CN208921117U - A kind of differential capacitance inclination angle detector - Google Patents
A kind of differential capacitance inclination angle detector Download PDFInfo
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- CN208921117U CN208921117U CN201821533970.8U CN201821533970U CN208921117U CN 208921117 U CN208921117 U CN 208921117U CN 201821533970 U CN201821533970 U CN 201821533970U CN 208921117 U CN208921117 U CN 208921117U
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- China
- Prior art keywords
- capacitance
- capacitor
- differential
- chip microcontroller
- inclination angle
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Abstract
The utility model is related to a kind of differential capacitance inclination angle detector, including differential capacitor, capacity commutator, single-chip microcontroller, display and key, and differential capacitor is connected to capacity commutator, and capacity commutator is connected to single-chip microcontroller, and single-chip microcontroller connects display and key；Differential capacitor uses liquid pendulum-type sonde configuration, and probe inclination angle is converted into capacitance variations, and capacitance change is converted into digital quantity again by capacity commutator, and single-chip microcontroller is sent to handle, then send display to carry out inclination angle and show.
Description
Technical field
The utility model relates to sensing technology, electronic technology, instrumental technique and Machine Manufacturing Technologies, especially with differential electricity
Hold sensor to realize the technical field of inclination angle measurement.
Background technique
Traditional capacitance level detection device, capacitor processing circuit mostly use complicated conversion circuit, cause circuit
Can be unstable, debugging difficulty is big, and temperature drift is big.In order to solve this problem, it is handled using a kind of special chip, letter
Change capacitor conditioning circuit, increase stability, keeps measurement more accurate.
Summary of the invention
In order to which more convenient, accurately the horizontal detection of progress is measured with inclination angle, a kind of differential capacitance inclination angle detector is invented,
The device includes differential capacitor (1), capacity commutator (2), single-chip microcontroller (3), display (4) and key (5), differential capacitor (1)
It is connected to capacity commutator (2), capacity commutator (2) is connected to single-chip microcontroller (3), and single-chip microcontroller (3) connects display (4) and key
(5).Differential capacitor (1) uses liquid pendulum structure, including capacitance body (1-1), liquid (1-2), segment (1-3), fixed electrode A
(1-4), fixed electrode B (1-5), public electrode (1-6) and shaft (1-7)；Capacitance body (1-1) at cylinder, inside be it is hollow,
Partly have liquid (1-2), segment (1-3) is fixed on the center of circle of capacitance body (1-1) by shaft (1-7), and segment (1-3) can
It is freely rotated with (1-7) around the shaft；Fixed electrode A (1-4), fixed electrode B (1-5), public electrode (1-6) are metal material,
Fixed electrode A (1-4) and public electrode (1-6) shape capacitor Cx1, fixed electrode B (1-5) and public electrode (1-6) form capacitor
Cx2, Cx1 and Cx2 constitute a pair of differential capacitor.Capacity commutator (2) uses chip AD7150, the electricity of capacitor Cx1 and Cx2
The capacitance analogue value is converted into digital value by capacity commutator (2) by capacitance, is then sent through single-chip microcontroller (3) processing, is obtained differential
The inclination value of capacitor (1), then display (4) is sent to show numerical value.
The beneficial effect of the utility model is that measurement stability is good, and temperature drift is small.
Detailed description of the invention
Fig. 1 is utility model structural block diagram, and Fig. 2 is differential capacitor (1) structure chart, and Fig. 3 is capacitor conversion circuit principle
Figure, Fig. 4 are single-chip microcontroller, display and key schematic diagram；Wherein, 1 it is differential capacitor, 2 be capacity commutator, 3 is single-chip microcontroller, 4
It is key for display, 5,1-1 is capacitance body, 1-2 is liquid, 1-3 is segment, 1-4 is fixed electrode A, 1-5 is fixed electricity
Pole B, 1-6 are public electrode, 1-7 is shaft.
