CN102865856A - Dip angle sensor - Google Patents
Dip angle sensor Download PDFInfo
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- CN102865856A CN102865856A CN 201210333944 CN201210333944A CN102865856A CN 102865856 A CN102865856 A CN 102865856A CN 201210333944 CN201210333944 CN 201210333944 CN 201210333944 A CN201210333944 A CN 201210333944A CN 102865856 A CN102865856 A CN 102865856A
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- container
- liquid
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- dip angle
- obliquity sensor
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Abstract
The invention relates to a dip angle sensor which mainly comprises a container, liquid in the container, a floater device, an air filter, a position sensor and the like. When the dip angle sensor is in a horizontal state, the output electric signal of the position sensor is calibrated; when the dip angle sensor is inclined, the liquid level of the liquid in the container is changed along with the change of the dip angle of the dip angle sensor; and meanwhile, the height of a floater on the liquid surface is changed, the output electric signal of the position sensor on the dip angle sensor is also changed along with the change of the height of the floater, and then the dip angle can be worked out according to the corresponding relationship between the dip angle and the output electric signal.
Description
Technical field
The present invention relates to a kind of obliquity sensor, is a kind of change of pitch angle amount that can be used for measuring the relative level face, can also as switch of inclination, belong to sensor field.
Background technology
The obliquity sensor of present industrial application can be divided into " solid pendulum " formula, " liquid pendulum " formula, " gas pendulum " three kinds of obliquity sensors on principle of work.Theoretical foundation is exactly Newton second law, and according to basic physical principle, an internal system, speed can't be measured, but can measure its acceleration.If initial velocity is known, just can goes out linear velocity by integral and calculating, and then can calculate straight-line displacement.So it is a kind of acceleration transducer that uses principle of inertia in fact, namely side and vertical direction do not have the acceleration effect when obliquity sensor is static, act on so the acceleration of gravity that only has above it.Angle between gravity Z-axis and the acceleration transducer sensitive axis has been exactly the pitch angle.Along with the development of silicon micro mechanical sensor measuring technique, the inertia sensing device becomes the most successful in the past few years, one of most widely used mems device, and micro-acceleration gauge is exactly the outstanding representative of inertia sensing device.Use as the most ripe inertial sensor, present MEMS acceleration is in respect of very high integrated level, and namely sensor-based system and interface circuit are integrated on the chip.The sensor precision is higher, but cost is also higher.
Summary of the invention
The present invention is intended to adopt a kind of easy, economic method to design a kind of obliquity sensor, but the heeling condition of this kind sensor measuring vehicle etc., for control system provides electric signal.
Such as Fig. 1, long in the bottom surface is A, and wide is height to be housed in the rectangular vessel of B be the liquid of h, and take a base as rotating shaft, it is trapezoidal making container lean and keeping the cross section of liquid, and the angle of inclination is α, and liquid height becomes H, as shown in Figure 2.If a trapezoidal minor face is χ, according to the sectional area constant condition of liquid before and after tilting, can get
A * h=(χ+χ+a * tan α)/2; Solve χ=h-A/2 * tan α
Because H=A * sin α+χ * sin (90-α) is for people χ=h-A/2 * tan α
Get H=h * cos α+A/2 * sin α
=
This shows, as make angle
, can realize that liquid level H changes and monotone variation with tilt angle alpha.
Schematic diagram when Fig. 1 container is in horizontality.
Schematic diagram when Fig. 2 container is in heeling condition.
Specific embodiment
Fig. 3 is the legend of single volume receptacle obliquity sensor when horizontality.
Fig. 4 is the legend of single volume receptacle obliquity sensor when heeling condition.
