A flexible memory alloy support device for a small-caliber light mirror

A memory alloy, supporting device technology, applied in measuring devices, installations, force/torque/work measuring instruments, etc., can solve the problems of high precision of mirror surface type and assembly process requirements, achieve weight reduction, simplify overall structure, and avoid stress concentrated effect

Active Publication Date: 2021-06-01
HANGZHOU DIANZI UNIV
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the existing technology is difficult to ensure the surface accuracy of the reflector under the working conditions of self-weight and temperature changes and the high requirements for the assembly process, the present invention provides a flexible memory alloy support device for small-caliber light-weight reflectors

Method used

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  • A flexible memory alloy support device for a small-caliber light mirror
  • A flexible memory alloy support device for a small-caliber light mirror
  • A flexible memory alloy support device for a small-caliber light mirror

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Embodiment Construction

[0043] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0044] Such as figure 1 , 2 Shown in and 3, a flexible memory alloy support device for a small-caliber lightweight reflector includes a flexible support unit 2, a pressure sensor 8, a memory alloy fine-tuning unit 22, a support base 4, a fixing unit 5 and a computer. The end surface of the support base 4 is provided with concentrically distributed n weight-reducing groove groups, n≥5; the weight-reducing groove group includes k weight-reducing grooves uniformly distributed along the circumferential direction, k≥6; the innermost weight-reducing groove The weight-reducing grooves of the first group are fan-shaped, and the weight-reducing grooves of the other groups of weight-reducing grooves are fan-shaped; the joints of the two radii of the fan-shaped weight-reducing grooves and the joints of each radius and the arc are provided with a transition fillet ...

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Abstract

The invention discloses a flexible memory alloy supporting device for a small-diameter light reflector. It is difficult to ensure the surface accuracy and assembly requirements of the mirror under the working conditions of self-weight and temperature changes at the same time with the existing mirror support method. In the present invention, a boss is set on the supporting base, and a flexible support unit and a memory alloy fine-tuning unit are arranged on the boss; both ends of the memory alloy wire of the memory alloy fine-tuning unit are fixed with wire joints; all pressure sensors of the memory alloy fine-tuning unit are The detected pressure signal is sent to the computer, and the electric current passing through the wire joints of all memory alloy fine-tuning units is controlled by the computer. In the present invention, the computer controls the magnitude of the current passed by each wire joint to heat and deform the memory alloy wires at different support points, and controls the micro-deformation of the memory alloy wires, thereby controlling the pressure value of each support point and effectively coordinating the surface shape accuracy of the mirror surface influences.

Description

technical field [0001] The invention belongs to the field of imaging of space optics mirrors, and in particular relates to a flexible memory alloy support device for small-caliber light mirrors. Background technique [0002] With the continuous development and innovation of science, the accuracy requirements of mirror detection are continuously improved, and the use of optical mirrors is becoming more and more extensive. The precision requirements of small mirrors need to be improved. As the most important optical component in the photoelectric detection equipment, the diameter and weight of the main reflector, self-weight, thermal deformation, etc. have more and more serious effects on the surface shape accuracy of the reflector, resulting in a decrease in the imaging quality of the space remote sensor. [0003] Small-aperture space optical mirrors are usually mounted on the main structure of the space remote sensor by forming a mirror assembly through a support structure. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/182G01L5/00
Inventor 李蓉杨树玄林卫睢娟张巨勇陈志平
Owner HANGZHOU DIANZI UNIV
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