The design of a photoelastic load cell Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/j9602434s

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • This work shows how a new design in a load cell can be built using the principles of photoelasticity. From photoelasticity one knows that fringes denoting the stress pattern can be observed in a plastic model viewed in a polariscope. Through knowledge of the properties of the material one can determine the load necessary to produce a certain fringe. Two photocells can be used to measure the change in the fringe order. One photocell is used as a reference while the other photocell observes the changing light intensity, coming through a miniature polariscope, caused by the stress pattern. This difference in light intensity can be displayed on a meter which is calibrated to give a reading of the applied load. The stress optic constant varies for the different photoelastic materials giving the load cell several ranges of loading. Also, model size may be varied, giving additional selectivity in the range of loading while keeping the accuracy high. Load ranges may range from 0-2.7 ounces to 0-430 pounds. The load cell is easily calibrated by using dead weights. It is felt that this study has met the need of finding a low cost method of measuring small loads with relatively high accuracy.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-04-14T17:08:02Z (GMT) No. of bitstreams: 1 ZimmermanWilliam1967.pdf: 9619369 bytes, checksum: 9d4b7a3c4148fb8e14eb0b9bbdca48ac (MD5)
  • description.provenance : Submitted by Georgeann Booth (gbscannerosu@gmail.com) on 2014-04-12T00:09:14Z No. of bitstreams: 1 ZimmermanWilliam1967.pdf: 9619369 bytes, checksum: 9d4b7a3c4148fb8e14eb0b9bbdca48ac (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-14T13:16:50Z (GMT) No. of bitstreams: 1 ZimmermanWilliam1967.pdf: 9619369 bytes, checksum: 9d4b7a3c4148fb8e14eb0b9bbdca48ac (MD5)
  • description.provenance : Made available in DSpace on 2014-04-14T17:08:02Z (GMT). No. of bitstreams: 1 ZimmermanWilliam1967.pdf: 9619369 bytes, checksum: 9d4b7a3c4148fb8e14eb0b9bbdca48ac (MD5) Previous issue date: 1966-08-29

Relationships

In Administrative Set:
Last modified: 08/23/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items