Temperature tactile representation device with variable heat capacity

A tactile reproduction and variable technology, applied in the direction of temperature control, electric temperature control, non-electric variable control, etc., to achieve high-precision non-contact temperature measurement, expand types, increase the rate of heating and cooling
CN101799694AInactive Publication Date: 2010-08-11SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a temperature tactile representation device with variable heat capacity, which is provided with a semiconductor cooler, a radiator, two temperature sensors and a measurement and control circuit, wherein the semiconductor cooler is used as a core of temperature control and hand perception, and consists of a P-N structure which is energized with direct current and is provided a cold end surface and a hot end surface; the radiator comprises a switch chamber with a cavity and a cooling liquid-gas two-path switching system, the cooling liquid switching system feeds cooling liquid to the cavity of the switch chamber by a cooling liquid groove via pipelines, and the switch chamber is communicated with the cooling liquid groove via a cooling liquid outlet pipeline; the gas path switching system switches air by an air inlet pipeline and an air outlet pipeline which are communicated with the cavity of the switch chamber; the pipelines of the cooling liquid-gas two-path switching system are respectively provided with an electromagnetic valve and a pump which are in connection with output control signal of the measurement and control circuit; the measurement and control circuit has a well-known power supply circuit, an analog-to-digital conversion circuit, a signal conditioning circuit and a control chip; and the two temperature sensors are respectively used for collecting temperatures of hand and the semiconductor cooler and outputs the temperatures to the measurement and control circuit.
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Description

technical field

[0001] The invention relates to tactile reproduction in virtual reality technology, in particular to a temperature tactile reproduction device with variable heat capacity, which can realize near-end reproduction of remote temperature tactile sensation, and belongs to the technical field of testing. Background technique

[0002] With the rapid development of electronic information technology, virtual reality technology, as the frontier and hotspot of current information technology research, has become one of the most encouraging information application technologies in the 21st century. "Multiple perception, interactivity and presence" is the goal pursued by an ideal virtual reality system. The importance of technology has been widely recognized and deeply researched. The continuously optimized and improved force tactile algorithm and flexible and textured tactile reproduction device have been able to better simulate the flexibility and textured force and tacti...

Claims

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