eFunda: Measurement and Sensors

Instruments and Principles for Measurement

Instruments & Devices: Data Acquisition, Computer Boards, Signal Conditioning, Transducers, Instruments, Recording Devices

Methods & Principles: Digital Signal Processing (Aliasing, Nyquist), Data Processing, Time Domain Analysis, Fourier Transform, Bridge Circuits, Piezo Effects

Sensors

Displacement & Dimension: LVDT, RVDT, Fotonic (Fiber-Optic), Eddy Current, Ultrasonic, Microscope, Surface Roughness

Velocity: Laser Doppler, Tachometers, Gyroscopes

Stress & Strain: Strain Gages, Photo-elasticity, Moiré, Holographs

Pressure: U Tubes, Bourdon Tubes, Diaphragm Gages, McLeod Gages

Fluid Flow: Pitot Tubes, Hot-wires, Laser Doppler, Pressure Probes

Flowmeter: Selection Guide, Coriolis, Differential Pressure, Magnetic, Positive Displacement, Target, Thermal, Turbine, Ultrasonic (Transit Time/Doppler), Variable Area, Vortex

Temperature: Thermocouples, Resistance (RTD), Thermistors, Pyrometers

more to come ...

Information, coverage of important developments and expert commentary in manufacturing.

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Guide for high quality and cost-effective plastic injection molding.

Learn the best principles to negotiate the salary you deserve!