Calibration of Pressure, Temperature and Flow Measuring Instruments Course

The course commences with a brief review of some basic terminology, systems of units, measurement standards, traceability and types of error. The course then covers calibration standards and documents affecting the calibration of electrical items. A brief review is made of measurement uncertainty.

The course then covers calibration equipment and techniques in detail, starting with a discussion of electrical instrument calibration with precision instruments such as VOM devices, oscillators, counters, function generators, power supplies, RF power instrumentation, temperature simulation and measuring equipment, and fibre optic instruments.

Electrical working standards are discussed, such as meter calibrators, oscilloscope calibrators, multi-function calibrators, distortion analysers, counters, LF Spectrum Analysers, RCL Meters and substitution boxes, and more.

Attention will focus more on generic processes and theory of individual measurements than on how to calibrate a specific instrument. We will explore the background and theory of precision measurements in voltage, current, resistance, capacitance, inductance, frequency, and LF/RF power. Further discussion of measurement and theory in noise, total harmonic distortion, phase angle, modulation, and rise time will be pursued in detail.

The instructor presents the course aided by overhead Power Point slides. Students are expected to participate in classroom discussion and exercises.

Objectives

Training Methodology

The training methodology is interactive with group exercises and is suitable for all employees involved in functions management. The pace and level of the training workshop is customized to the understanding of the delegates. Ongoing back-up and support is available after the training on request to the supplier, and the training course is also available for in-house presentation as well as for “Competency Transfer

Who Should Attend?

This course is intended for personnel involved in metrology, instrumentation and various testing activities.

Course Outline

Introduction and Focus

• Metrology Terminology
• Scope of Metrology
• Measurement Processes
• Units
• Measurement error
• Classification of Error
• Error vs. Accuracy

Measurement Standards and Traceability

• Measurement Standards
• Traceability
• Definition of the Second
• Coordinated Universal Time (UTC)
• Definition of the Ampere
• Voltage Reference
• Josephson junction
• Standard Resistor

Technical Requirements in Calibration Standards

• US Government Agencies
• Calibration Program-Operations
• Historical requirements
• MIL-STD 45662A
• ANSI Z540-1-1994
• Compliance Documents
• NIST
• Calibration Procedure Template
• Handling, Records, Certificates & Reports
• Accreditation
• Technical and Calibration requirements in ISO 9000

Types of Standards

• Oscilloscope Calibrators
• Multifunction Calibrators
• Distortion Analysers
• Counters
• LF Spectrum Analysers and FFTs
• RCL Devices

Measurement Uncertainty

• Purpose of a Measurement
• Accuracy Concept
• Error types
• Random
• Instrumentation
• Environmental
• Observational
• Reduction of Observer Bias (exercise)
• Estimating Measurement Uncertainty of a Calibration Process

Example: Estimating Electrical Uncertainty

• Calibration of a Hand-Held Digital Multi-meter at 100 V dc
• Resolution
• Uncertainty Budget
• Expanded Uncertainty

Electrical Calibration

• VOM Devices
• Digital Multi-Meters
• DMM Data Sheet
• Tolerances
• Terminology
• Two Wire and Four Wire Ohms
• Processes
• Synthesizers/Sweepers
• DBM and DBU Power
• Synthesized Sweep Oscillator Specifications
• Level Specs
• Output Level Flatness
• Frequency Specifications
• Harmonics
• Phase Noise Display
• Modulation
• Measuring Power
• Mismatch Calculation and Conversions
• Frequency Meter
• Harmonic Test with Spectrum Analyzer
• Phase Noise Test
• Counters
• Frequency Standards
• Counters-Functions
• Function and Pulse Generators
• Pulse Characteristics
• Power Supplies
• Grounding of Power Supply
• Temperature/ Humidity Simulation and Measurement
• Thermocouple
• SPRT
• RTD
• Data Logging Types
• Humidity Calibration
• Chilled Mirror Concept
• Spectrum and Network Analysers
• The Frequency Domain
• Calibration and Validation Kits
• Impedance Bridges
• Amplifiers
• Logic Analysers
• Angle Position Indicators
• RF Power Measurement
• RF Power Meter Use
• RF Power Meter and Sensor Calibration
• Fibber Optic Calibration
• Overview
• Optical Specifications
• Optical Devices
• Optical Power Meter
• Optical Sources
• Optical Spectrum Analysers
• Wave Meters
• OTDR and Back Reflection
• Optical Attenuator

Calibration of Vibration Measuring Instruments

• Transducers
• Strain Gages
• Accelerometers
• Comparison Method

Oscilloscopes

• Analog
• Digital
• High Bandwidth
• Specifications
• Calibration Procedures

Overview of ISO 17025

• Material Review Boards
• Corrective Action
• Preventive Action

Class Project

Summary, Final Review

Award of certificates for successful completion