CN2874431Y - Integrated rotary change coder - Google Patents
Integrated rotary change coder Download PDFInfo
- Publication number
- CN2874431Y CN2874431Y CN 200520139949 CN200520139949U CN2874431Y CN 2874431 Y CN2874431 Y CN 2874431Y CN 200520139949 CN200520139949 CN 200520139949 CN 200520139949 U CN200520139949 U CN 200520139949U CN 2874431 Y CN2874431 Y CN 2874431Y
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- integrated
- circuit
- sensor
- coder
- circuit board
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Abstract
An integrated swing coder taking a swing transformer or an analog device as a sensor is provided. The sensor is integrated with a circuit board assembly through an electrode of a motor. The circuit board is provided with a chip, an assembled by a shaft angle-digital switch circuit and a magnetizing circuit, an amplification integrated circuit, a long-wire transmission interface and a connector. The integrated chip integrates the magnetizing circuit, thus relieving a resolver-digit transmitted circuit' s reliance on the special magnetizing power source and multiple direct current power source. Through the minimized and integrated design with the technique of the high-precision assembly, the utility model realizes the integrated swing coder based on the angle measuring technology of sensor and has the advantages of both photoelectrical coder and rotary transformer and makes up their respective shortcomings. The utility model has the advantages of convenient use, small dimension, and low cost equivalent to incremental photoelectrical coder.
Description
Technical field
The utility model relates to a kind of industrial control technology, particularly a kind of integrated resolving encoder.Can be used for realizing to the also digital output of the measurement of axis angular position and angular velocity.
Background technology
At present, the measurement to axis angular position and angular velocity mainly contains two kinds of methods.One, photoelectric encoder because photoelectric code disk also rotates, also claims rotary encoder sometimes, utilizes photoelectric code disk to realize increment or absolute encoding output.Two, rotary transformer angle measurement scheme is a sensor with rotary transformer or selsyn, adds excitation power supply, realizes the axis angular position measurement by rotary transformer or selsyn-digital quantizer.Photoelectric encoder mainly is made up of photoelectric code disk, lens light source, photoelectric conversion circuit, mainly relies on the optical principle manufacturing.The photoelectric encoder technical matters complexity of absolute encoding, cost height, photoelectric encoder mainly adopt the output of increment type coding.Photoelectric encoder is subject to influences such as humidity, dust owing to adopt optics, and under rugged surroundings, precision and serviceable life reduce greatly.Existing rotary transformer angle measurement scheme adopts rotary transformer, shaft angle-digital conversion circuit, excitation power supply separate design, signals of rotating transformer is transferred on the circuit board with shaft angle-digital conversion circuit and excitation power supply by long line, be converted to digital quantity by circuit board, simultaneously must provide special-purpose excitation power supply, multi-channel dc power supply, use inconvenience.Existing rotary transformer angle measurement scheme comprises rotary transformer, shaft angle-digital conversion circuit, excitation power supply, multi-channel dc power supply and mounting circuit boards, and physical dimension is bigger.Because shaft angle in original rotary transformer angle measurement scheme-digital conversion circuit adopts discrete component or special-purpose hydrid integrated circuit, adds special-purpose excitation power supply, multiple power supplies and mounting circuit boards, the cost height.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed the resolving encoder of a kind of miniaturization, integrated, integrated design.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of integrated resolving encoder, be characterized in: it is a sensor with rotary transformer or selsyn, sensor is by motor electrode and circuit board is integrated is assembled into one, circuit board is provided with shaft angle-digital conversion circuit and integrated chip, power amplifier integrate circuit, long line transmission interface and the connector of exciting circuit, integrated chip links to each other with power amplifier integrate circuit and joins with sensor respectively, and integrated chip also joins by long line transmission interface and connector.
The technical problems to be solved in the utility model can also come to realize that further described connector is provided with the photoelectric encoder compatibility interface by the following technical programs.
The utility model compared with prior art, with rotary transformer or selsyn is sensor, adopt shaft angle-digital conversion special integrated chip to simplify rotary transformer angle measurement circuit design, work of chip single supply and inner integrated exciting circuit, solved of the dependence of shaft angle-digital conversion circuit to special-purpose excitation power supply and multi-channel dc power supply, carry out miniaturization and integrated design by highly dense packaging technology, realize integrated resolving encoder based on the sensor angle measurement technique.It passes through based on the special-purpose shaft angle-digital conversion integrated circuit of DSP technology and the application of surface mount process, realize the numeral output of mechanical axis angular position and angular velocity, make its advantage, remedied deficiency separately simultaneously again with photoelectric encoder and rotary transformer angle measurement scheme.Digital quantity is directly exported in the work of the utility model single supply, and the interface compatibility photoelectric encoder is easy to use; Physical dimension is little; Cost is equivalent to incremental optical-electricity encoder.
