Ahlborn B, Dean D, Bressler BH. Measurement of the position and displacement of a light beam with a spiral scanner.
THE REVIEW OF SCIENTIFIC INSTRUMENTS 1978;
49:1407. [PMID:
18698965 DOI:
10.1063/1.1135270]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A rotating spiral scanner interrupts an incident light beam for time intervals which are proportional to the position of the beam. This produces an electrical signal via a photodetector system which is independent of beam intensity. The device was used to measure the relative change in sarcomere spacing during the initial development of tension in a contracting frog sartorius muscle.
Collapse