| 摘要: | 世界上有很多植物研究，在涉及相當大的研究經費開發相關技術的國家中，主要因素是自動化管理為主軸，然而，本論文提出了“利用折射率檢測法在水耕植物之水質檢測研究”，不需要添加化學物質作為催化劑，或使用光譜儀器測量，即時測量和便宜的測量等優點。
在LED植物工廠進行的研究大多採用水耕方法進行營養管理和病蟲害預防。特別是，在營養管理中，可以測量液體電解質以確定含水營養物濃度和吸收率以及電導度（EC）和氫離子指數(pH)變化。精確控制含水量對於大規模健康植物生產至關重要。然而，在大多數當前的電導度測量中，電極適用於確定營養添加劑濃度。這種方法在某些情況下可能是有問題的，例如電極靈敏度低，導致營養過量，特別是在非導電添加劑中，並阻礙植物生長。因此，本論文提出了一種測量水中電導度的光學方法。在這種方法中，共光程外差干涉(HI)測量的高靈敏度被納入水分測量中，以防止干擾電極上的雜質而導致的誤差，並提高測量和分析精度。用於EC測量的傳感器的靈敏度可以達到2300°/ mS·cm-1。該方法具有簡單的光學設置，高穩定性等優點，測量精度高，解析度高，測量快速，操作簡單。另外，它的可行性也被證明了。
然而進階研究量測時，曾經設想將長條稜鏡雙邊鍍膜，發現若採取雙邊鍍膜量測情況下面臨許多問題，首先反射次數過多會造成衰減過大，使量測結果不明顯，或是相位差反應超過360度，造成量測誤判。
因此，如何開發高靈敏度，高解析度的光電生化傳感器已成為一個非常重要的發展目標。這提出了一種表現出即時和簡單測量性能的光電生物傳感器。基於表面電漿共振原理，所提出的生物傳感器利用測試流體和金屬膜之間的粘附活性。當光透過金屬膜時發生金屬衰減全反射（ATR），導致光強度的波動。因此，流體性質可以通過測量離開流體的光的強度來確定。因為向所提議的生物傳感器添加化學物質或試劑是不必要的，所以在測量過程中測量樣品的性質不受影響。其強度的靈敏度達到6.1202（mw /折射率）。
;There are many plant studies in the world. In the countries of using considerable research funds to develop related technology, the main factor is focused on automated management. But this paper proposed "Study on water quality detection of hydroponic plants using the method of measuring refractive index ", don’t need to add chemicals as a catalyst or use spectrum instrument to measure, have advantages of immediate and inexpensive measurement.
The study conducted on light emitting diode plant factories have mostly adopted hydroponics for convenient nutrient management and pest and disease prevention. In particular, in nutrient management, liquid electrolytes can be measured to determine the aqueous nutrient concentrations and absorption rates as well as electrical conductivity (EC) and pH variations. Precisely controlling the aqueous nutrient contents is crucial to large-scale healthy plant production. However, in most of the current conductivity measurements, electrodes are adapted for determining the nutrient additive concentrations. This approach can be problematic in some cases, such as low electrode sensitivity, which results in nutrient overdose, specifically in nonconductive additives, and hinders plant growth. Therefore, this paper proposes an optical method for measuring the aqueous nutrient contents. In this method, the high sensitivity of common-path heterodyne interferometry is incorporated into aqueous measurements to prevent errors caused by interfering impurities on the electrodes and improve measurement and analytical accuracy. The sensitivity of the sensor used in EC measurements can reach 2300°/mS·cm-1. The method has some merits, e.g., a simple optical setup, high stability etc., high measurement accuracy, high resolution, rapid measurement, and easy operation. In addition, its feasibility is demonstrated.
Undergoing the advanced study, it would be found that there were many questions if the two long sides were coated thin-film metals. One was that the measured signal was very weak because of much attenuation. Besides, the measured phase difference could be more than 360 degrees. It would result in the measurement misjudgment.
Therefore, how to develop a high sensitivity and high resolution photoelectric biochemical sensor becomes a very important development goal. This proposes a photoelectric biosensor exhibiting instantaneous and simple measurement properties. On the basis of surface plasmon resonance principles, the proposed biosensor capitalizes on the adhesion activity between test fluids and metal films. Attenuated total reflection (ATR) occurs when light permeates metal films, resulting in a fluctuation in light intensity. Thus, the fluid properties can be determined by measuring the intensity of the light that exits the fluid. Because adding chemicals or agents to the proposed biosensor is unnecessary, the properties of the measured sample are unaffected during measurements. The sensitivity of its strength reached 6.1202 (mw/refractive index). |
