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Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for 'EST/-5.0/no DST' instead in /var/www/custom/archive.cmdm/config.php on line 61

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反应迅速的热敏电阻 - China Medical Device Manufacturer
CMDM

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Wed, January 17th, 2018

2005 冬季刊 » 技术新知
反应迅速的热敏电阻

这是一种可广泛应 用于仪器及医学领域的热敏电阻探针,反应时间仅为30毫秒 (在流液体中),它被用在包括导管、皮下注射针头及其他需测量微量液体及气体的仪器上。

BetaTherm Sensors (Schrewsbury,麻萨诸塞州,美国) 公司生产的这种快速反应微型玻璃探针,由密封的玻璃外壳热敏电阻融合(焊接)于绝缘的延长导线构成。融合(焊接)的节点位于含有环氧化合物的聚酰亚胺真空管内,以利于防护和缓解张力。玻璃外壳的热敏电阻珠由管内伸出,以使热敏反应特性达到最佳。这种设计也尽可能保持热敏电阻珠的直径最小。

这种热敏电阻可测量0.014的外径,因而可以插入小的机壳、较大的仪器或分析设备中,而且以行业标准电阻值供应市场。也可根据导线的类型及长度定制。在空气中,探针的典型耗散常数是每摄氏度0.3mW。

—Susan Wallace


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