ASME PTC 19.22 07:2007 Edition
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ASME PTC 19.22 Data Acquisition Systems
Published By | Publication Date | Number of Pages |
ASME | 2007 | 54 |
PDF Catalog
PDF Pages | PDF Title |
---|---|
4 | CONTENTS |
6 | NOTICE |
7 | FOREWORD |
8 | ASME PTC COMMITTEE Performance Test Codes |
9 | CORRESPONDENCE WITH THE PTC 19.22 COMMITTEE |
10 | INTRODUCTION |
12 | DATA ACQUISITION SYSTEMS Section 1 Object and Scope 1-1 OBJECT 1-2 SCOPE |
13 | Section 2 Definitions and Descriptions of Terms |
15 | Section 3 Guiding Principles 3-1 CAPABILITY 3-2 TYPICAL DATA ACQUISITION SYSTEMS 3-2.1 Basic Data Acquisition System 3-2.2 Intermediate Data Acquisition System |
16 | 3-2.3 Advanced Data Acquisition System 3-3 SYSTEM PLANNING 3-3.1 Test Plan 3-3.2 Hardware |
18 | 3-3.3 Software |
19 | 3-4 OPERATIONAL CONSIDERATIONS 3-4.1 Calibration 3-4.2 System Validation |
20 | Section 4 Signal Conversion 4-1 SENSORS 4-1.1 Sensor Considerations 4-1.2 Sensor Signal Types 4-1.2.1 Analog Signals. 4-1.2.2 Digital Signals. 4-1.2.3 Pulse Inputs. 4-1.2.4 Contact Input Signals. 4-2 SIGNAL CONDITIONING 4-2.1 A/D Conversion |
21 | 4-2.1.1 Counter or Ramp Type. 4-2.1.2 Successive Approximation Type. 4-2.1.3 Dual Slope Integrating Type. 4-2.1.4 Voltage to Frequency Integrating Type. |
22 | 4-2.1.5 Parallel Type. 4-2.1.6 Sigma-Delta Type. 4-2.2 Signal Amplification 4-2.3 Current to Voltage 4-2.4 Voltage Divider 4-2.5 AC to DC Conversion |
23 | 4-2.6 Filtering 4-2.6.1 Passive Filters. 4-2.6.2 Active Filters. 4-2.7 Digital Signal Conditioning 4-3 SIGNAL MULTIPLEXING 4-3.1 Analog Signal Multiplexing 4-3.1.1 Switch Type Multiplexing. 4-3.1.2 Relay Type Multiplexing. |
24 | 4-3.1.3 Solid State Multiplexing. 4-3.2 Digital Signal Multiplexing |
25 | Section 5 Data Acquisition System Calibration 5-1 SYSTEM CALIBRATION 5-1.1 Reference Standards 5-1.2 Quality Assurance Program 5-1.3 Ambient Conditions 5-1.4 Calibration Points and Ranges |
26 | 5-1.5 Timing of Calibration 5-1.6 Drift 5-1.7 Calibration Corrections 5-1.8 Documentation and Traceability 5-2 CALIBRATION METHODS 5-2.1 Loop Calibration 5-2.2 Component Calibration 5-3 FIELD CALIBRATION 5-4 LABORATORY CALIBRATION |
27 | Section 6 System Uncertainty 6-1 SYSTEM UNCERTAINTY CONTRIBUTORS 6-1.1 Component Base Uncertainty 6-1.2 System Application Uncertainty 6-1.2.1 Environmental Effects. |
28 | 6-1.2.2 Drift Effects. 6-1.2.3 Measurement Resolution. 6-1.2.4 Measurement Methodology. 6-1.2.5 Transient Effects. |
29 | 6-1.3 Analytical Uncertainty 6-2 OVERALL SYSTEM UNCERTAINTY 6-2.1 Combination of Individual Component Uncertainties 6-2.2 Overall Measurement System Loop Uncertainty |
30 | Section 7 Data Management 7-1 DIGITAL DATA REPRESENTATION 7-1.1 Data Resolution 7-1.2 Computational Accuracy and Precision 7-2 DATA OUTPUT REQUIREMENTS |
31 | 7-3 MANUALLY PREPARED DATA 7-4 CALCULATIONS 7-4.1 Data Reduction 7-4.1.1 Scaling. 7-4.1.2 Unit Conversions. 7-4.1.3 Calibration Corrections. |
32 | 7-4.1.4 Other Corrections. 7-4.1.5 Averaging. |
35 | 7-4.1.6 Statistical. 7-4.1.7 Signal Conditioning: Software Filtering or Data Smoothing. 7-4.2 Results 7-4.2.1 Test Results. 7-4.2.2 Test Uncertainty. 7-4.3 Validation 7-5 DATA STORAGE GUIDELINES 7-5.1 Storage Capacity 7-5.2 Stored Attributes 7-5.3 Data Compression |
