JPH1054699A - Inspection device for functions of airframe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an infrared ray light source and the weight of an airframe main body from affecting the load of a driving device, and make the device smaller and light-weight. SOLUTION: An airframe main body 11 is mounted on an airframe fixing table 18, and a pedestal 16 is arranged directly under an airframe seeker 12 at the tip of the airframe main body 11, and a flat mirror 13 which is pinched and fixed by the pedestal 16, is provided. On the pedestal 16, an off-axis concave mirror 14 which is attached to an arm 15, is fixed, and following a movement of the pedestal 16 in the horizontal direction, the off-axis concave mirror 14 is interlocked with the movement. Also, the pedestal 16 is mounted on a turntable 19, and the turntable 19 rotates in the horizontal direction by interlocking with the driving of a motor 20, and the pedestal 16 which is mounted on the turntable 19 also rotates following the movement of the turntable 19. Also, directly under the pedestal 16, a blackbody furnace 21 is provided, and infrared rays are irradiated to the flat mirror 13 which is located directly above, through an aperture 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a function checking device for checking a target capturing and tracking function of a flying object of an infrared guidance type and a guidance control arithmetic function.

[0002]

2. Description of the Related Art Conventionally, in a flying object that detects and traverses a target by detecting infrared rays emitted from the target, its main functions include a target capturing and tracking function and a guidance control calculation function. FIG. 5 shows a conventional flying object function checking device for checking these functions.

As shown in FIG. 5, a flying object fixing stand 7 is provided on an upper surface of a flying object function inspection device main body 6.
The flying object main body 1 is mounted on the flying object fixing stand 7. The flying object seeker 2 provided at the tip of the flying object main body 1 detects the target infrared ray and captures and tracks the target. An infrared light source 3 is used as the pseudo target. This infrared light source 3 is a black body furnace,
An aperture and a collimator are built in, and the infrared rays radiated from the black body furnace are squeezed by the aperture, converted into parallel light by the collimator, and projected to the flying object seeker 2. The infrared light source 3 is linked to an arm rotation shaft 5 attached to the inspection device main body 6 and an arm 4 that rotates by the rotation of the arm rotation shaft 5.

[0004] When a motor or the like is driven, the arm rotation shaft 5 rotates, and the arm 4 and the infrared light source 3 move in the horizontal direction by several tens of degrees / s in conjunction with the arm rotation shaft 5.
The angular velocity and the sine wave-shaped rotational movement within the range of ± several tens of degrees change the visual line angle of infrared rays viewed from the flying object seeker 2. Then, the operation of the target capturing and tracking function and the guidance control calculation function by the flying object seeker 2 with respect to the change of the line-of-sight angle of the infrared rays is checked, and whether or not these functions are deteriorated is checked.

In addition, by rotating the main body of the flying object while fixing the infrared light source, which is a pseudo target, the visual line angle of the infrared ray viewed from the flying object seeker can be similarly changed to check the function. It is.

[0006]

In the conventional flying object function inspection apparatus described above, it is necessary to move the flying object body or the target in a sine wave shape. However, in order to move the flying object body or the target in a sine wave shape, several times more torque is required for the driving device than in the case of moving at a constant speed. In this case, the size of the drive is affected by the weight of the projectile body or target, i.e. the infrared light source,
When trying to move them with a certain amount of momentum, the load on the driving device increases as the weight increases, and as a result, the size of the entire inspection device tends to be large. Such a large-scale inspection cannot be realized,
Could not respond to reduction in size and weight.

Further, in the future, flying vehicles will be required to track a target with a higher maneuverability at a high speed, and it will be necessary to confirm that there is no deterioration in the guidance control arithmetic function even after delivery. Will be needed.

The present invention has been proposed in view of such circumstances, and it is an object of the present invention to reduce the size of the infrared light source and the weight of the flying object body without affecting the load on the driving device. It is an object of the present invention to provide a flying object function inspection device that can respond to the following.

