Straight type Thermometer
A straight-type thermometer is the classic, most recognizable form of a thermometer. It consists of a long, slender, straight probe that houses the temperature sensor, connected to a display unit (either analog dial or digital). The probe is designed to be inserted directly into a substance to measure its internal temperature.
They are the workhorse of temperature measurement in kitchens, laboratories, and industry due to their simplicity, durability, and direct application.
Overview
Specifications
. Temperature Range: Can vary widely, from as low as -200°C to as high as 800°C, depending on the application and design.
. Accuracy: Generally within ±1% of the reading for industrial applications.
. Stem Length: Can vary, but common lengths are 4", 6", 9", and 12".
. Stem Diameter: Common diameters include 6mm, 8mm, and 10mm.
Types
Liquid-in-Glass Thermometer: Uses a liquid (like mercury or alcohol) that expands and contracts with temperature changes.
Bimetal Thermometer: Uses two different metals bonded together that expand at different rates, causing the strip to bend and move the needle.
Electronic Thermometer: Uses electronic sensors to measure temperature, often with digital displays.
