Gasera’s PA201 custom gas cell is designed for laboratory measurements and it can be easily tailored for different types of light sources such as the near infrared distributed feedback laser (DFB), the quantum cascade laser (QCL) and the optical parametric oscillator (OPO).Gasera 的 PA201 定制氣體電池是專為實驗室測量, 它可以很容易地為不同類型的光源, 如近紅外分布反饋激光器 (DFB), 量子級聯激光器 (QCL) 和光學參數振蕩器 (OPO)。
Laser photoacoustic spectroscopy (LPAS) is highly attractive method for trace gas analysis due to the high sensitivity, linearity, and low sample gas volume. Tunable laser sources provide high selectivity and high measurement accuracy due to the zero background nature of the measurement principle. 激光光聲光譜 (LPAS) 是高靈敏度、線性度和低樣本氣量的微量氣體分析的極具吸引力的方法。由于測量原理的零背景特性, 可調諧激光源提供高選擇性和高測量精度。
- Gas cell, stabilized to 50 Celsius temperature?氣體電池, 穩定到50攝氏度溫度
- Measurement pressure: between 300 mbar – 1000 mbar.?測量壓力: 介于300毫巴-1000 毫巴之間。
- Patented ultra-sensitive optical microphone based on a MEMS cantilever sensor coupled with a laser interferometer to measure microscopic movement of the cantilever sensor基于 MEMS 懸臂傳感器耦合激光干涉儀測量懸臂傳感器顯微移動的專利超敏光學麥克風
- Specialised cell design for vibrational noise attenuation振動噪聲衰減的專用單元設計
- Low gas volume (total gas volume of the system is approx. 30 ml)?氣體體積低 (系統總氣量約為30毫升)
- Real-time DSP (digital signal processing) unit for providing an analog and digital output signal proportional to the cantilever movement. Analog signal is connected with BNC output connectors and digital signal uses USB.?實時 DSP (數字信號處理) 單元, 提供模擬和數字輸出信號成正比的懸臂運動。模擬信號與 BNC 輸出連接器連接, 數字信號使用 USB。
- Measurement software for data aquisition via USB?基于 USB 的數據采集測量軟件
- Three gas connections. The sample gas has two connections, one for input and one for output. The input is equipped with a particle filter.?三氣體連接。樣品氣體有兩個連接, 一個用于輸入, 一個用于輸出。輸入配有微粒過濾器。
- Nitrogen purge for measurement compartment?測量隔間的氮氣凈化
- The gas exchange procedure is user configurable by a simple user interface with display and buttons. The gas exchange can be started manually with a press of a button or the controller can be programmed to do it automatically using timer or an external trigger.?氣體交換過程是用戶可配置的一個簡單的用戶界面與顯示和按鈕。氣體交換可以手動啟動, 按下按鈕或控制器可以編程, 以自動使用定時器或外部觸發器。
- Documentation on the measurement principle and the DSP module?測量原理與 DSP 模塊的文獻資料
- Documented instructions on how to use the PA gas cell and the DSP unit?關于如何使用 PA 氣體電池和 DSP 單元的文件說明
- Detection limit: Gas and light source dependent. Typically in the ppb -region with NIR diode lasers and ppt-region with MIR quantum cascade lasers.?檢測極限: 氣體和光源依賴。典型地在 ppb 區域以近紅外二極管激光器和 ppt 區域與和平號量子級聯激光器。
- Optical path length: 100 mm at optical axis?光路長度: 100 毫米在光學軸上
- Repeatability: < 1 % of measured value in operational conditions at the calibration concentration (light source dependent)?重復性: 1% 測量值在操作的情況在定標集中 (光源依賴)主要應用：邊界安全