measuring instrument, analog-to-digital conversion module 5, sensor and microprocessor 4, described analog-to-digital conversion module 5 and microprocessor 4 are located in the described housing 1, the output terminal of described analog-to-digital conversion module 5 connects the input end of described microprocessor 4, the serial line interface of described microprocessor 4 connects the measuring instrument body by the inner conductors of dip stick 11, this probe also comprises detection module 6, described detection module 6 is located in the described housing 1, described housing 1 bottom is provided with groove 12 and housing 1 bottom is divided into two cavitys 13, described sensor comprises ultrasonic generator 2 and ultrasonic receiver 3 and is located at respectively in two cavitys 13 of housing 1 bottom, the output terminal of described ultrasonic receiver 3 connects the input end of described detection module 6, and the output terminal of described detection module 6 connects the input end of described analog-to-digital conversion module 5.
For further improving the measuring accuracy of water-oil interface measuring instrument, the sensor also comprises two electric pole type water level probes 7 and detector unit 8, described detector unit 8 is located in the electric pole type water level probe, described housing 1 bottom vertically and perpendicular grooves 12 be provided with circular arc concave surface 15, described two electric pole type water level probes 7 are located at described housing 1 bottom and are stretched out the circular arc concave surface 15 of housing bottom at interval respectively by pedestal 14, and described two electric pole type water level probes 7 are connected the input end of described analog-to-digital conversion module 5 with the signal output part of detector unit 8.
As shown in Figure 5, the ultrasonic generator of these 10 sensors of popping one's head in and ultrasonic receiver are placed in two cavitys of housing bottom, when probe 10 does not insert oil 22 or water 23 media, probe 10 is positioned at air 21 media, medium between two cavitys in housing bottom is an air, ultrasonic receiver is subjected to air to intercept the signal that can't receive ultrasonic generator, and when probe 10 inserts oil 22 or water 23 media, medium between two cavitys in housing bottom is oil 22 or water 23, difference according to medium, ultrasonic receiver receives the different ultrasonic signal of ultrasonic generator, the output signal of ultrasonic receiver is handled through the identification of detection module, analog-to-digital conversion module conversion back input microprocessor, microprocessor import the data that detect into measuring instrument 20 bodies by serial line interface and are correspondingly processed and show.
Ultrasonic generator and ultrasonic receiver adopt the high-frequency ultrasonic of 2GHz and are divided in two cavitys in this probe, the characteristic of utilizing high-frequency ultrasonic in air, can not propagate, and the decay of in different medium, the conducting characteristic different with frequency, distinguish probe at air, diverse location in oil and the water, the height of accurate, reliable measurements oil-yielding stratum and water layer.This probe adopts the integrated chip of high performance microprocessor, analog to digital conversion and detection, all measuring-signal carries out pre-service in microprocessor, and convert digital quantity to and deliver to the oil water interface detector body by serial line interface, improved measuring accuracy and reliability.
Two electric pole type water level probes that are provided with in this probe, and in a probe, detector unit is installed, the subsidiary means as distinguishing water-oil interface can be used for measuring the profit liquid level, make the differentiation water-oil interface more accurate; Detector unit is installed in the probe and is positioned at foremost, when probe one touches oil or water, just can reflect the temperature of oil or water, the defective of having avoided traditional probe temperature to detect.
Claims (2)
1. the measuring sonde of a water-oil interface measuring instrument, comprise the closed shell that is connected with the dip stick of measuring instrument, analog-to-digital conversion module, sensor and microprocessor, described analog-to-digital conversion module and microprocessor are located in the described housing, the output terminal of described analog-to-digital conversion module connects the input end of described microprocessor, the serial line interface of described microprocessor connects the measuring instrument body by the inner conductors of dip stick, it is characterized in that: also comprise the detection module, described detection module is located in the described housing, described housing bottom is provided with groove and the housing bottom is divided into two cavitys, described sensor comprises ultrasonic generator and ultrasonic receiver and is located at respectively in two cavitys of housing bottom, the output terminal of described ultrasonic receiver connects the input end of described detection module, and the output terminal of described detection module connects the input end of described analog-to-digital conversion module.
2. the measuring sonde of water-oil interface measuring instrument according to claim 1, it is characterized in that: described sensor also comprises two electric pole type water level probes and detector unit, described detector unit is located in the electric pole type water level probe, described housing bottom vertically and perpendicular grooves be provided with the circular arc concave surface, described two electric pole type water level probes are located at described housing bottom and are stretched out the circular arc concave surface of housing bottom at interval respectively by pedestal, and the signal output part of described two electric pole type water level probes and detector unit is connected the input end of described analog-to-digital conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202630101U CN201787996U (en) | 2010-07-19 | 2010-07-19 | Measuring probe of oil-water interface measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202630101U CN201787996U (en) | 2010-07-19 | 2010-07-19 | Measuring probe of oil-water interface measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787996U true CN201787996U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202630101U Expired - Fee Related CN201787996U (en) | 2010-07-19 | 2010-07-19 | Measuring probe of oil-water interface measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103031A (en) * | 2020-01-02 | 2020-05-05 | 北京瑞赛长城航空测控技术有限公司 | Intrinsic safety type oil-water interface detection probe |
| CN113358190A (en) * | 2021-05-31 | 2021-09-07 | 天水华天传感器有限公司 | Water alarm liquid level transmitter |
-
2010
- 2010-07-19 CN CN2010202630101U patent/CN201787996U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103031A (en) * | 2020-01-02 | 2020-05-05 | 北京瑞赛长城航空测控技术有限公司 | Intrinsic safety type oil-water interface detection probe |
| CN113358190A (en) * | 2021-05-31 | 2021-09-07 | 天水华天传感器有限公司 | Water alarm liquid level transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20140719 |
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| EXPY | Termination of patent right or utility model |