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选用半导体致冷技术(选用17-03致冷堆)作为冷、热源,用电池供电,铝合金散热,紫铜作为导热、导冷触头,热敏电阻作为感温探头,数字显示紫铜触头的温度。经检测:致冷,30s内可降低3℃,最低可比室温低20℃,电池可持续使用60min;致热,30s内可升高4℃,最高可比室温高25℃。经广州市红十字会医院神经科临床使用,并与试管加水测试系统对比,结果证明该检测仪可满足检测人体表皮对温度差别感觉的检测要求,检测精度有进一步的提高。
Selection of semiconductor cooling technology (17-03 refrigerant used) as a cold, heat source, battery-powered, aluminum cooling, copper as a thermal conductivity, cold lead, thermistor as a temperature probe, digital display copper contacts temperature. After testing: cooling, 30s can be reduced by 3 ℃, the lowest 20 ℃ lower than room temperature, the battery can be used continuously for 60min; heat, 30s can be increased 4 ℃, the highest 25 ℃ higher than room temperature. The clinical application of neurology in Guangzhou Red Cross Hospital and comparison with test tube water testing system showed that the detector could meet the test requirements of detecting the sensation of human skin temperature difference and the detection accuracy was further improved.