CN203364757U - Tiny inclination angle detection apparatus - Google Patents

Tiny inclination angle detection apparatus Download PDF

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Publication number
CN203364757U
CN203364757U CN 201320224960 CN201320224960U CN203364757U CN 203364757 U CN203364757 U CN 203364757U CN 201320224960 CN201320224960 CN 201320224960 CN 201320224960 U CN201320224960 U CN 201320224960U CN 203364757 U CN203364757 U CN 203364757U
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CN
China
Prior art keywords
module
inclination angle
electric capacity
microprocessor
capacity data
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
Application number
CN 201320224960
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Chinese (zh)
Inventor
曾悠兵
王明元
杨连春
余海盛
张新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiujiang Precision Measuring Technology Research Institute
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Jiujiang Precision Measuring Technology Research Institute
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Priority to CN 201320224960 priority Critical patent/CN203364757U/en
Application granted granted Critical
Publication of CN203364757U publication Critical patent/CN203364757U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

A tiny inclination angle detection apparatus comprises a power supply module, a sensor module, a capacitive digital conversion module, a microprocessor module and a display module. The power supply module is connected with the capacitive digital conversion module, the microprocessor module and the display module respectively. The sensor module is connected with the capacitive digital conversion module. The capacitive digital conversion module is connected with the microprocessor module. The microprocessor module is connected with the display module. A detection problem of the tiny inclination angle is solved. By using the apparatus of the utility model, a resolution ratio is high; 0.2'' tiny inclination angle variation can be detected; anti-interference performance and stability are strong.

Description

A kind of tiny inclination angle pick-up unit
Technical field
The utility model relates to the tiny inclination angle pick-up unit that a kind of tiny inclination angle pick-up unit, particularly a kind of resolution are the rad level.
Background technology
Inclination detecting device is widely used in the fields such as Railway System, building trade, military robotization, industrial automation, automobile and machinery industry, is mainly used to detection level angle, the angle of pitch, pitch angle etc.The characteristics such as that inclination detecting device has is easy to use, measurement range is large, but Measurement Resolution, anti-interference and stability are relatively low.
The resolution of this class inclination detecting device is all generally 0.1 ° or 0.01 ° of left and right at present, it forms structure and mainly comprises sensor and signal conversion module, sensor is mainly to adopt gravity pendulum or inductance or integrated acceleration chip, the signal conversion module comprises that non electrical quantity is to the conversion of electric weight, AC-DC conversion, impedance transformation, signal amplification, signal filtering etc., owing to generally adopting mimic channel designed, also make the anti-interference of this device low, thereby limited the further raising of its precision, resolution and stability.If will be detected the inclination angle of rad level, can only utilize high resolving power and high-precision electrolevel to be detected, but the measurement range of this class level meter only has hundreds of rad ("), can't meet the occasion of inclination angle detection on a large scale.
The utility model content
Its purpose of the utility model just is to provide a kind of tiny inclination angle pick-up unit, has solved the test problems of tiny inclination angle.Have resolution high, can be to 0.2 " the tiny inclination angle variable quantity detected, anti-interference and the strong characteristics of stability.
The technical scheme that realizes above-mentioned purpose and take, comprise power module, sensor assembly, also comprise electric capacity data-converting block, microprocessor module and display module, described power module is connected with electric capacity data-converting block, microprocessor module and display module respectively; Described sensor assembly is connected with the electric capacity data-converting block; Described electric capacity data-converting block is connected with microprocessor module; Described microprocessor module is connected with display module.
Compared with prior art the utlity model has following advantage.
1) resolution is high, can be 0.2 to minimum change " tiny inclination angle of (rad) is detected, and accuracy of detection is better than 1 ", in the case, measurement range can reach ± 10 °, the small inclination variable quantity under wide range detected realizing;
2) internal circuit configuration is simple, anti-interference strong with stability, due to the mentality of designing that has adopted full-digital circuit, has saved complicated Analog Circuit Design work, thereby whole device is oversimplified, and anti-environmental interference performance and stability also greatly improve.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is this apparatus structure principle block diagram.
Fig. 2 installs electric principle schematic for this.
Fig. 3 is power module principle schematic in this device.
Embodiment
This device comprises power module, sensor assembly, as shown in Figure 1, 2, also comprises electric capacity data-converting block, microprocessor module and display module, and described power module is connected with electric capacity data-converting block, microprocessor module and display module respectively; Described sensor assembly is connected with the electric capacity data-converting block; Described electric capacity data-converting block is connected with microprocessor module; Described microprocessor module is connected with display module.
Described power module at least comprises a kind of integrated power supply chip U1MAX1797, a high resistance measurement R1 and an inductance L 1, for completing the conversion to the 5V output voltage to the input voltage lower than 3.3V, as shown in Figure 3.
Described sensor assembly is a kind of differential capacitance sensor, at least comprises two electric capacity stills and an electric capacity moving plate, for completing the conversion of change of pitch angle amount to capacitance change.
Described electric capacity data-converting block is a kind of high-resolution chip of the integrated digital with IC interface U2AD7745, and integrated digital chip U2AD7745 changes the capacitance signal of capacitive transducer into the digital quantity of 24 when for sensor assembly, providing oscillator signal.
Described microprocessor module is a kind of U3P89C668 of the microprocessor with the IC interface, and microprocessor U3P89C668 and integrated digital chip U2AD7745 carry out communication by the IC interface, and draw on being undertaken by resistance R 2, R3.
This device comprises power module, sensor assembly, electric capacity data-converting block, microprocessor module and display module.Wherein, power module is connected with electric capacity data-converting block, microprocessor module and display module respectively, being respectively them provides work required voltage, sensor assembly is connected with the electric capacity data-converting block, the electric capacity data-converting block is connected with microprocessor module, microprocessor module is connected with display module, thereby realizes the detection of tiny inclination angle, and testing result is shown on display module.
Power module is be converted to the output voltage of 5V lower than the input voltage of 3.3V, being respectively electric capacity data-converting block, microprocessor module and display module provides normal operation required power supply, and the required working power of sensor assembly is directly provided by the oscillator signal of electric capacity data-converting block.When this tiny inclination angle pick-up unit is positioned on surface, tested inclination angle, if tested inclination angle changes, at first capacitive transducer converts the variable quantity at inclination angle to the variable quantity of electric capacity, the electric capacity data-converting block converts the variable quantity of electric capacity to again the digital quantity of 24, and give microprocessor module 24 bit digital quantity that convert to by the IC interface and carry out the conversion of 24 bit digital quantity to inclination angle, microprocessor module is after inclination angle converts, finally the change of pitch angle value is shown on display module, thereby realize the detection to tiny inclination angle.

