Ajith Prasad, K. C; Nampoori, V. P. N; Vallabhan, C. P. G
(Indian Institute of Astrophysics, Bangalore, 1991)
The design and frabication of a Helmholtz type gas phase photoacoustic cell are described. The cell which incorporates a miniature microphone (Knowles B.T.1759) along with a matching pre-amplifier is very sensitive and can ...