Hua'an main produces clinical digital thermometer
Digital thermometer using imported high-precision, low drift , ultra-low power integrated circuits and wide temperature LCD display , built-in high-energy batteries ≥ 5 years of continuous work without laying power cables, is a high accuracy, good stability , applicability pole strong new site temperature indicator . Is the ideal spot pointer bimetal thermometers traditional alternative products, widely used in various industrial and mining enterprises , universities , research institutes .
Temperature number of our daily life and production in real time exposure to the physical , but it is invisible , feeling alone can only feel about the temperature, although the traditional pointer thermometer can indicate temperature , but low accuracy , easy enough to use , display and intuitive enough , the emergence of the digital thermometer allows people to intuitively understand they want to know is how many degrees the temperature in the end .
Digital thermometer using a temperature sensitive element is a temperature sensor ( such as a platinum resistance, thermocouple , a semiconductor , a thermistor , etc. ) , the transition temperature is changed to signal changes , such as changes in voltage and current , temperature and electrical signals changes in a certain relationship , such as a linear relationship , the relationship between a certain curve , the electric signal may be used i.e., analog to digital conversion circuit AD conversion circuit converts the analog signal to a digital signal , the digital signal is then sent to a processing unit , such as a PC or a microcontroller etc. , the processing unit through the internal software of this digital signal and the calculated temperature of the link , it becomes possible to display the temperature value , such as 25.0 ° C , and then through the display unit , such as LED, LCD or other display screen, the computer gives out observation. This completes the basic digital thermometer temperature measurement function .
Depending on the digital thermometer used by different sensors , AD converter circuit , and a processing unit , its accuracy, stability , temperature range , etc. have differences , it is necessary to choose a digital thermometer to meet the specifications of the actual situation .