Specific embodiment
The utility model includes differential capacitor (1), capacity commutator (2), single-chip microcontroller (3), display (4) and key (5),
Differential capacitor (1) is connected to capacity commutator (2), and capacity commutator (2) is connected to single-chip microcontroller (3), single-chip microcontroller (3) connection display
Device (4) and key (5).Differential capacitor (1) uses liquid pendulum structure, including capacitance body (1-1), liquid (1-2), segment (1-
3), fixed electrode A (1-4), fixed electrode B (1-5), public electrode (1-6) and shaft (1-7)；Capacitance body (1-1) Cheng Yuanzhu
Shape, inside be it is hollow, partly have liquid (1-2), segment (1-3) is fixed on the center of circle of capacitance body (1-1) by shaft (1-7)
On, segment (1-3) (1-7) can be freely rotated around the shaft；Fixed electrode A (1-4), fixed electrode B (1-5), public electrode
(1-6) is metal material, fixed electrode A (1-4) and public electrode (1-6) shape capacitor Cx1, fixed electrode B (1-5) and common electrical
Pole (1-6) forms capacitor Cx2, Cx1 and Cx2 and constitutes a pair of differential capacitor.Capacity commutator (2) uses chip AD7150, electricity
The capacitance analogue value is converted into digital value by capacity commutator (2) by the capacitance of container Cx1 and Cx2, is then sent through single-chip microcontroller
(3) it handles, obtains the inclination value of differential capacitor (1), then display (4) is sent to show numerical value.
In the present embodiment, service wire 3.3V, SCL, SDA, GND in Fig. 3 interface respectively with the service wire of Fig. 4
3.3V, SCL, SDA, GND connection.
In the present embodiment, single-chip microcontroller (3) uses STC12LE5204AD, and capacity commutator (2) uses chip AD7150, this
Two elements all use 3.3V to power, and display (4) uses LCD1602, are powered using 5V.
In the present embodiment, the fixation electrode A (1-4) of capacitor Cx1, public electrode (1-6) are connected respectively to drawing for AD7150
Foot 6,4, the fixation electrode B (1-5) of capacitor Cx2, public electrode (1-6) are connected respectively to the pin 5,3 of AD7150；AD7150's
Pin 9,10 is separately connected port pins SCL, SDA.Interface 3.3V, SCL, SDA, GND of Fig. 4 be connected respectively to power supply 3.3V,
The pin 6 and 7 of STC12LE5204AD,；Key (5) is connected to the pin 11,12,13 of STC12LE5204AD；LCD1602's
Pin RS, EN, D4, D5, D6, D7 are connected respectively to the pin 14,15,16,17,18,19 of STC12LE5204AD.
Claims (3)
1. a kind of differential capacitance inclination angle detector, feature includes differential capacitor (1), capacity commutator (2), single-chip microcontroller (3), shows
Showing that device (4) and key (5), differential capacitor (1) are connected to capacity commutator (2), capacity commutator (2) is connected to single-chip microcontroller (3),
Single-chip microcontroller (3) connects display (4) and key (5).
2. a kind of differential capacitance inclination angle detector according to claim 1, it is characterized in that differential capacitor (1) uses liquid pendulum
Structure, including capacitance body (1-1), liquid (1-2), segment (1-3), fixed electrode A (1-4), fixed electrode B (1-5), public
Electrode (1-6) and shaft (1-7)；Capacitance body (1-1) at cylinder, inside be it is hollow, partly have liquid (1-2), segment (1-3)
It is fixed on the center of circle of capacitance body (1-1) by shaft (1-7), segment (1-3) (1-7) can be freely rotated around the shaft；Gu
Fixed electrode A(1-4), fixed electrode B (1-5), public electrode (1-6) be metal material, fixed electrode A (1-4) and public electrode
(1-6) shape capacitor Cx1, fixed electrode B (1-5) and public electrode (1-6) form capacitor Cx2, and Cx1 and Cx2 constitute a pair of differential
Capacitor.
3. a kind of differential capacitance inclination angle detector according to claim 1 or 2, it is characterized in that capacity commutator (2) uses
The capacitance analogue value is converted into digital value by capacity commutator (2) by the capacitance of chip AD7150, capacitor Cx1 and Cx2,
It is then sent through single-chip microcontroller (3) processing, obtains the inclination value of differential capacitor (1), then display (4) is sent to show numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533970.8U CN208921117U (en) | 2018-09-19 | 2018-09-19 | A kind of differential capacitance inclination angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533970.8U CN208921117U (en) | 2018-09-19 | 2018-09-19 | A kind of differential capacitance inclination angle detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208921117U true CN208921117U (en) | 2019-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821533970.8U Expired - Fee Related CN208921117U (en) | 2018-09-19 | 2018-09-19 | A kind of differential capacitance inclination angle detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN208921117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609412A (en) * | 2022-03-11 | 2022-06-10 | 西安交通大学 | Electric iron gesture recognition intelligent sensor based on MEMS capacitive acceleration sensor |
-
2018
- 2018-09-19 CN CN201821533970.8U patent/CN208921117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609412A (en) * | 2022-03-11 | 2022-06-10 | 西安交通大学 | Electric iron gesture recognition intelligent sensor based on MEMS capacitive acceleration sensor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20200919 |
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| CF01 | Termination of patent right due to non-payment of annual fee |