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首页> 外文期刊>Journal of athletic training >Temperature measurement reliability and validity with thermocouple extension leads or changing lead temperature.
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Temperature measurement reliability and validity with thermocouple extension leads or changing lead temperature.

机译：温度测量的可靠性和有效性与热电偶延伸导线或导线温度变化有关。

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CONTEXT: Thermocouples' leads are often too short, necessitating the use of an extension lead. OBJECTIVE: To determine if temperature measures were influenced by extension-lead use or lead temperature changes. DESIGN: Descriptive laboratory study. SETTING: Laboratory. OTHER PARTICIPANTS: Experiment 1: 10 IT-21 thermocouples and 5 extension leads. Experiment 2: 5 IT-21 and PT-6 thermocouples. METHODS: In experiment 1, temperature data were collected on 10 IT-21 thermocouples in a stable water bath with and without extension leads. In experiment 2, temperature data were collected on 5 IT-21 and PT-6 thermocouples in a stable water bath before, during, and after ice-pack application to extension leads. RESULTS: In experiment 1, extension leads did not influence IT-21 validity (P = .45) or reliability (P = .10). In experiment 2, postapplication IT-21 temperatures were greater than preapplication and application measures (P < .05). CONCLUSIONS: Extension leads had no influence on temperature measures. Ice application to leads may increase measurement error.
机译：背景：热电偶的引线通常太短，因此必须使用扩展引线。目的：确定温度测量是否受到延长引线的使用或引线温度变化的影响。设计：描述性实验室研究。地点：实验室。其他参与者：实验1：10条IT-21热电偶和5条延长线。实验2：5个IT-21和PT-6热电偶。方法：在实验1中，在稳定的带或不带有延长引线的水浴中，收集了10个IT-21热电偶的温度数据。在实验2中，在将冰袋应用到延长引线之前，之中和之后，在稳定的水浴中收集了5个IT-21和PT-6热电偶的温度数据。结果：在实验1中，延长线不影响IT-21的有效性（P = 0.45）或可靠性（P = 0.10）。在实验2中，IT-21施用后的温度高于施用前和施用的措施（P <.05）。结论：延长引线对温度测量没有影响。导线上结冰可能会增加测量误差。

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