[0009]

A flying object function inspection apparatus according to the present invention is a flying object function inspection apparatus for inspecting the function of a flying object that captures and tracks a target with a flying object seeker. An inspection device main body that holds the flying object, an infrared light source that is provided fixed to the inspection device main body and emits a pseudo target infrared light, and is rotatably held by the inspection device main body and emitted from the infrared light source. A first reflecting mirror for reflecting infrared light forward of the flying object seeker, and a first reflecting mirror provided at a position in front of the flying object seeker so as to move within a certain range in conjunction with the first reflecting mirror; A second reflecting mirror that further reflects the infrared light reflected by the reflecting mirror and irradiates the flying object seeker; and a driving unit that rotationally drives the first reflecting mirror and the second reflecting mirror within a certain range. That I have And butterflies.

The flying object function inspection device according to the present invention
With the above configuration, the following operations and effects are obtained. Infrared light is emitted from an infrared light source fixed to the main body of the function inspection device, which is a pseudo target, and the emitted infrared light is incident on the first reflecting mirror. The infrared light incident on the first reflecting mirror is reflected forward of the flying object seeker, is incident on the second movable reflecting mirror, is further reflected, and is irradiated on the flying object seeker. The illuminated infrared light is detected by the flying object seeker.

When the flying object seeker is irradiated through the first reflecting mirror and the second reflecting mirror, the driving means is driven to rotate within a certain range so that the first and second reflecting mirrors are driven. The reflecting device by means of a rotational movement in a certain range. The rotational movement changes the incident angle of the infrared light incident on the flying object seeker, and the flying object seeker detects the infrared light whose incident angle changes, thereby exhibiting a target capturing and tracking function and a guidance control calculation function. By checking the operation of the flying object functions, it is possible to confirm whether or not these functions have deteriorated.

According to this device, the infrared light source and the flying object itself need not be rotated in a certain range, and the reflecting device by the first and second reflecting mirrors can be rotated in a certain range to make the infrared light source. In addition, the same effect as the effect of changing the visual line angle with respect to the flying object seeker when driving the flying object main body can be obtained. Therefore, the weight of the infrared light source and the flying object main body does not affect the load of the driving device, and the torque of the driving device portion can be small.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram schematically showing a flying object inspection device. As shown in FIG.
A flying object fixing stand 18 is provided on the upper surface of the inspection device main body 17, and the flying object main body 11 is mounted on the flying object fixing stand 18. A flying object seeker 12 for detecting infrared rays emitted from a target is provided at the tip of the flying object body 11, and a gantry 16 is installed directly below the flying object seeker 12, and is sandwiched between the gantry 16. There is a fixed plane mirror 13. An arm 15 is fixed to a portion of the gantry 16 protruding from the inspection device main body 17.
The 0 cm off-axis concave mirror 14 is fixed,
The arm 15 and the off-axis concave mirror 14 are interlocked with each other in accordance with the rotational movement in the horizontal direction.

FIG. 2 shows the configuration of the reflector of the above-mentioned flying object inspection device, a driving device for rotating the reflector, and the like. The gantry 16 is mounted on a turntable 19. The turntable 19 is adapted to be rotated by the drive of a motor 20, and the gantry 16 mounted on the turntable 19 also moves in accordance therewith. A blackbody furnace 21 is provided directly below the gantry 16 as an infrared light source, and radiates infrared rays to a plane mirror 13 located directly above via an aperture 22.

The operation of the above embodiment will be described in detail with reference to FIG. First, as shown in FIG.
Place a flying object on which the function is to be checked. At the time of mounting, the flying object seeker 12 provided at the tip of the flying object main body 11 is installed so as to be located directly above the gantry 16.

Next, a blackbody furnace 21 having a radiation temperature of about 1000 K
Radiates infrared rays from Here, a black body furnace refers to a radiation source that can be approximated to a black body in radiation theory, and a black body refers to an object that absorbs all the energy of radiation incident from the outside. The infrared rays radiated from the blackbody furnace 21 are transmitted to an aperture 22 installed above the blackbody furnace 21.
Then, the light is reflected by the plane mirror 13 and enters the off-axis concave mirror 14.

FIG. 3 shows the path of the infrared light that enters the off-axis concave mirror 14 and reflects it. Here, the plane mirror 13 is omitted. As shown in FIG. 3, the infrared light emitted from the black body furnace 21 as the infrared light source has a certain solid angle viewed from the light source. Further, the focal length of the flying object seeker 12 can be regarded as infinite from the target distance actually captured by the flying object, and the incident infrared rays need to be parallel light. For this reason, the infrared ray having a solid angle is incident on the off-axis concave mirror 14, where the mismatch between the optical axes of the incident light and the reflected light is corrected, and is converted into parallel light by a function as a collimator. The infrared light converted into the parallel light is projected on the flying object seeker 12, and the flying object seeker 12 detects the infrared light and performs target acquisition tracking and guidance control calculation.

