Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1988-06-16
1989-09-26
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73 1B, G01N 308
Patent
active
048691100
ABSTRACT:
A non-contact, laser strain extensometer for use in materials testing utilizes a revolving laser beam to measure the separation of benchmarks placed on the specimen to be tested. The reflection of the laser beam from the benchmarks is focused on a photosensor to generate electronic pulses. The time duration between these pulses can be precisely measured using electronic counters. This time duration correlates with the distance separating the benchmarks. The revolving beam can be generated either by rotating polygonal mirror or an oscillating mirror.
REFERENCES:
patent: 3592545 (1971-07-01), Paine
patent: 3765774 (1973-10-01), Petrohilos
patent: 3853406 (1974-12-01), Zanoni
patent: 3856411 (1974-12-01), Zanoni
patent: 3856412 (1974-12-01), Zanoni
patent: 3885424 (1975-05-01), Ryckman et al.
patent: 3885875 (1975-05-01), Rosenfeld et al.
patent: 3905705 (1975-09-01), Petrohilos
patent: 4007992 (1977-02-01), Petrohilos et al.
patent: 4031746 (1977-06-01), Furuta et al.
patent: 4129384 (1978-12-01), Walker et al.
patent: 4199259 (1980-04-01), Harris
patent: 4388832 (1983-01-01), Kaule
patent: 4427296 (1984-01-01), Demarest et al.
patent: 4474466 (1984-10-01), McDonach et al.
patent: 4483618 (1984-11-01), Hamar
patent: 4564765 (1986-01-01), Blaich
Instron Corp. Technical Literature, Instron 4500 Series Universal Testing Instruments.
Kent David L.
Khan Rashid N.
Myracle Jerry W.
Systems Integration Technology, Inc.
LandOfFree
Laser strain extensometer for material testing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser strain extensometer for material testing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser strain extensometer for material testing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180825