THERMOMETER CALIBRATION SERVICE
3D Vina Measurement Equipmetn Joint Stock Company provides you with calibration services for laboratory measuring instruments, especially thermometer calibration services.
1) What is a thermometer?
- A thermometer is a device used to measure temperature. A thermometer typically consists of two important components: the temperature-sensing element (such as a bulb containing mercury or alcohol) and the display for indicating the result.
- Types of Thermometers used in industries commonly employ electronic devices to display results such as computers.
- Electronic thermometers typically feature in wall-mounted clocks, in rapid medical measuring devices, etc., utilizing semiconductor sensors, converting analog signals to digital (ADC), and displaying digital readings.
2) Characteristics of laboratory thermometers:
- Liquid-filled thermometers: operate based on the heat conductivity of substances common substances used here include mercury, colored alcohol, ethyl alcohol, pentane, benzene, toluene, etc.
- Electric thermometers: thermoelectric measuring devices utilizing electrical properties or the temperature-dependent property such as the thermoelectric effect in a circuit with two or more metals, or the change in resistance of a metal with temperature.
- Resistance thermometers: temperature-measuring devices based on the variation of resistance of semiconductor materials, semimetals, or metals as temperature changes these metal properties offer high accuracy, stable readings, can self-record, and transmit results remotely. Platinum resistance thermometers measure temperatures from 263°C to 1064°C, nickel and iron up to 300°C copper 50°C – 180°C semiconductor materials for low-temperature measurements (0.1K – 100K). To measure low temperatures, condensation thermometers, gas thermometers, and thermocouples are applied.
- Semiconductor thermometers: utilize a semiconductor thermistor as a sensing element, converting analog signals to digital ADC and displaying digital readings. They are present in rapid medical measuring devices, wall-mounted electronic clocks, etc. In environmental temperature measurement of soil, water, air, semiconductor temperature sensors with suitable casings for rapid heat conduction are used. The working temperature range is determined by the electronic circuit, typically reaching a maximum of about 80-120°C.
- Infrared thermometers: rely on the infrared thermal radiation effect of hot objects.
Contact 3D Vina immediately via our Email or Hotline: (+84) 902145345 for advice!
