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Temperature touch sensing device

A technology of tactile sensing and temperature sensor, which is applied to thermometers, measuring devices, and electric devices, etc., can solve the problems of uncertain human body temperature and interference effects of external temperature, etc., achieve simple structure, reduce negative impact, The effect of high recognition accuracy

Inactive Publication Date: 2010-02-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking material recognition as an example, material recognition can rely on infrared detection, ultrasonic detection, infrared detection and ultrasonic detection. Although the accuracy is high, the uncertainty is easily affected by the interference of human body temperature and external temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The measured object is a solid with a low test temperature. Increase the temperature of the heater to make it higher than the temperature of the measured object, reduce the contact resistance through heat transfer oil, and place the sensing device flat on the surface of the measured object. At this time, the sensor part transfers heat to the measured object, the temperature of the sensor decreases, and the temperature of the heater decreases. The sensing device reaches a stable state, forming a constant temperature field, the temperature of the heater does not change, the temperature of the sensing device does not change, and the test ends. The collected data is analyzed to obtain thermal characteristics such as thermal conductivity and thermal diffusivity.

[0045] The heat conduction of this embodiment, test mechanism:

[0046] Two important parameters that affect the heat transfer rate of an object are thermal conductivity K and thermal diffusivity α.

[0047] K ca...

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Abstract

The invention discloses a temperature touch sensing device, comprising a first insulating plate, a second insulating plate and a temperature sensor arranged between the first insulating plate and thesecond insulating plate, a heater and an insulating base plate, and the insulating base plate is arranged between the temperature sensor and the heater. The temperature sensor comprises an embedded temperature sensing metal coil which adopts a semi-circle spiral encircling way with decreasing radius gradually or an isosceles right triangle spiral encircling way with decreasing side length gradually; the heater comprises an embedded metal heating wire which adopts a semi-circle spirally encircling way with decreasing radius gradually or an isosceles right triangle spirally encircling way with decreasing side length gradually; the temperature touch sensing device accurately distinguishes the characteristics of a measured object by measuring the temperature response of the measured object with a touch way, and is economic and practical, and the temperature touch sensing device has the characteristics of high measuring precise, reliable performance, quick detecting speed and wide application and the like.

Description

technical field [0001] The invention relates to a temperature tactile sensing device, which can be applied to test the thermal characteristics of a contact object, and relates to the fields of tactile sensors and temperature sensors. The temperature sensing device can distinguish the thermal characteristics of objects, and is suitable for robotic fingers, space detection, medical treatment and other fields. Background technique [0002] Tactile sense is a necessary medium for robots to interact directly with the environment, and it is an important form of perception second only to vision for robots to obtain environmental information. Different from vision, the sense of touch itself has a strong sensitivity and can directly measure various properties of objects and environments. Some functions that cannot be realized by vision can be realized, so the sense of touch is not just a supplement to vision. Compared with the wide application of robot visual sensing technology, th...

Claims

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Application Information

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IPC IPC(8): G01N25/18G01N25/20G01K7/16
Inventor 吴剑锋李建清周连杰陈从颜王丰华吴剑进
Owner SOUTHEAST UNIV
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