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Sunday, July 26, 2020 | History

3 edition of Design of a flexure mount for optics in dynamic and cryogenic environments found in the catalog.

Design of a flexure mount for optics in dynamic and cryogenic environments

Design of a flexure mount for optics in dynamic and cryogenic environments

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  • 38 Currently reading

Published by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Service, distributor in Moffett Field, Calif, [Springfield, Va .
Written in English


Edition Notes

StatementLloyd Wayne Pollard
SeriesNASA contractor report -- 177495, NASA contractor report -- NASA CR-177495
ContributionsAmes Research Center
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14976031M

PI's piezo flexure stages combine sub-nanometer resolution and guiding precision with minimum crosstalk. S Piezo Tip/Tilt Platform The minimum mass inertia and the identical design of all axes allow fast, dynamic, and nevertheless precision motion. Download datasheet Go to specifications Specifications. Datasheet. Exploded view of the P QuickLock adapter with P PIFOC (mounting tools in the scope of delivery) Highly dynamic positioning and scanning for large objectives Resonant frequency Hz; Hz with g objective mass.

  Piezo-driven adjustment of a cryogenic detector Piezo-driven adjustment of a cryogenic detector Pragt, Johan H.; Ochs, Jean-Baptiste ABSTRACT This paper presents the specifications, design, construction and evaluation of a piezo-driven tip/tilt/focus mechanism which can align a detector or any other optical component in a cryogenic environment. Data Required to Select or Design a Vibration/Shock Isolator — As with any engineering activity, the selection or design of an isolator is only as good as the information on which that selection or design is based. Figure 13 is an example of one available LORD checklist for isolator applications (click on image for actual questionnaire).

Course Description This course presents the use of finite element methods to model and predict the behavior of optical elements and support structures including lenses, mirrors, windows, and optical mounts in the presence of mechanical and environmental loads. The actuation principle is inertia stick-slip; This piezo based principle is ideally suited for this application because of its very low dissipation and micrometer resolution over a very large stroke of up to mm. The piezo is integrated in a monolithic flexure mechanism ensures compressive tension the piezo, the pretension force on the friction contact and the play free.


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Design of a flexure mount for optics in dynamic and cryogenic environments Download PDF EPUB FB2

The design of a flexure mount for a mirror operating in a cryogenic environment is presented. This structure represents a design effort recently submitted to NASA Ames for the support of the primary mirror of the Space Infrared Telescope Facility (SIRTF). Get this from a library.

Design of a flexure mount for optics in dynamic and cryogenic environments. [Lloyd Wayne Pollard; Ames Research Center.]. flexure design Download flexure design or read online here in PDF or EPUB.

Please click button to get flexure design book now. All books are in clear copy here, and all files are secure so don't worry about it. This site is like a library, you could find million book here by using search box in the widget.

Thanks to these unique properties flexure mechanisms have become an inescapable technology in all environments where friction, lubrication, wear, debris or mechanical backlash are forbidden: outer space, vacuum, cryogenics, high radiation, ultra-clean environments, etc.

This book comes within the scope of this technological by: 8. The mount can realize great releasement of thermal stress effect on primary mirror caused by CTE (Coefficient of Thermal Expansion) mismatch between baseplate and mirror at cryogenic temperature.

Based on principles of kinematic design, the paper firstly proposes a mount configuration with three pods arranged with inclined : Tonglong Huo, Jingjun Yu, Hongzhe Zhao. 5- Flexure Mounts. A three-point flexure mount is shown in figure 7. This flexure mount was first introduced by Chin to be used in a space telescope.

The flexures can be either tangent bars or cantilever. Tangent bars are connected to the optics from their center. Figure 7: tangent bar and Cantilever mounting of lens. Figure 8 shows a bipod flexure mirror mount. Flexure mountings for mirrors Center-mounts for circular-aperture mirrors Mounting metal mirrors Gravitational effects on small mirrors 8.

Estimation of Contact Stresses in Small Mirrors Compressive stress in axially clamped mirrors Line contact around the mirror edge Fabrication of a Flexure-based Linear Translation Stage with Integrated Optical Position System Philippe Bado1, Ali A. Said1, Mark A. Dugan1 and Yves Bellouard2 1Translume, Phoenix Drive, Ann Arbor, MI, USA 2Mechanical Engineering Dept, Eindhoven University of Technology, Eindhoven, The Netherlands We describe the fabrication and testing of aFile Size: KB.

