Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Aachen
Shaker
2011
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| Schriftenreihe: | Messtechnik und Sensorik
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XI, 161 S. Ill., graph. Darst. 21 cm, 275 g |
| ISBN: | 9783832299064 |
Internformat
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| 245 | 1 | 0 | |a Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants |c Thomas Jacobs |
| 264 | 1 | |a Aachen |b Shaker |c 2011 | |
| 300 | |a XI, 161 S. |b Ill., graph. Darst. |c 21 cm, 275 g | ||
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| 490 | 0 | |a Messtechnik und Sensorik | |
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Datensatz im Suchindex
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| adam_text | IMAGE 1
TABLE OF CONTENTS
TABLE OF CONTENTS
ABBREVIATIONS V
SYMBOLS VII
1 INTRODUCTION 1
1.1 BACKGROUND AND MOTIVATION 1
1.2 OBJECTIVES AND APPROACH 3
1.3 OUTLINE 4
2 FUNDAMENTALS AND THEORY 7
2.1 HEAT TRANSFER, FLUID FLOW IN MICRO-FLUIDIC CHANNELS 7
2.1.1 THERMAL CONDUCTIVITY AND HEAT CAPACITY 7
2.1.2 FLUID MECHANICS 10
2.1.3 HEAT TRANSFER AND TRANSPORT MECHANISMS 12
2.1.4 BOILING AND DEGASSING 15
2.1.5 AXIAL DISPERSION AND RESIDENCE TIME DISTRIBUTION 16
2.1.6 MIXING AND MULTI-PHASE FLOW 17
2.2 DIELECTRICS AND ELECTROLYTES IN ELECTRIC FIELDS 18
2.2.1 POLARIZATION, COMPLEX PERMITTIVITY AND CAPACITANCE 18
2.2.2 IONIC CONDUCTIVITY, ELECTROCHEMICAL DOUBLE LAYER AND CONDUCTANCE
22
2.3 MINIATURIZED IMPEDIMETRIC SENSORS 26
2.3.1 PRINCIPLES AND DEVICES 26
2.3.2 ELECTRIC IMPEDANCE ANALYSIS AND ELECTRONICS 28
2.3.3 EQUIVALENT CIRCUIT MODELING AND CALIBRATION 30
2.4 MINIATURIZED THERMAL FLOW SENSORS 32
2.4.1 CONVENTIONAL THERMOELECTRIC FLOW SENSORS 32
2.4.2 CAPILLARY-TYPE THERMAL FLOW SENSORS 35
2.5 JOHNSON-NYQUIST NOISE 37
3 SENSOR SYSTEM DEVELOPMENT AND MODELING 39
3.1 PERFORATED THERMOELECTRIC FLOW SENSOR 39
3.1.1 SENSOR PRINCIPLE AND DESIGN 39
3.1.2 PROCESSING AND FABRICATED DEVICES 41
3.1.3 MODELING AND SIMULATION 42
3.1.4 INTERMEDIATE RESULTS 49
I
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1012734331
DIGITALISIERT DURCH
IMAGE 2
TABLE OF CONTENTS
3.2 CAPILLARY-TYPE THERMAL FLOW SENSOR 50
3.2.1 SENSOR PRINCIPLE AND DESIGN 50
3.2.2 MODELING AND SIMULATION 51
3.2.3 INTERMEDIATE RESULTS 58
3.3 SILICON AND CERAMICS BASED IMPEDIMETRIC SENSORS 59
3.3.1 SENSOR PRINCIPLE AND DESIGN 59
3.3.2 PROCESSING AND FABRICATED DEVICES 61
3.3.3 MODELING AND SIMULATION 65
3.3.4 INTERMEDIATE RESULTS 77
3.4 MICRO-REACTOR WITH MULTI-PARAMETER MICRO-SENSOR NETWORK 79
3.4.1 CONCEPTS, STRUCTURES AND SPECIFICATIONS 79
3.4.2 MICRO-REACTOR: DESIGN, PROCESSING AND FABRICATED DEVICES 81
3.4.3 MEASUREMENT CHAMBER: DESIGN, PROCESSING AND FABRICATED DEVICES 85
3.4.4 INTERMEDIATE RESULTS 86
3.5 MICRO-REACTOR BASED ON CAPILLARY-TYPE THERMAL FLOW SENSORS 87
3.5.1 CONCEPTS, STRUCTURES AND SPECIFICATIONS 87
3.5.2 DESIGN, PROCESSING AND FABRICATED DEVICES 88
3.5.3 INTERMEDIATE RESULTS 90
3.6 SENSOR ELECTRONICS 91
3.6.1 DC VOLTAGE MEASUREMENT 91
3.6.2 ELECTRIC IMPEDANCE SPECTRUM ANALYSIS 92
3.6.3 INTERMEDIATE RESULTS 93
4 MICRO-PLANT, PROCESS CONTROL AND CHEMICAL MODEL SYSTEM 95
4.1 CONCEPTS, STRUCTURES AND SPECIFICATIONS 95
4.2 ESTER SYNTHESIS 96
4.3 INTERMEDIATE RESULTS 97
5 SENSOR CHARACTERIZATION AND SIGNAL ANALYSIS 99
5.1 THERMOELECTRIC FLOW SENSOR 99
5.1.1 PRESSURE STABILITY 99
5.1.2 MEASUREMENT SENSITIVITY 100
5.1.3 SHORT-TERM FLOW PULSATION 104
5.1.4 HEAT DISSIPATION AND BOILING 106
5.1.5 INTERMEDIATE RESULTS 108
IMAGE 3
TABLE OF CONTENTS
5.2 IMPEDIMETRIC SENSOR 109
5.2.1 IMPACT OF MEDIUM FLOW 109
5.2.2 MEASUREMENT SENSITIVITY 110
5.2.3 INTERMEDIATE RESULTS 113
5.3 CAPILLARY-TYPE THERMAL FLOW SENSOR 114
5.3.1 SINGLE VS. DUAL HEATER MODE 114
5.3.2 MEASUREMENT SENSITIVITY 115
5.3.3 INTERMEDIATE RESULTS 116
6 SENSOR SYSTEM AND INLINE CHEMICAL PROCESS ANALYSIS 117
