发明名称 |
Method and arrangement for determining the absolute humidity of gases |
摘要 |
In such a method or in such an arrangement, a laser beam is emitted within a prescribed frequency spectrum and split into a measurment beam, which passes through the gas to be investigated, and a reference beam. The intensities of these component beams and the intensity of the radiation reflected out of the gas to be investigated are measured by detectors and fed to a computer, and the absorption of the gas to be investigated is determined as a function of a comparison of the measured values of intensity in a frequency range characteristic of water, and as a function thereof the absolute humidity is determined. The measurement beam is moved cyclically in order to scan a sector of area transverse to the direction of transmission of the measurement beam with the aid of a scanner device, and the moving transmission and reflection beams are captured by detectors after exiting from the gas to be investigated, and the measured values are fed to the computer.
|
申请公布号 |
DE3413914(A1) |
申请公布日期 |
1985.10.24 |
申请号 |
DE19843413914 |
申请日期 |
1984.04.13 |
申请人 |
PIPELINE ENGINEERING GESELLSCHAFT FUER PLANUNG,BAU- UND BETRIEBSUEBERWACHUNG VON FERNLEITUNGEN MBH |
发明人 |
CVETKOVIC,NEBOJSA,DIPL.-PHYS. |
分类号 |
G01N21/31;G01N21/3504;G01N21/39;G01N21/53;(IPC1-7):G01N21/31 |
主分类号 |
G01N21/31 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|