Hangzhou Hua'an Medical & Health Instruments Co., Ltd.
Major products include Clinical Thermometer,Digital Thermometer,Ear Thermometer and Digital Blood Pressure Monitor etc.Our company is a China enterprise with strength.
Home >> Products >> Digital thermometer series
Product Series
  • Low voltage warning
  • Memory function
  • Fever warning
  • Safe & sanitary
  • Buzzing prompting
  • Automatically closing
  • Changeable battery
  • Low voltage warning
  • Memory function
  • Automatically closing without ...
  • Low voltage warning
  • Automatically pressuring, safe...
  • Timing display blood pressure/...
  • Unit Switch
  • Automatic power off
  • 10 memories
  • Beeper warning
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Add: Building 2, Baimiao Ind. Park, Wuchang Economic Develop Zone,

The thermometer principle and application

The principle of mercury thermometer is very simple - is because of heat and cold, as for mercury without water? Why don't, because the water in 4 degrees, heat bilges cold also, and mercury coefficient of expansion is larger, changes obviously also have filled alcohol is red that alcohol thermometer for measuring temperature (- 78 ~ + 110 degrees or so), mercury thermometer for lateral higher temperature (about 15 ~ 300 degrees). Another kerosene thermometer.
Pressure type thermometer principle -- according to law, namely certain liquid expanding quality liquid, in its volume, under the condition of liquid pressure and temperature is linear. Gas, steam pressure and temperature is a certain function relation, and therefore the pressure gauge ear thermometer should be uniform type quintiles. Pressure type thermometer is by filling inductive medium temperature of temperature bag, transmitting pressure components (capillary) and pressure sensitive components (spring tubes) composition.
Infrared measuring temperature meter principle -- any object can have infrared ray radiation, it represents the temperature of the objects. The higher the temperature radiation is bigger. With infrared receiver for sensors, the digital filter and amplification and then the calculation, showing the number. Infrared temperature-measuring plan by optical system, photoelectric detector, signal amplifier and signal processing. Display output components. Optical system gathering its field of view of the target ir radiation energy, infrared energy focus on the photodetector it converted to the corresponding signal, then through this signal conversion into target value being measured.
Author:Hangzhou following medical care Co., LTD
main product:digital thermometer,clinical thermometer,ear thermometer,digital blood pressure monitor
Forehead Thermometer
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