Disposable temperature probe can monitor temperature change and transformed into a device for signal. Typically consists of a NTC thermistor temperature sensor and two lines of solid-state electronic components.
It uses solid in the form of module put the temperature chip directly arranged in the junction box, thus formed to be a disposable body temperature probe. Disposable temperature probe convert temperature signal for the second tier of electrical signal to monitor in a very simple way of 25 DEG C ~50 DEG C to achieve accurate measurement and control of temperature.
Disposable temperature probe can usually be divided into two types:
Skin surface temperature probe and the body cavity(rectal/esophageal/Foley catheter) temperature probe.Disposable temperature probe is the base unit the R / V conversion unit, linear circuit and reverse connection protection, current limiting protection, V / I conversion unit.
NTC thermistor temperature measurement chip signal conversion and amplification then by the linear circuit to compensate the temperature and resistance of the nonlinear relationship, after the output of the V/I conversion circuit and the measured temperature into a linear relationship between the constant current signal.
Disposable temperature probe has the advantages of simple structure, saving lead wire, signal output, strong anti-interference ability, good linearity, display apparatus simply and solid module seismic moistureproof, reverse connection protection and current protection, reliable operation, etc. Disposable Medical Temperature Probe is an important application field of NTC thermistor chip.