36 | 7-6 REPORTING |
38 | MANDATORY APPENDIX I BIBLIOGRAPHY |
39 | NONMANDATORY APPENDIX A DATA ACQUISITION SYSTEM COMPONENT ERRORS AND OVERALL SYSTEM UNCERTAINTY REPRESENTATION A-1 INTRODUCTION A-2 SYSTEM COMPONENT ERRORS A-2.1 Sensors A-2.2 Signal Conditioning A-2.3 Multiplexing A-2.4 A/D Conversion |
40 | A-2.5 Data Processing Errors A-3 SYSTEM APPLICATION ERRORS A-3.1 Zero Offset Errors A-3.2 Gain Errors A-3.3 Reference Voltage Errors A-3.4 Common Mode Errors A-3.5 System Noise Error A-4 OVERALL DATA ACQUISITION SYSTEM ERRORS |
41 | A-5 SUMMARY |
42 | NONMANDATORY APPENDIX B DATA ACQUISITION SYSTEM UNCERTAINTY CALCULATION EXAMPLES B-1 PURPOSE B-2 UNCERTAINTY OF FOUR-WIRE RESISTANCE MEASUREMENT B-2.1 System Configuration/Specifications B-2.2 Assumptions B-2.3 Analysis B-2.3.1 DAS Systematic Uncertainty Contributors. B-2.3.1.1 Base Systematic Uncertainty. |
43 | B-2.3.1.2 Environmental Effects. B-2.3.1.3 Drift. B-2.3.1.4 Measurement Resolution. B-2.3.1.5 Measurement Methodology. |
45 | B-2.3.1.6 Composite Systematic Uncertainty Due to DAS Effects. B-2.3.2 Sensor Systematic Uncertainty Contributors. B-2.3.2.1 Four-Wire RTD Sensor Base Systematic Uncertainty. B-2.3.2.2 Environmental Effects. B-2.3.2.3 Drift. B-2.3.2.4 Resolution. B-2.3.2.5 Measurement Methodology. |
46 | B-2.3.2.6 Composite Systematic Uncertainty Due to RTD Sensor Effects. B-2.3.3 Analytical Uncertainty. B-2.3.4 Total Systematic Uncertainty of Measurement Loop. B-2.3.4.1 Non-Loop Calibrated System. B-2.3.4.2 Loop Calibrated System. B-3 UNCERTAINTY OF DC VOLTAGE MEASUREMENT B-3.1 System Configuration/Specifications B-3.2 Assumptions |
47 | B-3.3 Analysis B-3.3.1 DAS Systematic Uncertainty Contributors. B-3.3.1.1 Base Systematic Uncertainty. B-3.3.1.2 Environmental Effects. B-3.3.1.3 Drift. B-3.3.1.4 Measurement Resolution. B-3.3.1.5 Measurement Methodology. |
48 | B-3.3.1.6 Composite Systematic Uncertainty Due to DAS Effects. B-3.3.2 Sensor Systematic Uncertainty Contributors. B-3.3.2.1 DC Voltage Base Systematic Uncertainty. B-3.3.2.2 Environmental Effects. |
49 | B-3.3.2.3 Drift. B-3.3.2.4 Resolution. B-3.3.2.5 Measurement Methodology. B-3.3.2.6 Composite Systematic Uncertainty Due to DC Voltage Sensor Effects. B-3.3.3 Analytical Uncertainty. B-3.3.4 Total Systematic Uncertainty of Measurement Loop. B-4 UNCERTAINTY OF DIGITAL SIGNAL INPUT B-4.1 System Configuration/Specifications B-4.2 Assumptions B-4.3 Analysis B-4.3.1 DAS Systematic Uncertainty Contributors. B-4.3.1.1 Measurement Methodology. |
50 | B-4.3.1.2 Composite Systematic Uncertainty Due to DAS Effects. B-4.3.2 Sensor Systematic Uncertainty Contributors. B-4.3.2.1 Digital Signal Base Uncertainty. B-4.3.2.2 Environmental Effects. B-4.3.2.3 Drift. B-4.3.2.4 Resolution. B-4.3.2.5 Measurement Methodology. B-4.3.2.6 Composite Systematic Uncertainty Due to Digital Sensor Effects. B-4.3.3 Analytical Uncertainty. B-4.3.4 Total Systematic Uncertainty of Measurement Loop. B-5 CONCLUSIONS B-5.1 Four-Wire RTD Measurements |
51 | B-5.2 DC Voltage Measurements B-5.3 Digital Inputs B-5.4 Summary |
52 | NONMANDATORY APPENDIX C FLOATING-POINT DATA REPRESENTATION IEEE 754-1985 |
53 | NONMANDATORY APPENDIX D SAMPLE DATA ACQUISITION SYSTEM OUTPUT EXAMPLE |