Portable instrument for measuring gas concentration

Abstract

Disclosed is a portable instrument for measuring gas concentration. A laser unit provides a laser beam required for laser spectral absorption. An optical unit includes a gas absorption cell (100). The gas absorption cell (100) includes a first reflective mirror (110), a second reflective mirror (120) and a cell tube (130), the first reflective mirror (110) and the second reflective mirror (120) are respectively connected to opposite ends of the cell tube (130). When the laser unit emits a laser beam, an optical path is formed between the first reflective mirror (110) and the second reflective mirror (120) within the cell tube (130). A heat recovery unit recycles heat generated by an electronic system unit (200) to the optical unit.

Dependencies are inferred from the claim text.