IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2005-01-20 10:55
Characteristics of 60kHz signal, which is emitted from home electric appliances, measured by a small roop antenna for radio wave clocks
Ran Nakai, Yoshifumi Shimoshio (KNCT), Hideo Abe, Kaoru Someya (CASIO), Arisa Mikami, Mai Higashi, Yoshiko Yamashita (KNCT)
Abstract (in Japanese) (See Japanese page) 
(in English) In 1999, it has started the 40kHz long wave signal transmission for the Japan Standard Time from Mt. Ohtakadoya in Fukushima. Since the transmission started, various radio wave clocks have come to be used widely and there should be more needs for exact time because of the Ubiquitous era. The electromagnetic environments for the long waves (40kHz and 60kHz) used by radio wave clocks are not fully conducted yet. In this report, we measured the magnetic field intensity of the 60kHz standard time wave in Kyushu area by an antenna that is used for a radio wave clock. Then, we measured the magnetic near field strength generated from various home electric appliances, and investigated about the time waveform, frequency spectrum, and the time dependency of generated signal’s frequency. As a result, we have noticed that there are various home electric appliances that generate 40～60kHz low frequency noise signals and the frequency of signal generated from an inverter-type fluorescent lamp changes according to twice the frequency of a commercial power supply.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio wave clock / Standard time transmission / Loop antenna / Low frequency magnetic field / / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 562, EMCJ2004-121, pp. 25-30, Jan. 2005.
Paper # EMCJ2004-121 
Date of Issue 2005-01-13 (EMCJ) 
ISSN Print edition: ISSN 0913-5685
Download PDF

Conference Information
Committee EMCJ  
Conference Date 2005-01-20 - 2005-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) NiCT Okinawa Subtropical Environment Remote Sensing Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2005-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Characteristics of 60kHz signal, which is emitted from home electric appliances, measured by a small roop antenna for radio wave clocks 
Sub Title (in English)  
Keyword(1) Radio wave clock  
Keyword(2) Standard time transmission  
Keyword(3) Loop antenna  
Keyword(4) Low frequency magnetic field  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ran Nakai  
1st Author's Affiliation Kumamoto National College of Technology (KNCT)
2nd Author's Name Yoshifumi Shimoshio  
2nd Author's Affiliation Kumamoto National College of Technology (KNCT)
3rd Author's Name Hideo Abe  
3rd Author's Affiliation CASIO COMPUTER CO.LTD (CASIO)
4th Author's Name Kaoru Someya  
4th Author's Affiliation CASIO COMPUTER CO.LTD (CASIO)
5th Author's Name Arisa Mikami  
5th Author's Affiliation Kumamoto National College of Technology (KNCT)
6th Author's Name Mai Higashi  
6th Author's Affiliation Kumamoto National College of Technology (KNCT)
7th Author's Name Yoshiko Yamashita  
7th Author's Affiliation Kumamoto National College of Technology (KNCT)
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2005-01-20 10:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2004-121 
Volume (vol) vol.104 
Number (no) no.562 
Page pp.25-30 
#Pages 6 
Date of Issue 2005-01-13 (EMCJ) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan