Method and device for determining an angular error and use of the device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01B-011/26
G01C-001/00
출원번호
US-0461743
(2003-06-13)
우선권정보
CH-1025/02(2002-06-14)
발명자
/ 주소
Schneider,Gabriel
출원인 / 주소
Schneider,Gabriel
인용정보
피인용 횟수 :
5인용 특허 :
10
초록▼
A method and a device are disclosed for establishing actual changes and intended changes of the spatial angle of a main axis (e) of a sensor or effector attached to a receiver (4.1). The receiver ( 4.1) is directly rotatable around the first axis of rotation (I) and indirectly rotatable around at le
A method and a device are disclosed for establishing actual changes and intended changes of the spatial angle of a main axis (e) of a sensor or effector attached to a receiver (4.1). The receiver ( 4.1) is directly rotatable around the first axis of rotation (I) and indirectly rotatable around at least one further axis of rotation (b, a). An optical-electronic angular measurement device (5) having at least two measurement axes is attached to the receiver (4.1). For a first axis of rotation (I, b, a), a rotation is performed around this first axis of rotation (I, b, a), while any rotation around further axes of rotation is prevented. After each rotation step, a first actual change of the spatial angle of the main axis (e) is detected and stored by the angular measurement device (5), and a first intended change of the spatial angle of the main axis (e) is provided and stored by a coder device (10). During use of the device, a carrier base (8), onto which the receiver (4.1) is attached via a carrier (6), is directly or indirectly attached to a movable mounting surface ( 1).
대표청구항▼
What is claimed is: 1. A method for testing a system before it is operational by detecting internal defaults due to manufacturing and mounting inaccuracies, wherein the system comprises a sensor or effector having a main axis, a receiver in which the sensor or effector is received, the receiver be
What is claimed is: 1. A method for testing a system before it is operational by detecting internal defaults due to manufacturing and mounting inaccuracies, wherein the system comprises a sensor or effector having a main axis, a receiver in which the sensor or effector is received, the receiver being rotatable directly about a first axis of rotation and indirectly about at least one further axis of rotation, a coder device providing intended angles of the main axis for any of a plurality of positions of the receiver, and wherein the inaccuracies resulting, for each position of the receiver in an angle difference between the actual angle of the main axis and the intended angle of the main axis, the method comprising the steps of attaching to the receiver an optical-electronic angular measurement device having at least two measurement axes and being adapted to provide actual changes of angles of the main axis, performing a determining procedure for the first axis of rotation axis or one of the further axes of rotation, while any rotation about the other axes is prevented, and after each rotation step providing a first actual change of the spatial angle of the main axis by the angular measurement device and storing the first actual change, and providing a first intended change of the spatial angle of the main axis by the coder device of the system and storing the first intended change. 2. The method according to claim 1, wherein the determination procedure is performed for the at least one further axis of rotation in which a rotation is performed in rotation steps around the at least one further axis of rotation, while rotations around the first and possibly even further axes of rotation are prevented, and after each rotation step a second actual change of the spatial angle of the effector main axis is detected by the angular measurement device and stored, and a second intended change of the spatial angle of the effector main axis is provided and stored by a coder device. 3. The method according to claim 1, wherein that angular errors are established and stored as differences between the actual changes and the associated intended changes, a matrix being formed and logged using the detected angular errors. 4. The method according to claim 3, wherein, after the angular errors are determined, a comparison is performed, in which the angular errors are compared to a pre-selectable limiting value, which is greater than or equal to 0째. 5. The method according to claim 4, wherein measures to compensate for at least part of the angular errors are performed if the angular errors are greater than the pre-selectable limiting values. 6. The method according to claim 5, wherein the measures to compensate for the angular errors comprise a change of the implementation or positioning of at least one of the components which cause the angular errors. 7. The method according to claim 5, wherein, after an angular error is compensated for, one or more further determination procedures and comparisons and, if necessary, further measures to compensate for the angular error after each comparison are performed. 8. The method according to claim 5, wherein the measures to compensate for at least part of the angular errors are performed using a computer. 9. The method according to claim 1, wherein, before the first determination procedure is performed, the spatial axial deviation of a main measurement axis of the angular measurement device from the main axis is determined, and measures to compensate for this axial deviation are performed. 10. The method according to claim 9, wherein the measures to compensate for the axial deviation include a change of the positioning of the optical-electronic angular measurement device. 11. The method according to claim 9, wherein the measures to compensate for the axial deviation are performed using a computer while the actual changes of the angle are determined. 12. The method according to claim 1, wherein the method is performed at least semi-automated, but with the possibility of a manual intervention with the aid of an input unit and preferably a display unit. 13. The method according to claim 1, wherein data is retained in a storage unit or in a hard copy using a printer unit. 14. The method according to claim 1, wherein a linkage to an external system is performed with the aid of a PSD device. 15. A device for testing a system wherein the system comprises a sensor or effector having a main axis, a receiver to which the sensor or effector is attached, the receiver being rotatable directly about a first axis of rotation and indirectly about at least one further axis of rotation, a coder device providing intended angles of the main axis for any of a plurality of positions of the receiver, and wherein the inaccuracies resulting, for each position of the receiver in an angle difference between the actual angle of the main axis and the intended angle of the main axis, the device having means for testing a system before it is operational by detecting internal defaults due to manufacturing and mounting inaccuracies, and an optical-electronic angular measurement device, attachable to the receiver, the measurement device having at least two measurement axes, to detect the actual changes of the spatial angle of the main axis during rotations around only one of the axes of rotation, and a storage unit to store the intended changes and the associated actual changes. 16. The device according to claim 15, wherein the optical-electronic angular measurement device has a total of three measurement axes, which are preferably orthogonal to one another, and is preferably attachable to the receiver in such a way that, within the scope of typical manufacturing and mounting precision, one of the measurement axes is coincident at least in direction with the main axis. 17. The device according to claim 15, wherein the angular measurement device has a laser gyro. 18. The device according to claim 15, wherein the device includes a data processing system, having a computer unit for calculating angular errors as differences between the actual changes determined by the angular measurement device and the intended changes provided by the coder device. 19. The device according to claim 18, wherein the computer unit is implemented for the purpose of establishing an angular error difference between a calculated angular error and a pre-selectable limiting value. 20. The device according to claim 17, wherein the computer unit is implemented for the purpose of producing a matrix on the basis of the actual changes and intended changes. 21. The device according to claim 17, wherein the data processing system has a printer unit in order to produce hard copies of at least part of the established data. 22. The device according to claim 17, wherein the data processing system has an input unit to control functions of the coder device or of the angular measurement device or of the data processing system. 23. The device according to claim 15, wherein the device is de-coupled from external positioning devices. 24. The device according to claim 15, wherein the device may be coupled to an external positioning device using a PSD device. 25. A use of the device according to claim 15, wherein a carrier base, onto which the receiver is attached via a carrier, is directly or indirectly attachable to a movable mounting surface. 26. A use of the device according to claim 15, wherein the receiver, the carrier, and the carrier base, are parts of a tracking device, which is intended for the purpose of being aligned with the position of an external object through correlation of the main axis. 27. The use according to claim 26, wherein the tracking device is an optical tracking device and the main axis is the main axis of an image recording device which forms the sensor. 28. The use according to claim 26, wherein the tracking device is an artillery weapon and the main axis is the main axis of a weapon barrel which forms the effector.
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이 특허에 인용된 특허 (10)
Toth Peter (Kloten CHX) Schueepp Peter (Illnau CHX), Aligning method for a fire control device and apparatus for carrying out the alignment method.
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