???????????????
??????????????????????????????????? (NDIR) ????????
??????????????????????????????? (NDIR) ??????????????????????????????????????????? ??????????????????????????????????????????????????? ???????????????????
????????????????????????????????????????????????????????????? ???????????? ?????????????????????????????????????????????????????????????????????????????????????????????????? ??????????????? ???????????????????????????????????? ?????????????????????????????????? ?????????????????????????????????????????????????????????????? ???????????????????????????????? ????????????????????????????????? ?????????????????????????????????????????????????????????????????????? (???????? ?????????????????????? ???????????????????????????????????????????????????????????????????)
Non-dispersive infrared absorption method (NDIR) utilizes this property, the term NDIR has also been long established. Infrared radiation is classified into near-infrared rays, mid-infrared rays, and far-infrared rays corresponding to wavelength. NDIR uses infrared radiation containing wavelengths in mid-infrared radiation of 2.5-25μm to measure the concentration of gas components.
????????????????????? (Non-dispersive) ?????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????????????? ???????????? ???????? (N 2) ??????????????????????? ?????????????????????????????????????????????????????????????????