6.1 PRELIMINARY 117
6.2 THERMOELECTRIC FLOW AND IMPEDIMETRIC SENSOR 117
6.2.1 THERMAL CROSS-TALK 117
6.2.2 PROPAGATION OF FLOW AND PRESSURE ALTERATIONS 118
6.2.3 SHORT-TERM FLOW PULSATION 120
6.2.4 CHEMICAL CONVERSION 122
6.2.5 MULTI-PHASE FLOW 124
6.2.6 MIXING AND DISPERSION 128
6.2.7 INTERMEDIATE RESULTS 131
6.3 CAPILLARY-TYPE THERMAL FLOW SENSOR 133
6.3.1 OFFSET COMPENSATION 133
6.3.2 PROPAGATION AND COMPENSATION OF FLOW PULSATION 134
6.3.3 CHEMICAL CONVERSION AND MULTI-PHASE FLOW 136
6.3.4 MIXING AND DISPERSION 137
6.3.5 INTERMEDIATE RESULTS 138
7 SUMMARY, CONCLUSION AND OUTLOOK 139
REFERENCES 145
APPENDIX 155
|
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| dewey-tens | 680 - Manufacture of products for specific uses |
| discipline | Handwerk und Gewerbe / Verschiedene Technologien Mess-/Steuerungs-/Regelungs-/Automatisierungstechnik / Mechatronik |
| format | Thesis Book |
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| id | DE-604.BV039719636 |
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| isbn | 9783832299064 |
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| physical | XI, 161 S. Ill., graph. Darst. 21 cm, 275 g |
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| spelling | Jacobs, Thomas 1979- Verfasser (DE-588)101325709X aut Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants Thomas Jacobs Aachen Shaker 2011 XI, 161 S. Ill., graph. Darst. 21 cm, 275 g txt rdacontent n rdamedia nc rdacarrier Messtechnik und Sensorik Zugl.: Magdeburg, Univ., Diss., 2011 Kapillarströmung (DE-588)4336135-3 gnd rswk-swf Chemischer Sensor (DE-588)4259288-4 gnd rswk-swf Strömungssensor (DE-588)4183716-2 gnd rswk-swf Mikrofluidik (DE-588)4803438-1 gnd rswk-swf Mikroreaktor (DE-588)4786310-9 gnd rswk-swf Chip (DE-588)4197163-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Mikroreaktor (DE-588)4786310-9 s Chemischer Sensor (DE-588)4259288-4 s Mikrofluidik (DE-588)4803438-1 s Kapillarströmung (DE-588)4336135-3 s Strömungssensor (DE-588)4183716-2 s Chip (DE-588)4197163-2 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024567755&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Jacobs, Thomas 1979- Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants Kapillarströmung (DE-588)4336135-3 gnd Chemischer Sensor (DE-588)4259288-4 gnd Strömungssensor (DE-588)4183716-2 gnd Mikrofluidik (DE-588)4803438-1 gnd Mikroreaktor (DE-588)4786310-9 gnd Chip (DE-588)4197163-2 gnd |
| subject_GND | (DE-588)4336135-3 (DE-588)4259288-4 (DE-588)4183716-2 (DE-588)4803438-1 (DE-588)4786310-9 (DE-588)4197163-2 (DE-588)4113937-9 |
| title | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants |
| title_auth | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants |
| title_exact_search | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants |
| title_full | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants Thomas Jacobs |
| title_fullStr | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants Thomas Jacobs |
| title_full_unstemmed | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants Thomas Jacobs |
| title_short | Miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro-plants |
| title_sort | miniaturized thermal flow and impedimetric sensors for the inline chemical process analysis in micro plants |
| topic | Kapillarströmung (DE-588)4336135-3 gnd Chemischer Sensor (DE-588)4259288-4 gnd Strömungssensor (DE-588)4183716-2 gnd Mikrofluidik (DE-588)4803438-1 gnd Mikroreaktor (DE-588)4786310-9 gnd Chip (DE-588)4197163-2 gnd |
| topic_facet | Kapillarströmung Chemischer Sensor Strömungssensor Mikrofluidik Mikroreaktor Chip Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024567755&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT jacobsthomas miniaturizedthermalflowandimpedimetricsensorsfortheinlinechemicalprocessanalysisinmicroplants |