1. MEASURING TEMPERATURE
1.1. NON-ELECTRICAL
1.1.1. Bi-metallic Thermometer
1.1.1.1. Dial Thermometer Control Devices
1.1.1.2. Low Cost Negligible Maintenance Expense Stable Operation
1.1.1.3. Range of -30 to 550°C Accuracy of ±0.5 to ±1.0%
1.1.2. Liquid in Glass Thermometer
1.1.2.1. Mercury Alcohol
1.1.2.2. Accuracy of 0.05°C
1.1.2.3. Low Cost Simple Portable
1.1.2.4. Fragile Lack of Adaptability
1.1.3. Pressure Thermometer
1.1.3.1. Most Economical Versatile Widely Used
1.1.3.2. Low Cost No Maintenance Expenses Stable Accuracy Level is ±1°C
1.2. ELECTRICAL
1.2.1. Electrical-Resistance Thermometer
1.2.1.1. RTD
1.2.1.1.1. Formed From a Solid Metal Wire
1.2.1.1.2. Platinum
1.2.1.2. Thermistor
1.2.1.2.1. Ceramic-like Semiconductor Devices
1.2.1.2.2. Suitable Temperature Below About 300°C
1.2.1.2.3. Advantages
1.2.1.3. Thermocouple
1.2.1.3.1. Junctions
1.2.1.3.2. Phenomenons & EMF
1.2.2. Quartz-crystal Thermometer
1.2.3. Liquid-crystal Thermography
1.3. RADIATION
1.3.1. Measure the Temperature of a Body Through a Measurement of the Thermal Radiation Emitted by the Body
1.3.2. Wavelength -0.1 to 100µm
1.3.3. Types of thermometer
1.3.3.1. Total radiation pyrometer
1.3.3.2. Selective or partial radiation pyrometer
1.3.3.3. Infrared pyrometer
2. SCALES
2.1. CELCIUS
2.1.1. Freezing point at 0°C
2.1.2. Boiling point at 100°C
2.2. FAHRENHEIT
2.2.1. Freezing point at 32F
2.2.2. Body Temperature at 98F