SEMERCIGIL, S.; MCLACHLAN, K.; POPPLEWELL, N. A non-contacting optical displacement transducer. Canadian Acoustics, [S. l.], v. 14, n. 2, p. 3–11, 1986. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/558. Acesso em: 22 apr. 2024.