Temperature sensor, application thereof and method for preparing temperature sensing module
A technology of temperature sensor and sensing module, which is applied to the parts of thermometers, thermometers, and thermometers with electric/magnetic elements that are directly sensitive to heat, etc., which can solve the problems of lack of flexible and compact follow-up processing circuits, inaccurate temperature sensor measurement, etc. , to achieve the effect of reducing the probability of accidental occurrence of data measurement
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Embodiment 1
[0041] A temperature sensor such as figure 1 As shown, it includes a temperature sensing module with a stacked structure 2, the temperature sensing module is connected to the flexible circuit board 1, the temperature sensing module transmits data to the flexible circuit board 1, and the flexible circuit board 1 processes the transmitted temperature data;
[0042] The laminated structure 2 includes two temperature-sensitive layers, and a plurality of electrodes 4 are arranged between the two temperature-sensitive layers, and the plurality of electrodes 4 are connected to the flexible circuit board 1 through wires 3, and the flexible circuit board 1 is used to process the electrodes. 4 data, the temperature-sensitive layer is a temperature-sensitive layer made of polyvinylidene fluoride, polyethylene oxide and conductive filler through spin-coating, the molecular weight of polyethylene oxide molecules is adjusted to the sensitive temperature range of the temperature-sensitive lay...
Embodiment 2
[0056] Embodiment 2, on the basis of Embodiment 1, the size of the flexible circuit board 1 is designed to be 20mm*30mm, and the Bluetooth module and the battery are welded on the flexible circuit board 1 . The size of the bluetooth module is 11.2mm*15.2mm. The bluetooth module integrates a microprocessor, digital-to-analog conversion, and bluetooth. The bluetooth uses the latest bluetooth 4.0 technology. The average current of data sent once is 0.6mA, and the duration is 3.2ms. The size of the battery is 3mm*9mm*13mm, the capacity is 40mA, and it can support Bluetooth to send data 70 million times. The copper wires from the temperature sensing module are welded to the flexible circuit board 1, the flexible circuit part and the temperature sensing module are glued together, and finally pasted on the armpit of the human body with medical tape to realize the characteristics of unattended and real-time detection.
Embodiment 3
[0057] Embodiment 3, on the basis of embodiment 1 or 2, such as image 3 , 4 , 5,
[0058] image 3 (a) is the temperature hysteresis curve of the temperature sensor, that is, the temperature characteristic curve of temperature rise is inconsistent with the temperature curve of temperature cooling, which leads to a problem of incorrect measurement.
[0059] Figure 4 (a) It describes the change of temperature characteristic curve in a narrow range. The H section curve describes the process of a person with a normal body temperature from point a to point b due to a fever. This process has a large resistance value change, so It is easy to detect this change. The J-segment curve describes the process of a person with a fever going from the fever point b to a high fever, and then returning to the normal body temperature point c after the fever subsides. The k-section curve describes the process of a person with a fever going from a normal body temperature c to a temperature p...
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Abstract
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