William J. Rundle, “Design and performance of an optical mount using cross-flexure pivots,” Proc. of SPIE Vol.Precision Engineering and Optomechanics, [] Wouter O. Schotborgh, et al, “Dimensionless design graphs for flexure elements and a comparison between three flexure elements,” Precision Engineer41″47 ().

Though ASTRON is involved in the full realization of instruments from initial design to commissioning, this paper concentrates on the opto-mechanical design of optics mountings, especially for.

Opto-Mechanical Systems Design Third Edition by Paul R Yoder, Jr. Opto-Mechanical Systems Design continues to be the reference of choice for professionals fusing optical and mechanical components into advanced, high-performance instruments.

Features: Offers a detailed overview of the latest developments and technologies in the field of opto-mechanics. A mount for a mountable element includes a frame, and a plurality of flexures supported by the frame. The plurality of flexures are configured to be outwardly extended against a restorative bias, so that the element can be inserted by: 3.

Flexure Mountings for Lenses Mounting Plastic Lenses References 4. Multiple-Component Lens Assemblies Spacer Design and Manufacture Drop-In Assembly Lathe Assembly Elastomeric Mountings Poker-Chip Assembly Assemblies Designed for High-Shock Environments Pollard LW. A flexure mount for optics in dynamic and thermal environments.

Proceedings of the 6th International Congress on Applications of Lasers and Electro-optics. ; View Article PubMed/NCBI Google Scholar 6. Fowler RM, Maselli A, Pluimers P, Magleby SP, Howell by: Entirely updated to cover the latest technology, this second edition gives optical designers and optomechanical engineers a thorough understanding of the principal ways in which optical components--lenses, windows, filters, shells, domes, prisms, and mirrors of all sizes.

Entirely updated to cover the latest technology, this Second Edition gives optical designers and optomechanical engineers a thorough understanding of the principal ways in which optical components - lenses, windows, filters, shells, domes, prisms, and mirrors of all sizes - are mounted in optical with new information on tolerancing 5/5(1).

Positioning of the spectrometer elements and relay optics will be aided by the use of a Coordinate Measuring Machine (CMM) and fiducials on the optics and mounts.

Stray light control Because the optics design is relayed, geoCARB has multiple accessible intermediate images and pupils for efficient baffling. Overview. After nearly two decades, Paul Yoder's Opto-Mechanical Systems Design continues to be the reference of choice for professionals fusing optical and mechanical components into advanced, high-performance instruments.

Yoder's authoritative systems-oriented coverage and down-to-earth approach fosters the deep-seated knowledge needed Price: $   State-of-the-art designs incorporate uniquely designed flexure mechanisms driven by compact and stiff piezoelectric actuators.

This paper surveys key advances in mechanical design and control of dynamic effects and nonlinearities, in the context of high-speed nanopositioning. Future challenges and research topics are also by: A Dimensionless Design Model for Biaxial Cartwheel Flexure Hinges Article in Mechanics Based Design of Structures and Machines 46(4) June with 39 Reads How we measure 'reads'.

Lloyd Wayne Pollard has written: 'Design of a flexure mount for optics in dynamic and cryogenic environments' -- subject(s): Cryogenic temperature, Dynamic loads, Dynamic structural analysis.We report on the design and the modeling of a three-dimensional (3D) printed flexure-based actuation mechanism for robotic microtweezers, the main body of which is a single piece of nylon.

Our design aims to fill a void in sample manipulation between two classes of widely used instruments: nano-scale and macro-scale robotic manipulators. The key component is a uniquely designed cam flexure Cited by: 1.Spaceborn optical payload consists of optical elements supported by mechanical structure in desired orientation.

Mechanical structure made up of various dissimilar materials like aluminum & invar possess dissimilar thermo-elastic behavior. Opto-mechanical assembly subjected to temperature change will results to change in optical element orientation which ultimately leads to change in optical Author: Naimesh Patel, J.B.

Rami, A.P. Vora, C.P. Dewan, D. Subrahmanyam.