CN204924253U - A angle measuring device for gyrocompass - Google Patents
A angle measuring device for gyrocompass Download PDFInfo
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- CN204924253U CN204924253U CN201520527889.9U CN201520527889U CN204924253U CN 204924253 U CN204924253 U CN 204924253U CN 201520527889 U CN201520527889 U CN 201520527889U CN 204924253 U CN204924253 U CN 204924253U
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Abstract
The utility model discloses an angle measuring device for gyrocompass, movable support is changeed including the position for it changes regional measuring device of movable support pivoted angle and the accurate measuring device of angle and resolves the unit to measure the position. The utility model discloses a two photoelectric encoder confirm the position respectively and change the regional and accurate angle of angle that movable support located, the photoelectric encoder who consequently need not to choose for use the precision very high to the cost is reduced has reduced the volume, has precision height, with low costs, small advantage, the utility model discloses a resolve the unit, receive the digital quantity angle value that two photoelectric encoder sent simultaneously. The angle value that its transfer value is 360 / commentaries on classics is used for confirming that the position commentaries on classics angle that movable support located is regional, the angle value that the commentaries on classics value is 10 / commentaries on classics is used for confirming the position commentaries on classics accurate number of degrees that movable support located. Consequently, under the not high condition of photoelectric encoder precision, also can guarantee higher angle measurement accuracy.
Description
Technical field
The utility model belongs to marine navigation technical field, is specifically related to a kind of angle measurement unit for gyrocompass.
Background technology
Gyrocompass is used for providing ship course.The angle residing for azimuth rotation support of gyrocompass is current ship course value, therefore need use angle measurement mechanism to measure the angle residing for azimuth rotation support, and the measuring accuracy of this angle measurement unit directly have influence on the course precision of gyrocompass.
At present, the kind for the angle measurement unit of gyrocompass has following several:
1, multipolar resolver type
Multipolar resolver is arranged on the azimuth rotation support of gyrocompass, turn value 360 °/turn.Multipolar resolver exports the analog voltage corresponding with angle residing for azimuth rotation support, after AD conversion unit conversion, and exportable accurate angle value.Although this mode precision is high, volume is little, cost intensive, and AD conversion unit complex circuit.
2, selsyn type
Selsyn is arranged on the azimuth rotation support of gyrocompass, turn value 360 °/turn.Selsyn exports the analog voltage corresponding with angle residing for azimuth rotation support, after AD conversion unit conversion, and exportable angle value.Although this mode cost is lower, measuring accuracy is not high, and AD conversion unit complex circuit.
3, monochromatic light photoelectric coder type
A photoelectric encoder is arranged on the azimuth rotation support of gyrocompass, turn value 360 °/turn.Photoelectric encoder exports the digital quantity angle value corresponding with angle residing for azimuth rotation support, exportable angle value after solving unit calculates.If the photoelectric encoder that this mode selects precision high, then volume is large, price is high; If select the photoelectric encoder that precision is low, although volume is little, price is low, but accuracy requirement cannot be met.
Summary of the invention
For problems of the prior art, the utility model provides a kind of angle measurement unit for gyrocompass, adopt two photoelectric encoders, obtain the angular regions residing for azimuth rotation support and accurate angle respectively, thus reach the object reducing costs, improve precision, reduce volume.
For achieving the above object, the utility model is by the following technical solutions:
For an angle measurement unit for gyrocompass, comprise azimuth rotation support, for measuring the angular regions measurement mechanism of azimuth rotation holder pivots and angle device for accurately measuring and solving unit.
Described angular regions measurement mechanism comprises the first gear being arranged on side, azimuth rotation support bottom, described first gear is connected with the first rotating shaft, first rotating shaft is provided with the first photoelectric encoder, and the digital signal that the first photoelectric encoder is measured by the first data line is delivered to solving unit.
Described angle device for accurately measuring comprises the second gear being arranged on azimuth rotation support bottom opposite side, described second gear is connected with the second rotating shaft, second rotating shaft is provided with the second photoelectric encoder, and the digital signal that the second photoelectric encoder is measured by the second data line is delivered to solving unit.
Described first rotating shaft is 360 °/turns, and described second rotating shaft is 10 °/turns, and be wherein installed on the first photoelectric encoder in first rotating shaft of 360 °/turns, its angle value determines the angular regions residing for azimuth rotation support; Be installed on the second photoelectric encoder in second rotating shaft of 10 °/turns, its angle value determines the accurate number of degrees residing for azimuth rotation support, after solving unit receives the digital signal (angle value) of the first photoelectric encoder and the conveying of the second photoelectric encoder, through combination, calculate, export the accurate angle residing for azimuth rotation support.
The delivery outlet of described solving unit is RS232 serial ports, RS422 serial ports or CAN interface, can be used for sending course information to autopilot, radar, electronic chart, course repeater, ship equipment network even load.
Compared with prior art, the beneficial effects of the utility model are:
1, adopt two photoelectric encoders, determine the angular regions residing for azimuth rotation support and accurate angle respectively, therefore without the need to selecting the photoelectric encoder that precision is very high, thus reducing cost, reducing volume.
2, the solving unit of the utility model employing, receives the digital quantity angle value that two photoelectric encoders send simultaneously.Its transfer value is for the angle value of 360 °/turns is for determining the angular regions residing for azimuth rotation support; Turn value for the angle value of 10 °/turns is for determining the accurate number of degrees residing for azimuth rotation support.Therefore, under the condition that photoelectric encoder precision is not high, also higher angle-measurement accuracy can be ensured.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the solving unit process flow diagram of the utility model embodiment.
