The oxygen gas long optical path gas absorption cell is used for spectral analysis and detection of oxygen gas. The main body adopts the Herriot Gas Cell with excellent optical stability, and the auxiliary and high-stability optical packaging structure is mainly composed of the gas chamber cavity, concave reflector, standard optical fiber connector, optical detector, gas inlet and outlet, and shockproof base. The unique suspension circuit design has excellent vibration and temperature stability, can work in various complex environments, and is very suitable for real-time detection of gas lines. It has ultra-low system noise and can be used for trace gas analysis.
产品特点Optical fiber signal input, optical detector electrical signal output、 The gas chamber structure is stable and resistant to vibration, external extrusion, and insensitive to ambient temperature changes、 The optical fiber collimator and detector are directly integrated in the gas chamber, no optical path adjustment is required, and the operation is simple、 The gas chamber is small in size and compact in structure, easy to carry、 Long effective optical path and low noise
产品货号H80060007
应用领域Ultra-high precision gas detection instrument 、 TDLAS extraction analysis
产品单价联系客服询价
到货日期请咨询客服获得货期
产品库存请咨询客服
Daisy
电话:18602170419
邮箱:moli@microphotons.com
相关产品
Parameter
Parameter | Technical specification |
Effective optical path | 20 meters |
Gas volume | 571ml |
Wavelength range | 700-800nm |
Lens coating | AR dielectric film (>99.8%) |
Optical interface | FC/APC |
Gas interface | Φ6 quick plug |
Insertion loss | ≤3dB@760nm 22℃ |
Maximum input optical power | 500mW@760nm |
Operating temperature | -10℃-﹢85℃ |
Dimensions | 339mm*89mm*104mm |
Total product weight | 2700g |
Storage temperature | -40℃-﹢85℃ |
Pressure resistance | 0.7MPa |
Built-in photodetector parameters
Parameter | Symbol | Condition | Indicator | Unit |
Cut-off frequency | Fc | VR=10V | 25 | MHz |
Reverse voltage | Vr | - | ≤20 | V |
Responsivity | S | 750nm 22℃ | 0.5 | A/W |
Dark current | ID | Tc=22℃,VR=10V | ≤2 | nA |
Junction capacitance | Ct | VR=10V,f=1MHz | 3 | pF |
Methods used
Used with our voltage conversion module, the connection is as follows:
The voltage conversion module needs to be loaded with ±12V DC voltage at the same time to work.
Laboratory testing of methane concentration
Line connection:
(1) Connect the power cord and USB cable to the TDLAS control box
(2) Connect the voltage conversion module to the +-12V power supply
(3) Connect the LASER OUT end of the control box to the optical path cell input fiber port
(4) Connect the output end of the optical path cell to the input end of the voltage conversion module
(5) Connect the output end of the voltage conversion module to the PREAMP end of the control box (i.e., the preamplifier end)
(6) Connect TRIG OUT to oscilloscope channel 1
(7) Connect DAC OUT to oscilloscope channel 2
(8) Turn on the laser and observe the second harmonic signal of oxygen absorption on the oscilloscope
Ordering Information
PL-20-760-AR6-SA-SMA Effective optical path: 20: 20 meters
Working wavelength: 760: 700-800nm,
Lens coating: AR: AR dielectric film (>99.8%), Fiber type and interface: SA: HP780, FC/APC Export: SMA
新品推荐