Claims (5)

1. a tiny inclination angle pick-up unit, comprise power module, sensor assembly, it is characterized in that, also comprise electric capacity data-converting block, microprocessor module and display module, described power module is connected with electric capacity data-converting block, microprocessor module and display module respectively; Described sensor assembly is connected with the electric capacity data-converting block; Described electric capacity data-converting block is connected with microprocessor module; Described microprocessor module is connected with display module.
2. a kind of tiny inclination angle pick-up unit according to claim 1, it is characterized in that, described power module at least comprises a kind of integrated power supply chip U1MAX1797, a high resistance measurement R1 and an inductance L 1, for completing the conversion to the 5V output voltage to the input voltage lower than 3.3V.
3. a kind of tiny inclination angle pick-up unit according to claim 1, it is characterized in that, described sensor assembly is a kind of differential capacitance sensor, at least comprises two electric capacity stills and an electric capacity moving plate, for completing the conversion of change of pitch angle amount to capacitance change.
4. a kind of tiny inclination angle pick-up unit according to claim 1, it is characterized in that, described electric capacity data-converting block is a kind of high-resolution chip of the integrated digital with IC interface U2AD7745, and integrated digital chip U2AD7745 changes the capacitance signal of capacitive transducer into the digital quantity of 24 when for sensor assembly, providing oscillator signal.
5. a kind of tiny inclination angle pick-up unit according to claim 1, it is characterized in that, described microprocessor module is a kind of U3P89C668 of the microprocessor with the IC interface, microprocessor U3P89C668 and integrated digital chip U2AD7745 carry out communication by the IC interface, and draw on being undertaken by resistance R 2, R3.
CN 201320224960 2013-04-28 2013-04-28 Tiny inclination angle detection apparatus Expired - Fee Related CN203364757U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320224960 CN203364757U (en) 2013-04-28 2013-04-28 Tiny inclination angle detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320224960 CN203364757U (en) 2013-04-28 2013-04-28 Tiny inclination angle detection apparatus

Publications (1)

Publication Number Publication Date
CN203364757U true CN203364757U (en) 2013-12-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320224960 Expired - Fee Related CN203364757U (en) 2013-04-28 2013-04-28 Tiny inclination angle detection apparatus

Country Status (1)

Country Link
CN (1) CN203364757U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105091734A (en) * 2014-04-30 2015-11-25 鸿富锦精密工业(武汉)有限公司 Displayer inclination angle indication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105091734A (en) * 2014-04-30 2015-11-25 鸿富锦精密工业(武汉)有限公司 Displayer inclination angle indication system

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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: 20131225

Termination date: 20150428

EXPY Termination of patent right or utility model