OTHER
TYPES OF TEMPERATURE SENSOR
APPLICABLE TEMPERATURE RANGE
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(1) PLATINUM RTD Exploiting the theory that electric resistance value of a platinum wire or pattern is changed by a temperature change. This method features high accuracy. This is used for precise industrial temperature control. ⇒OUR PRODUCT |
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(2) THERMOCOUPLE This is widely used for industrial temperature control especially in high temperature. ⇒OUR PRODUCT |
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(3) GLASS THERMOMETER (MERCURY, ALCOHOL) Applying thermal expansion of mercury or alcohol. |
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(4) BI-METAL THERMOMETER Applying the theory that when two different metals are attached and heated, it warps because of the different thermal expansion coefficients. |
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(5) PRESSURE THERMOMETER Applying thermal expansion of liquid or gas. |
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(6) THERMISTOR This is a kind of RTD. As temperature goes up, the resistance valueof an element decrease. (-50 to 350℃) It is mainly applied for Home Electronics, cars, and OA machines. It is cheap but not as accurate as platinum RTD. |
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(7) INFRARED THERMOMETER Measuring infrared radiations emanating from substances and convert it into temperature. (7) is non-contact-type thermometer |
| (3)∼(6) Those are rarely used for industrial temperature control. (1)∼(6) are contact-type thermometers. Our company deals with (1), (2). |
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