Evaluation of the frequency characteristics of cntTSP measurement for unsteady low-speed flow
Evaluation of the frequency characteristics of cntTSP measurement for unsteady low-speed flow
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非定常低速流cntTSP测量频率特性评估
DOI：
10.1088/1361-6501/acb8d0
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发表时间：
2023
影响因子：
2.4
通讯作者：
Hiroki Nagai
中科院分区：
文献类型：
--
作者：
Tsubasa Ikami;Yasufumi Konishi;Hiroki Nagai
碳纳米管温敏涂料（cntTSP）是一种利用温敏涂料（TSP）的流体测量技术。它用作光学温度传感器，具有薄薄的碳纳米管层来加热 TSP 层。本研究研究了低速流中 cntTSP 测量的频率特性。在低速风洞试验中，通过对平板引入间歇性局部扰动，使平板上的流场发生周期性变化。 cntTSP 测量是在局部扰动之后进行的，以评估与流量周期性变化相关的温度变化。在双对数图中，温度变化的幅度与频率近似线性减小。此外，25 Hz时的温度振幅为0.008 K，需要检测非常小的温度变化来评估高频现象。
Carbon nanotube temperature-sensitive paint (cntTSP) is a fluid measurement technology that utilizes temperature-sensitive paint (TSP). It works as an optical temperature sensor, with a thin layer of carbon nanotubes to heat the TSP layer. This study investigated the frequency characteristics of cntTSP measurements in low-speed flow. The flow field on the flat plate was periodically changed by introducing intermittent local disturbances to the flat plate in a low-speed wind tunnel test. cntTSP measurement was conducted behind the local disturbance to evaluate changes in the temperature associated with periodic changes in the flow. The amplitude of the temperature change decreased approximately linearly with the frequency in a double-logarithmic graph. Moreover, the temperature amplitude at 25 Hz was 0.008 K, and it was necessary to detect a very small temperature change to evaluate high-frequency phenomena.
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影响因子：
64.8
作者：
IIJIMA, S
通讯作者：
IIJIMA, S
DOI：
10.3390/s22020657
发表时间：
2022-01-15
期刊：
Sensors (Basel, Switzerland)
影响因子：
--
作者：
Bitter M;Hilfer M;Schubert T;Klein C;Niehuis R
通讯作者：
Niehuis R
影响因子：
2.2
作者：
Ikami, Tsubasa;Fujita, Koji;Nagai, Hiroki
通讯作者：
Nagai, Hiroki
用于动态检测层流-湍流转变的红外热成像
影响因子：
2.4
作者：
Filius;Tropea;Grundmann
通讯作者：
Grundmann