JPH0134336B2 - - Google Patents

Info

Publication number
JPH0134336B2
JPH0134336B2 JP16522782A JP16522782A JPH0134336B2 JP H0134336 B2 JPH0134336 B2 JP H0134336B2 JP 16522782 A JP16522782 A JP 16522782A JP 16522782 A JP16522782 A JP 16522782A JP H0134336 B2 JPH0134336 B2 JP H0134336B2
Authority
JP
Japan
Prior art keywords
gas
infrared
measurement signal
measurement
helmholtz resonator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP16522782A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5954950A (ja
Inventor
Masato Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP16522782A priority Critical patent/JPS5954950A/ja
Publication of JPS5954950A publication Critical patent/JPS5954950A/ja
Publication of JPH0134336B2 publication Critical patent/JPH0134336B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/37—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP16522782A 1982-09-22 1982-09-22 赤外線検出器 Granted JPS5954950A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16522782A JPS5954950A (ja) 1982-09-22 1982-09-22 赤外線検出器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16522782A JPS5954950A (ja) 1982-09-22 1982-09-22 赤外線検出器

Publications (2)

Publication Number Publication Date
JPS5954950A JPS5954950A (ja) 1984-03-29
JPH0134336B2 true JPH0134336B2 (enrdf_load_stackoverflow) 1989-07-19

Family

ID=15808268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16522782A Granted JPS5954950A (ja) 1982-09-22 1982-09-22 赤外線検出器

Country Status (1)

Country Link
JP (1) JPS5954950A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5954950A (ja) 1984-03-29

Similar Documents

Publication Publication Date Title
US4594004A (en) Continuous particulate-measuring apparatus using an optoacoustic effect
KR100809130B1 (ko) 광음파 측정 장치
Goldan et al. An acoustically resonant system for detection of low‐level infrared absorption in atmospheric pollutants
US20090025487A1 (en) Apparatus and method for attenuating acoustic waves in propagating within a pipe wall
US4922467A (en) Acoustic detection apparatus
CN107543783A (zh) 一种基于声表面波的pm2.5检测器
JP6840134B2 (ja) ノイズキャンセリング検出器
US8249811B2 (en) Multi-sensor detectors
CN106959171A (zh) 基于超声波、激光吸收光谱技术的温湿度测量方法
US4055764A (en) Optically selective, acoustically resonant gas detecting transducer
MXPA04003765A (es) Medicion ultrasonica del efecto doppler.
JPH07501138A (ja) 時間ゲート超音波センサおよび測定方法
JPH0134336B2 (enrdf_load_stackoverflow)
CN113267453B (zh) 无源音叉共振增强的全光纤三气体探测光声光谱系统及其探测方法
JPH01131413A (ja) 音響ジャイロメーター
JPS623722Y2 (enrdf_load_stackoverflow)
EP2069723B1 (en) Apparatus for attenuating acoustic waves propagating within a pipe wall
RU2089859C1 (ru) Способ определения физических параметров газожидкостных систем и устройство для его осуществления
JPS628514Y2 (enrdf_load_stackoverflow)
JPS60218086A (ja) 距離測定装置
RU232122U1 (ru) Резонансный дифференциальный оптико-акустический детектор
WO2001088550A2 (en) Ultrasound speed measurement of temperature and pressure effects
JPS6067839A (ja) 円筒振動式密度計
SU1377622A1 (ru) Способ определени температуры
SU1480811A1 (ru) Устройство дл измерени скорости кровотока