The another kind of obliquity sensor of embodiment 2 for inventing on basic model obliquity sensor basis, it mainly is comprised of container 6, liquid 7, ball cock device 8, position transducer 9.Its container is compound volume receptacle, the container of its sensor receiving fluids is the clad vessel that two or more single containers form, interconnected with communicating pipe between each container, the latus rectum that changes communicating pipe can change the float height change to the time of the response of change of pitch angle, the output electrical signals of calibration position sensor when the obliquity sensor horizontality, when the obliquity sensor run-off the straight, liquid levels height in the float chamber can change with the variation at the inclination angle of obliquity sensor, float height on the liquid level also changes simultaneously, the output electrical signals of the position transducer on the obliquity sensor also can change with the variation of float height, then just can obtain the angle at inclination angle according to the corresponding relation of inclination angle and output electrical signals.
Fig. 5 is the legend of compound volume receptacle obliquity sensor when horizontality.
Fig. 6 is the legend of compound volume receptacle obliquity sensor when heeling condition.
Claims (5)
1. an obliquity sensor mainly comprises container, liquid, ball cock device and position transducer.
2. such as claim 1 described obliquity sensor, it is characterized in that: in the container liquid is housed, float floats on liquid, is connected with position transducer on the float.
3. such as claim 2 described obliquity sensors, it is characterized in that: when the sensor run-off the straight, liquid level in its container raises or reduces, and the float on the liquid raises or reduction with the height of liquid level, thereby the output signal of connected position transducer is changed.
4. such as the container in the claim 1 described obliquity sensor, its shape can be the container of the single volume such as cylindrical, square, can also be the clad vessel that has several single containers to be communicated with by conduit.
5. such as claim 1 described obliquity sensor, the position transducer on it also can be position switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210333944 CN102865856A (en) | 2012-09-11 | 2012-09-11 | Dip angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210333944 CN102865856A (en) | 2012-09-11 | 2012-09-11 | Dip angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865856A true CN102865856A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210333944 Pending CN102865856A (en) | 2012-09-11 | 2012-09-11 | Dip angle sensor |
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| Country | Link |
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| CN (1) | CN102865856A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063184A (en) * | 2017-06-06 | 2017-08-18 | 中国地质大学（武汉） | A kind of conductance type obliquity sensor for landslide monitoring |
| CN107131870A (en) * | 2017-05-31 | 2017-09-05 | 深圳大学 | A kind of liquid suspension formula obliquity sensor |
| CN109900194A (en) * | 2019-03-06 | 2019-06-18 | 河海大学 | A kind of monitoring device of Beidou positioning surface displacement |
| CN110986883A (en) * | 2019-12-31 | 2020-04-10 | 三一重机有限公司 | Inclination angle detection device and inclination angle detection method |
| CN111249550A (en) * | 2016-09-22 | 2020-06-09 | 美德乐控股公司 | Breast shield unit |
-
2012
- 2012-09-11 CN CN 201210333944 patent/CN102865856A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249550A (en) * | 2016-09-22 | 2020-06-09 | 美德乐控股公司 | Breast shield unit |
| CN111249550B (en) * | 2016-09-22 | 2022-09-16 | 美德乐控股公司 | Breast shield unit |
| US11957818B2 (en) | 2016-09-22 | 2024-04-16 | Medela Holding Ag | Breast shield unit |
| CN107131870A (en) * | 2017-05-31 | 2017-09-05 | 深圳大学 | A kind of liquid suspension formula obliquity sensor |
| CN107063184A (en) * | 2017-06-06 | 2017-08-18 | 中国地质大学（武汉） | A kind of conductance type obliquity sensor for landslide monitoring |
| CN109900194A (en) * | 2019-03-06 | 2019-06-18 | 河海大学 | A kind of monitoring device of Beidou positioning surface displacement |
| CN110986883A (en) * | 2019-12-31 | 2020-04-10 | 三一重机有限公司 | Inclination angle detection device and inclination angle detection method |
| CN110986883B (en) * | 2019-12-31 | 2022-03-01 | 三一重机有限公司 | Inclination angle detection device and inclination angle detection method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |
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| WD01 | Invention patent application deemed withdrawn after publication |