Method and apparatus for sensing a sample

    公开(公告)号:US10365252B2

    公开(公告)日:2019-07-30

    申请号:US15430719

    申请日:2017-02-13

    IPC分类号: G01N29/24 G01N21/17

    摘要: There is provided a method for sensing a sample. The method includes the following steps: first a light beam is directed onto the sample. The sample transmits at least a portion of the light beam to form a transmitted light beam. Next, the transmitted light beam is received at an acoustic transducer. The acoustic transducer absorbs at least a portion of the transmitted light beam and in response generated an acoustic wave. Subsequently, an electrical signal is generated at the acoustic transducer. The electrical signal is generated based on at least a portion of the acoustic wave.