Electronic thermometer

Abstract

The utility model relates to an electronic thermometer, comprising a temperature inducing component used for getting temperature signal and a temperature computing device which processes temperature signal. The temperature computing device transfers the temperature signal which the temperature inducing component gets into temperature value through combining the first sampling frequency and the second sampling frequency; wherein, the first sampling frequency is higher than the second sampling frequency. The core idea of the invention starts from the physiological consideration and makes more accurate and reliable and stable temperature measuring using fluctuation law of heat compensation caused by beating heart as a sampling frequency. Because the temperature computing device grasps real temperature rise-starting point and temperature value through a higher first sampling frequency before the similar or estimated second sampling frequency to heart beating frequency is combined to transfer the temperature signal which the temperature inducing component gets into a temperature value, temperature measurement is more stable; furthermore, a temperature predicting value can be made by using specific formula or counting method as predicting result of predicting body temperature measuring, so as to lower the measuring time.

Description

technical field [0001] The invention relates to a temperature measuring device and a temperature value analysis method, in particular to an electronic thermometer. Background technique [0002] At present, in the measurement of body temperature, there are various thermometers, but the most important ones are mercury thermometers and electronic digital thermometers. [0003] Mercury thermometers measure body temperature by using the principle of thermal expansion and contraction to measure body temperature. This type of thermometer is packaged in a glass tube, and the temperature measurement liquid uses mercury. Because the glass tube body is fragile and contains mercury, its safety is relatively poor. Electronic digital thermometers can be generally divided into two categories: one is an infrared thermometer based on an infrared measurement method, and the other is an electronic thermometer based on a heat conduction method. The infrared thermometer can measure the body tem...

AI Technical Summary

Problems solved by technology

The temperature sampling frequency of electronic thermometers using conventional technology is once a second, and the definition of achieving thermal equilibrium is that during the temperature measurement process, the sum of the temperature value changes within 4 or 8 consecutive seconds is less than or equal to 0.1°C; Sampling once a second is not synchronized with the thermal compensation frequency transmitted via the heartbeat frequency, resulting in different phases of the obtained temperature values, which may be the high point of the band or the low point, especially when approaching the thermal equilibrium point, obtained at different phases The temperature value has the greatest influence on judging whether the thermal equilibrium has been reached, and the signal of the end of the measurement is often sent early due to the temperature values ​​of different phases being mistakenly taken, so that the measured value is low when compared with the mercury thermometer in medical clinical trials.

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