Air Temperature Distribution Measurement Using Asynchronous-Type Sound Probe
Air Temperature Distribution Measurement Using Asynchronous-Type Sound Probe
复制标题
使用异步型声探头测量空气温度分布
DOI:
10.1143/jjap.48.07gb03
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发表时间:
2009
影响因子:
1.5
通讯作者:
K. Mizutani
中科院分区:
文献类型:
--
作者:
Yosuke Katano;N. Wakatsuki;K. Mizutani
In conventional temperature measurement using a sound probe, the operation beginnings of two acoustic sensors must be completely synchronized to measure time of flight (TOF), tf, because the precision of synchronization determines TOF measurement accuracy. A wireless local area network (LAN) is convenient for constructing a sensing grid; however, it causes a fluctuation in the delay of millisecond order. Therefore, it cannot provide sufficient precision for synchronizing acoustic sensors. In previous studies, synchronization was achieved by a trigger line using a coaxial cable; however, the cable reduces the flexibility of a wireless sensing grid especially in larger-scale measurement. In this study, an asynchronous-type sound probe is devised to compensate for the effect of the delay of millisecond order caused by the network. The validity of the probe was examined, and the air temperature distribution was measured using this means. A matrix method is employed to obtain the distribution. Similar results were observed using both asynchronous-type sound probes and thermocouples. This shows the validity of the use of a sensing grid with an asynchronous-type sound probe for temperature distribution measurement even if the trigger line is omitted.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Tomoki Nakamura;Kyohei Sawamura;Koichi Mizutani;Naoto Wakatsuk;Limi Okushima and Sadanori Sasei
通讯作者:
Limi Okushima and Sadanori Sasei
DOI:
--
发表时间:
2005
期刊:
Japanese Journal of Applied Physics Vol.44, Part 1, No.6B
影响因子:
--
作者:
Koichi Mizutani;Riku Futamata;Kazuya Itoga and Masahisa Ishii
通讯作者:
Kazuya Itoga and Masahisa Ishii
DOI:
--
发表时间:
2005
期刊:
Japanese Journal of Applied Physics Vol.44, Part 1, Mo. 6B
影响因子:
--
作者:
Kousuke Kudo;Koichi Mizutani and Kazuya Itoga
通讯作者:
Koichi Mizutani and Kazuya Itoga
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Satoshi Kawabe;Koichi Mizutani
通讯作者:
Koichi Mizutani
DOI:
--
发表时间:
2007
期刊:
Japanese Journal of Applird Physics Vol.46, Part 1, No.7B
影响因子:
--
作者:
Ikumi Saito;Koichi,izutani;and Naoto Wakatsuki
通讯作者:
and Naoto Wakatsuki