Workpiece bearing platform and heating device for testing reflectivity of wave absorbing material

Abstract

The invention discloses a workpiece bearing platform and a heating device for testing reflectivity of a wave absorbing material. The workpiece bearing platform comprises a support column and a bearingplatform connected to the top of the support column, wherein the bearing platform comprises a lower bottom plate, an intermediate heat insulation piece and a test back plate for bearing a sample plate to be tested; the test back plate is supported on the lower bottom plate through the intermediate heat insulation piece; the lower bottom plate is connected to the support column; the periphery of the intermediate heat insulation piece is coated with a wave absorbing enclosure plate; the heating device comprises a manipulator, a heating furnace with a hearth and a workpiece bearing platform; a furnace opening with a downward opening is formed in the hearth; and the manipulator is connected with the heating furnace and can drive the heating furnace to move, so as to enable the workpiece bearing platform to extend into the furnace opening or enable the workpiece bearing platform to withdraw away from the furnace opening. The device has the advantages of good heat preservation performance,high heating efficiency, good heating uniformity, safe and reliable use, capability of greatly improving testing precision and the like.

Description

technical field

[0001] The invention relates to the technical field of microwave testing equipment, in particular to a workpiece support platform and a heating device for testing the reflectivity of a microwave-absorbing material. Background technique

[0002] Radar absorbing materials (referred to as absorbing materials) are widely used in civil and military fields, and radar reflectivity (referred to as reflectivity) is an important index parameter used to evaluate the absorbing performance of absorbing materials. The reflectivity measurement technology of absorbing materials at room temperature is relatively mature and has been widely used. However, as engines, high-speed aircraft and high-power microwave devices increase the temperature resistance of absorbing materials, radar The requirements of the reflectivity test system are also getting higher and higher.

[0003] At present, the high-temperature reflectivity test system mainly adopts the method of bottom heating, ...

Examples

Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 As shown, the workpiece support platform used for the reflectivity test of the absorbing material in this embodiment includes a pillar 21 and a carrying platform connected to the top of the pillar 21. The test backplane 24 of the sample board, the test backplane 24 is used to provide the electromagnetic wave reflection backing, the test backplane 24 is supported on the lower bottom plate 22 through the middle heat insulating element 23, the lower bottom plate 22 is connected on the pillar 21, and the middle heat insulating element 23 There are wave-absorbing shrouds 25 wrapped around it. In the workpiece cap, the surrounding of the bearing platform is covered with a wave-absorbing coaming 25, and the wave-absorbing coaming 25 has heat preservation and wave-absorbing functions, which can reduce the background l...

technical field

[0001] The invention relates to the technical field of microwave testing equipment, in particular to a workpiece support platform and a heating device for testing the reflectivity of a microwave-absorbing material. Background technique

[0002] Radar absorbing materials (referred to as absorbing materials) are widely used in civil and military fields, and radar reflectivity (referred to as reflectivity) is an important index parameter used to evaluate the absorbing performance of absorbing materials. The reflectivity measurement technology of absorbing materials at room temperature is relatively mature and has been widely used. However, as engines, high-speed aircraft and high-power microwave devices increase the temperature resistance of absorbing materials, radar The requirements of the reflectivity test system are also getting higher and higher.

[0003] At present, the high-temperature reflectivity test system mainly adopts the method of bottom heating, ...

Examples

Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 As shown, the workpiece support platform used for the reflectivity test of the absorbing material in this embodiment includes a pillar 21 and a carrying platform connected to the top of the pillar 21. The test backplane 24 of the sample board, the test backplane 24 is used to provide the electromagnetic wave reflection backing, the test backplane 24 is supported on the lower bottom plate 22 through the middle heat insulating element 23, the lower bottom plate 22 is connected on the pillar 21, and the middle heat insulating element 23 There are wave-absorbing shrouds 25 wrapped around it. In the workpiece cap, the surrounding of the bearing platform is covered with a wave-absorbing coaming 25, and the wave-absorbing coaming 25 has heat preservation and wave-absorbing functions, which can reduce the background l...

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