Description of drawings
Fig. 1 is a structure diagram of the present utility model.
Fig. 2 is the integrated chip circuit theory diagrams.
Embodiment
Integrated resolving encoder, it is a sensor 1 with rotary transformer or selsyn, sensor 1 is by motor electrode 2 and circuit board 3 integrated being assembled into one, circuit board 3 is provided with shaft angle-digital conversion circuit 7 and exciting circuit 8 integrated chip, power amplifier integrate circuit 9, long line transmission interface 10 and connector 11, integrated chip links to each other with power amplifier integrate circuit 9 and joins with sensor 1 respectively, and integrated chip also joins with connector 11 by long line transmission interface 10.Described connector 11 is provided with the photoelectric encoder compatibility interface.Outside the circuit board 3 lid 4 is housed, lid 4 is connected with socket 5 by extension line 6.
With the rotary transformer is sensor 1, concrete structure is: under the exciting curent effect, the rotary transformer stator coil forms stator field in rotary transformer, by the electromagnetic induction of rotor winding, respond to the sinusoidal sin θ and the cosine cos θ two-way am signals of output and rotor mechanical angular dependence (-dance) on the orthogonal two-phase stator winding respectively.
The rotary transformer stator directly links to each other with circuit board 3 by motor stern post electrode 2 with the rotor winding, the excitatory special-purpose shaft angle-digital conversion integrated circuit 7 that derives from, its output sine and cosine is connected to the signal input part of special-purpose shaft angle-digital conversion integrated circuit 7, realize the analog signal conversion of rotary transformer is become digital signal by integrated circuit, and calculate shaft angle θ, variation d θ/dt of corresponding unit interval θ can also draw angular velocity omega.
Numeral axis angular position and angular velocity measurer have multiple output forms such as increment type, absolute type, serial, and different output forms can be selected by changing part hardware circuit connected mode.The output digital quantity is connected to output on the scrambler connector 11 by the long line transmission interface 10 on the circuit board 3, realizes long line transfer function.
With the selsyn is sensor, and unique difference of rotary transformer is: between sensor and original circuit, add a mathematic(al) manipulation process, three outputs are become two, other are constant.
Claims (2)
1. integrated resolving encoder, it is characterized in that: it is sensor (1) with rotary transformer or selsyn, sensor (1) is by motor electrode (2) and integrated being assembled into one of circuit board (3), circuit board (3) is provided with shaft angle one digital conversion circuit (7) and the integrated chip of exciting circuit (8), power amplifier integrate circuit (9), long line transmission interface (10) and connector (11), integrated chip links to each other with power amplifier integrate circuit (9) and joins with sensor (1) respectively, and integrated chip also joins by long line transmission interface (10) and connector (11).
2. integrated resolving encoder according to claim 1 is characterized in that: described connector (11) is provided with the photoelectric encoder compatibility interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139949 CN2874431Y (en) | 2005-12-13 | 2005-12-13 | Integrated rotary change coder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139949 CN2874431Y (en) | 2005-12-13 | 2005-12-13 | Integrated rotary change coder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874431Y true CN2874431Y (en) | 2007-02-28 |
Family
ID=37781029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520139949 Expired - Lifetime CN2874431Y (en) | 2005-12-13 | 2005-12-13 | Integrated rotary change coder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874431Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975592A (en) * | 2010-09-28 | 2011-02-16 | 北京金自天正智能控制股份有限公司 | Hollow shaft heavy-load rotary transformer encoder |
| CN103187832A (en) * | 2011-12-31 | 2013-07-03 | 上海捷能汽车技术有限公司 | Motor system and electric vehicle or hybrid electric vehicle using same |
| CN103557830A (en) * | 2013-10-30 | 2014-02-05 | 北京理工大学 | Angle measuring plate card compatible with various sensors |
-
2005
- 2005-12-13 CN CN 200520139949 patent/CN2874431Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975592A (en) * | 2010-09-28 | 2011-02-16 | 北京金自天正智能控制股份有限公司 | Hollow shaft heavy-load rotary transformer encoder |
| CN103187832A (en) * | 2011-12-31 | 2013-07-03 | 上海捷能汽车技术有限公司 | Motor system and electric vehicle or hybrid electric vehicle using same |
| CN103557830A (en) * | 2013-10-30 | 2014-02-05 | 北京理工大学 | Angle measuring plate card compatible with various sensors |
| CN103557830B (en) * | 2013-10-30 | 2017-02-08 | 北京理工大学 | Angle measuring plate card compatible with various sensors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070228 |
|
| EXPY | Termination of patent right or utility model |