Abstract Heat stress in domestic animal production consistently alters several physiological, growth, and reproductive metrics within the livestock industry. To increase commercial productivity and general animal husbandry, the agricultural research community has been investigating technologies to combat the effects of heat stress for several decades. A hog cooling pad has been developed at Purdue University through a departmental collaboration between Agricultural & Biological Engineering and Animal Sciences. One of the main points of interest in the hog cooling pad research investigation is the accurate expression of the heat transfer from the sow to the copper coil coolant system. It is vital to obtain accurate temperature data in real time to properly manage the coolant flow in the device. This research project investigated the effect of the temperature probe orientation. Several cooling pad temperature probe orientations were proposed, while trying to keep every other operational aspect of the hog cooling pad the same. Temperature data from two separate collection systems were assessed using analyses that document differences in the selected probe’s responsiveness and accuracy. Three placement areas were examined: the blade, center, and ham locations. This research demonstrated conclusively that the type K thermocouple collection system maintained an accurate, rapid, and consistent performance as the calibrated system, and the Hilitchi® digital probes varied substantially in accuracy and responsiveness. Calibration offset values for digital probes were documented in the 4–5 °C range. This was completely unacceptable for the small ranges of interest in the hog cooling pad work. Horizontal orientations were shown to be the most responsive against 45° orientations with: (tH(37.8) = −14.09, p

中文翻译：

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温度探头方向对普渡猪冷却垫数据采集的影响

摘要 家畜生产中的热应激不断改变畜牧业中的几个生理、生长和繁殖指标。为了提高商业生产力和一般畜牧业，农业研究界几十年来一直在研究对抗热应激影响的技术。普渡大学通过农业与生物工程与动物科学部门的合作开发了一种猪冷却垫。猪冷却垫研究调查的主要兴趣点之一是从母猪到铜盘管冷却系统的热传递的准确表达。实时获取准确的温度数据对于正确管理设备中的冷却剂流量至关重要。该研究项目调查了温度探头方向的影响。提出了几种冷却垫温度探头方向，同时试图保持生猪冷却垫的所有其他操作方面相同。来自两个独立收集系统的温度数据使用记录所选探头响应性和准确性差异的分析进行评估。检查了三个放置区域：刀片、中心和火腿位置。这项研究最终证明，K 型热电偶收集系统与校准系统一样保持了准确、快速和一致的性能，而 Hilitchi® 数字探头在准确性和响应性方面差异很大。数字探头的校准偏移值记录在 4–5 °C 范围内。对于生猪冷却垫工作中的小范围兴趣，这是完全不可接受的。水平方向对 45° 方向的响应最灵敏：(tH(37.8) = -14.09, p