Resistive temperature sensors



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Chapter 6 

Sensor mecanism 
o
Resistive sensor 

Resistive temperature sensors 

Resistive strain gauges 

Photoconductors 

Conductive relative humidity sensors 

Direct resistance change used to sense position or angle 

Sensors based on the giant magnetoresistve effect 

Antisotropic Magnetoresistance 
o
Voltage generating sensor 

Themocouples and Thermopiles 

Photovoltaic Cells 

Piezoelectric Transducers 

Pyroelectric sensors 
o
Sensors whose voltage output is porportional to dflux/dt 

Variable reluctance phonograph pickupp 

Electrodynamic Accelerometer 

Linear Velocity Sensors 
o
Sensors whose output EMF depends on the interaction 

Faraday Effect Flowmeters 

Hall effect sensors 
o
Sensor based on variable magnetic coupling 

LVDT 

Synchros and Resolvers 
o
Variable capasitance sensor 

Fiber optic sensors 
o
Magneto optic current sensors 
o
Means of Measuring the optical rotation of the linearly polarized light output of 
certain optical sensors 
o
Fiber optic mechanosensors 

Photomultiplier tubes and realted photoelectron multiplication devices 
o
Operation PMTS 
o
Single channel photomultiplier 
o
Microchannel plater photomultiplier 

Ionizing radiation sensors 
o
Geiger-Muller Tubes 
o
Solis-state, crystal radiation sensors 
o
Scintillation counters 

Eectrochemical sensors 
o
PH and ion specific electrodes 
o
Polarographic electrodes 
o
Fuel cell electrodes 



Mechano optical sensors 
o
Optical Coding Disks 
o
Sagnac Effect Sensing of Angular Velocitiy 
o
Laser Doppler Velocimetry 
Chapter 10 

Digital Filters and the z-transform 

Some dimple DSP algorithms 

Discrete and fast fourier transform and their apllications 
o
Use of Data windows to improve spectral Resolution 
o
Use of the DFT to characterize random signals and noise 
o
Fast Fourier Transform 

Digital routines for interpolating Discrete Data 
o
Estimating Missing Data at the Sampling Instants 
Chapter 3 

Parameters for performance specification 
o
Perfect measurement device 

Time domain Specifications 
o
Rise time 
o
Delay time 
o
Peak time 
o
Setlling time 
o
Percentage overshoot 
o
Steady state error 
o
Simple oscillator model 
o
Stability and speed of response 

Frequency Domain Specifications 
o
Gain Margin and phase margin 
o
Simple oscillator model 

Linearity 
o
Saturation 
o
Dead zone 
o
Hysteresis 
o
The jump phenomenon 
o
Limit cycles 
o
Frequency creation 

Instrument Ratins 
o
Rating parameters 

Bandwidth Design 
o
Bandwidth 

Transsmision level of a band pass filter 

Effective noise bandwidth 



Hall power or 3ds bandwidth 

Useful frequency range 

Instrument bandwidth 

Control bandwidth 
o
Static Gain 

Aliasing Distortion due to Signal Sampling 
o
Sampling theorem 
o
Antiliasing filter 
o
Another illustration of aliasing 

Bandwidth Design of a Control System 
o
Comment about control cycle time 

Instrument Error Analysis 
o
Statistical Representations 
o
Accuracy and Precision 
o
Error Combination 

Absolute Error 

SRRS Error 

Statistical Process Control 
o
Control limits or Action Lines 
o
Steps of SPC 



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