As described above, the infrared radiation radiated from the black body furnace 21, which is a pseudo target, is projected onto the flying object seeker 12 through the aperture 22, the plane mirror 13, and the off-axis concave mirror 14, but In order to measure the operation of the target capturing and tracking function of the body and the operation of the guidance control calculation function, it is necessary to change the angle of incidence when projected onto the flying object seeker 12. The plane mirror 13 is interlocked with the off-axis concave mirror 14 in the horizontal direction. To rotate these reflectors,
A turntable 19 attached to the motor 20 is rotated by a motor 20 having a torque of about 10 kgf · cm and a power of about 10 W at an angular velocity of several tens of degrees / s and a range of several tens of degrees. Due to this rotation, the gantry 16, the plane mirror 13, and the off-axis concave mirror 14, which are fixed to the turntable, are rotated in the horizontal direction in conjunction with each other.

FIG. 4 is a top view of the function inspection device showing the horizontal rotation operation. In FIG. 4, when the plane mirror 13 is rotated to the left in the drawing and is at the position 13a,
The off-axis concave mirror 14 provided via the arm 15 is also located at 14a. From this state, the motor 20 is driven to rotate the turntable 19 clockwise,
When the plane mirror 13 is rotated from the position 13a to the position 13c, the off-axis concave mirror 14
It moves horizontally from the position a to the position 14c. The interlocking of the plane mirror 13 and the off-axis concave mirror 14 keeps the infrared light reflected from the off-axis concave mirror 14 parallel. The moving angle of these reflectors is ± 1
It is in the range of 0%, and moves in a sine wave shape to check the function of the flying object. By this movement, the angle of incidence on the flying object seeker 12 can be changed as described above.
It is possible to confirm whether or not these functions are degraded by exerting the target capturing / tracking function and the guidance control calculation function and checking their operations.

The present invention is not limited to the above embodiment. For example, although an off-axis concave mirror is used to convert infrared light having a solid angle into parallel light, any reflecting mirror that can convert the light into parallel light may be used.

[0021]

As described above, according to the present invention, the same effect can be obtained by driving the infrared light source and the flying object body by interlocking the reflecting devices of the two reflecting mirrors with the driving device such as the motor. Therefore, only the weight of the reflecting device by the two reflecting mirrors affects the load of the driving device, and the weight of the infrared light source and the flying object main body does not affect the load of the driving device.

[Brief description of the drawings]

FIG. 1 is a diagram showing an entire configuration of a flying object function inspection device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the flying object function inspection device in the embodiment.

FIG. 3 is a diagram showing an optical path of infrared light of the flying object function inspection device in the embodiment.

FIG. 4 is a view showing a horizontal rotation operation of a plane mirror and a concave mirror of the flying object function inspection device in the embodiment.

FIG. 5 is a diagram showing an entire configuration of a conventional flying object function inspection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flying object main body 2 Flying object seeker 3 Infrared light source 4 Arm 5 Arm rotation axis 6 Inspection device main body 7 Flying object fixing stand 11 Flying object main body 12 Flying object seeker 13, 13a, 13b, 13c Plane mirror 14, 14a , 14b, 14c Off-axis concave mirror 15 Arm 16 Mount 17 Inspection device body 18 Flying object fixing stand 19 Turntable 20 Motor 21 Black body furnace 22 Aperture

Claims (1)

[Claims] 1. A flying object function inspection device for capturing a target with a flying object seeker and inspecting a function of the flying object to be tracked, wherein: an inspection device main body holding the flying object; and the inspection device main body. An infrared light source that is fixedly provided and emits infrared light that is a pseudo target, and is rotatably held by the inspection device main body, and reflects infrared light emitted from the infrared light source forward of the flying object seeker. One reflector, provided in a position in front of the flying object seeker to move a certain range in conjunction with the first reflector, further reflecting the infrared light reflected by the first reflector A flying object function comprising: a second reflecting mirror that irradiates the flying object seeker; and a driving unit that rotationally drives the first reflecting mirror and the second reflecting mirror within a predetermined range. Inspection device.