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arXiv 2308.03435physics.ins-detphysics.flu-dyn
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差分温度风速仪

Differential Temperature Anemometer

Holger Nobach

AI总结:

本文提出差分温度风速仪,利用加热与冷却功率的瞬时不平衡产生温度梯度,克服传统热式风速仪因热惯性导致的响应时间不足问题,实现瞬时响应。

摘要:

常见的热式风速仪(热线、热膜或类似类型)基于加热传感器的电功率与冷却传感器的环境介质对流之间的热平衡原理。由于传感元件的热惯性,此类仪器在快速波动的流动过程中响应时间往往不足。通过利用加热功率与冷却功率之间的瞬时不平衡(该不平衡导致传感器产生温度梯度),可以实现测量系统的瞬时响应。

英文摘要:

Common thermal anemometers (hot-wire, hot-film, or similar) are based on the thermal equilibrium between the electrical power heating the sensor and the convection of the ambient medium cooling the sensor. The response times of such instruments are often insufficient in rapidly fluctuating flow processes due to the thermal inertia of their sensing elements. By using the instantaneous imbalance between the heating and the cooling power, which leads to a temperature gradient of the sensor, an instantaneous response of the measurement system can be achieved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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