Comparison of Different temperature sensors

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#1

Thermocouple

Advantages - Passive
Inexpensive
Rugged
Temperature Range

Disadvantages - Low voltage as output
Required Cold junction compensation
Variable accuracy

RTD

Advantages - High accuracy
High stability

Disadvantages -
Expensive
Requires excitation
Low resistance as output
Self heating

Thermistors

Advantages- High resistance
High sensitivity

Disadvantages - Highly non linear output
Limited operating range
Requires excitation
Self heating

Fiber bragg grating

Advantages - Passive
Electrically non-conductive
Environmentally stable
Requires excitation
Self heating

Disadvantages-Expensive
Problems in installation
Not widely adopted