4.3 Experimental Setup, Results and Discussion of Nitrate Concentration.

Includes author index.

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Preface; How This Book is Organized; About the Editors; Contents; 1 Determination of NOX and Soot Concentrations Using a Multi-wavelength Opacimeter; Abstract; 1 Introduction; 2 The Opacimeter; 3 Absorption of Particles and Gases; 3.1 Absorption of NO2; 3.2 Extinction of Soot Particles; 4 The Multi-wavelength Approach; 5 Technical Realization; 5.1 Physical Setup; 5.2 Electronic Measurement Circuitry; 5.3 Mathematical Model; 6 Results and Discussion; 6.1 Sensitivity Measurements; 6.2 Mathematical Simulations; 6.3 Discussion; 7 Conclusion; References.

2 Development of the Atomic Emission Spectroscopy System Using Helium-Microwave-Induced Plasma for Fine Particles on Environmental MonitoringAbstract; 1 Introduction; 2 Motivation; 3 Device Designs; 4 Calibration and Evaluation; 5 Measurement and Analysis of Suspended Particles in Atmosphere Using MIP System for Environmental Monitoring; 6 Conclusions; Acknowledgment; References; 3 Real-Time HVAC Sensor Monitoring and Automatic Fault Detection System; Abstract; 1 Introduction; 2 Overview on HVAC Systems, Sensor Monitoring and Fault Detection.

2.3 Laboratory Based Measurement Technique2.4 Market Research; 3 Operating Principle of Interdigital Sensors; 3.1 Interdigital Sensors; 3.2 Novel Planer Interdigital Sensors; 3.3 Electrochemical Impedance Spectroscopy (EIS); 3.4 Basic Principles of EIS; 3.5 Data Presentation in the Form of Nyquist Plot and Bode Plot; 3.6 Randle's Electrochemical Cell Equivalent Circuit Model; 4 Experimental Setup, Results and Discussion; 4.1 Temperature Measurement; 4.1.1 Experimental Setup; 4.1.2 Results and Discussion; 4.2 Humidity Experiment and Result.

3 Sensor Monitoring and Fault Detection Approach in Detail4 Experimental Results; 5 Conclusion and Discussion; References; 4 High Sensitivity Optical Structures for Relative Humidity Sensing; Abstract; 1 Introduction; 2 Materials; 3 Conventional Methods; 4 Optical Fiber Humidity Sensors; 4.1 Evanescent Wave Sensors; 4.2 Lossy Mode Resonances; 4.2.1 Plastic Cladding Removed Multimode Optical Fiber; 4.2.2 Single Mode Optical Fiber; 4.3 Interferometric Sensors; 4.3.1 Fabry-Pèrot Interferometer as Humidity Sensor; 4.4 Long Period Fiber Gratings; 5 Conclusions; References.

5 Oxygen Gas Sensing Technologies Application: A Comprehensive ReviewAbstract; 1 Introduction; 2 Zirconia Potentiometric Oxygen Gas Sensing Technology; 3 Tunable Diode Laser Spectroscopy (TDLS); 4 Paramagnetic Oxygen Gas Sensing Technology; 5 Amperometric Oxygen Gas Sensing Technology with Liquid Electrole (Clark Cell); Acknowledgment; References; 6 Application of Practical Nitrate Sensor Based on Electrochemical Impedance Spectroscopy; Abstract; 1 Introduction; 2 Motivation; 2.1 Present Status of Water Quality Study; 2.2 Current Laboratory Measurement System.

This book offers an up-to-date overview of the concepts, modeling, technical and technological details and practical applications of different types of sensors, and discusses the trends of next generation of sensors and systems for environmental and food engineering. This book is aimed at researchers, graduate students, academics and industry professionals working in the field of environmental and food engineering, environmental monitoring, precision agriculture and food quality control.