Embodiment
We are described in further detail angle measurement unit of the present utility model with specific embodiment by reference to the accompanying drawings below, in the hope of being illustrated more clearly in the utility model, but can not limit protection domain of the present utility model with this.
As depicted in figs. 1 and 2, the present embodiment is used for the angle measurement unit of gyrocompass, comprises azimuth rotation support 1, for measuring the angular regions measurement mechanism of azimuth rotation holder pivots and angle device for accurately measuring and solving unit 2.
Further, the present embodiment angular regions measurement mechanism comprises the first gear 3 being arranged on side, azimuth rotation support bottom, described first gear with 360 °/turn the first rotating shaft 4 be connected, first rotating shaft is provided with the digital signal that the first photoelectric encoder 5, first photoelectric encoder measured by the first data line 6 and is delivered to solving unit; Angle device for accurately measuring comprises the second gear 7 being arranged on azimuth rotation support bottom opposite side, described second gear is connected with 10 °/turns of the second rotating shafts 8, second rotating shaft is provided with the digital signal that the second photoelectric encoder 9, second photoelectric encoder measured by the second data line 10 and is delivered to solving unit.
The present embodiment first rotating shaft is 360 °/turns, and described second rotating shaft is 10 °/turns, and be wherein installed on the first photoelectric encoder in first rotating shaft of 360 °/turns, its angle value determines the angular regions residing for azimuth rotation support; Be installed on the second photoelectric encoder in second rotating shaft of 10 °/turns, its angle value determines the accurate number of degrees residing for azimuth rotation support, after solving unit receives the digital signal (angle value) of the first photoelectric encoder and the conveying of the second photoelectric encoder, through combination, calculate, export the accurate angle residing for azimuth rotation support.
The present embodiment is for ease of sending course information to autopilot, radar, electronic chart, course repeater, ship equipment network even load, and the delivery outlet of solving unit is RS232 serial ports, RS422 serial ports or CAN interface.
As shown in Figure 3, what the present embodiment solving unit received that the first photoelectric encoder sends turns the angle value that value is 360 °/turns, supposes that this value is R1; What receive that the second photoelectric encoder sends turns the angle value that value is 10 °/turns, supposes that this value is R2.Because the zero-bit of two photoelectric encoders can not be completely the same, cause carry difference, after therefore needing that judgement is compared to the units value of R1, R2, can combine further and calculate accurate angle R3, and externally send.Detailed process is as follows:
If individual position≤1 of the individual position-R2 of 1-1≤R1, illustrate that the units value of R1, R2 two number is comparatively identical, there is not carry difference, directly get hundred of R1, ten digit value is hundred, the ten digit value of R3, the numerical value getting R2 is the individual position of R3, fractional value.
If individual position=9 of the individual position-R2 of 2 R1, illustrate that R1, R2 exist carry difference, R2 is prior to R1 carry, and get hundred of R1, ten digit value adds that 1 for hundred, the ten digit value of R3, the numerical value getting R2 is the individual position of R3, fractional value.
If individual position=9 of the individual position-R1 of 3 R2, illustrate that R1, R2 exist carry difference, R1 is prior to R2 carry, and get hundred of R1, ten digit value deducts 1 for hundred, the ten digit value of R3, the numerical value getting R2 is the individual position of R3, fractional value.
Owing to have employed the utility model, in the design effort of electromagnet control gyrocompass, when measuring accuracy is consistent, similar compass relatively in the past, angle measurement unit has saved about half cost.
Claims (2)
1. for an angle measurement unit for gyrocompass, it is characterized in that: comprise azimuth rotation support (1), for measuring the angular regions measurement mechanism of azimuth rotation holder pivots and angle device for accurately measuring and solving unit (2); Described angular regions measurement mechanism comprises the first gear (3) being arranged on side, azimuth rotation support bottom, described first gear with 360 °/turn the first rotating shaft (4) be connected, first rotating shaft is provided with the first photoelectric encoder (5), and the digital signal that the first photoelectric encoder is measured by the first data line (6) is delivered to solving unit; Described angle device for accurately measuring comprises the second gear (7) being arranged on azimuth rotation support bottom opposite side, described second gear is connected with 10 °/turns of the second rotating shafts (8), second rotating shaft is provided with the second photoelectric encoder (9), and the digital signal that the second photoelectric encoder is measured by the second data line (10) is delivered to solving unit.
2. the angle measurement unit for gyrocompass according to claim 1, is characterized in that: the delivery outlet of described solving unit is RS232 serial ports, RS422 serial ports or CAN interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527889.9U CN204924253U (en) | 2015-07-21 | 2015-07-21 | A angle measuring device for gyrocompass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527889.9U CN204924253U (en) | 2015-07-21 | 2015-07-21 | A angle measuring device for gyrocompass |
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| CN204924253U true CN204924253U (en) | 2015-12-30 |
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| CN201520527889.9U Active CN204924253U (en) | 2015-07-21 | 2015-07-21 | A angle measuring device for gyrocompass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709547A (en) * | 2018-03-14 | 2018-10-26 | 中船航海科技有限责任公司 | A kind of heading measure sending device and its measurement method for gyrocompass |
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2015
- 2015-07-21 CN CN201520527889.9U patent/CN204924253U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709547A (en) * | 2018-03-14 | 2018-10-26 | 中船航海科技有限责任公司 | A kind of heading measure sending device and its measurement method for gyrocompass |
| CN108709547B (en) * | 2018-03-14 | 2023-06-27 | 中船航海科技有限责任公司 | Course measurement transmitting device for gyro compass and measurement method thereof |
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