Centering device for slow-wave structure and disturbing rod
A slow-wave structure and centering device technology, applied in the field of machinery, can solve the problems of poor power transmission, inconvenient operation, difficult processing, etc., and achieve the effects of improving centering accuracy, convenient use and simple device structure
Active Publication Date: 2012-07-04
NANTONG TAIHE MACHINERY GRP +1
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Problems solved by technology
[0004] In order to overcome the deficiencies in the prior art, such as poor power transmission, difficult processing, high cost, inconvenient operation, and low precision, the present invention proposes a centering device for coupling measurement of traveling wave tubes
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[0078] This embodiment is a centering device for a slow wave structure and a disturbance rod in the coupling measurement of a traveling wave tube. The length of the slow wave structure is 60 mm, and the diameter is 5 mm; the length of the disturbance rod is 200 mm.
[0079] Such as figure 1 and figure 2 As shown, the test device includes a rectangular bottom plate 1, two sets of fixture assemblies and a set of slow-wave structure fixing seats. Two sets of fixture assemblies are installed on both ends of the rectangular bottom plate 1 respectively, and the slow-wave structure fixing seat is located in the middle of the rectangular bottom plate 1 . The distance between the centers of the two sets of fixture components and the center of the slow-wave structure fixing seat is equal to the length of the disturbing rod, and greater than 1 / 2 of the length of the slow-wave structure. In this embodiment, the distances between the center of the two sets of fixture components and the...
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The invention relates to a centering device for a slow-wave structure and a disturbing rod. In the centering device, two sets of clamp components are arranged at the two ends of a bottom plate respectively; a fixed seat of the slow-wave structure is positioned in the middle of the bottom plate; the distance between each center of the two sets of clamp components and the center of the fixed seat of the slow-wave structure is as same as the length of the disturbing rod and is greater than half of the length of the slow-wave structure; an internal frame of each clamp component is positioned in an external frame; V-shaped grooves on the surfaces of the two sides of the bottom of a mobile frame are abutted with V-shaped grooves on an adjusting block and an adapter plate respectively; balls arepositioned in the V-shaped grooves; nuts are arranged on an external frame top plate, an internal frame top plate, an external frame nut supporting plate and an internal frame nut supporting plate respectively; a vertical guide rail is positioned on the internal surface of an external frame guide rail side plate; a horizontal guide rail is positioned on the internal surface of an internal frame bottom plate; and relative motion between the internal frame and the external frame, as well as between the internal frame and a bracket can be implemented through the vertical guide rail and the horizontal guide rail. The centering device has the advantages of improvement on centering precision, capability of keeping the disturbing rod tight, suitability for different types of slow-wave structures, simple structure, convenient use and high adjusting precision.
Description
technical field [0001] The invention relates to the mechanical field, in particular to a centering device for a slow wave structure and a disturbance rod. Background technique [0002] Helical traveling wave tube is a typical microwave amplifier device. Compared with various microwave devices, it not only has the characteristics of broadband, high gain, high frequency and high power, but also has long life, good reliability, small size, The structure is simple and the price is suitable. At present, the most commonly used method in the measurement method of coupling impedance is the non-resonant perturbation method. The test method of non-resonant coupling impedance is to conduct a phase measurement when the disturbance rod does not enter the slow wave structure channel, and record the phase at all frequency points. After the disturbance rod is fixed in the center of the slow wave structure channel, record all frequency points again. The phase under the point, and then calc...
Claims
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IPC IPC(8): G01C15/00
Inventor 杨旭东谭小群杨乾乾苏媛媛
Owner NANTONG TAIHE MACHINERY GRP