Verification of the Time Accuracy of a Magnometer by Using a GPS Pulse Generator

Data Science Journal

Yasuhiro Minamoto¹  Toshiaki Mishima¹  Nobuyuki Kumasaka¹  Takeshi Oowada¹  Takashi Okawa² 

[1] Kakioka Magnetic Observatory, Japan Meteorological Agency, Kakioka 595 Ishioka-shi, Ibaraki, Japan;Matsushiro Seismological Observatory, Japan Meteorological Agency, Nishijo 3511, Matsushiro-machi, Nagano-shi, Nagano-ken, Japan;

关键词: Geomagnetic field;    One-second data;    Time accuracy;    Fluxgate magnetometer;   

DOI  :  10.2481/dsj.IAGA-10

来源: DOAJ

【 摘 要 】

The time accuracy of geomagnetic data is an important specification for one-second data distributions. We tested a procedure to verify the time accuracy of a fluxgate magnetometer by using a GPS pulse generator. The magnetometer was equipped with a high time resolution (100 Hz) output, so the data delay could be checked directly. The delay detected from one-second data by a statistical method was larger than those from 0.1-s- and 0.01-s-resolution data. The test of the time accuracy revealed the larger delay and was useful for verifying the quality of the data.

【 授权许可】

Unknown