Electronic azimuth meter and timepiece

A system for adjusting an electronic azimuth meter, the system comprising:

• a magnetic field generating apparatus for performing an adjusting magnetic field generating sequence by generating magnetic fields in a given sequence starting with a strong magnetic field having a magnitude larger than that of the Earth's geomagnetism, the strong magnetic field being used for starting a process of adjusting the electronic azimuth meter;
• and
• an electronic azimuth meter having a magnetic detector and a control unit for acquiring output data of the magnetic detector by performing a data acquisition sequence for adjusting the electronic azimuth meter in synchronization with the magnetic field generating sequence and starting the data acquisition sequence when the magnetic detector is arranged below a magnetic field produced by the magnetic field generating apparatus in the magnetic field generating sequence and senses the strong magnetic field.

In a system for adjusting an electronic azimuth meter:

• a magnetic field generating apparatus for generating a strong magnetic field having a magnitude larger than that of the Earth's geomagnetism;
• and a control unit for controlling the magnetic field generating apparatus to generate a sequence of magnetic fields starting with the strong magnetic field, the strong magnetic field being used to control the electronic azimuth meter to commence an adjusting data acquisition sequence in synchronization with the sequence of magnetic fields by acquiring output data of a magnetic detector.

In an electronic azimuth meter having a magnetic detector and a control unit for acquiring output data of the magnetic detector in accordance with a process of acquiring data for adjusting the electronic azimuth meter in synchronization with a sequence of generated magnetic fields:

• a control unit for starting the process of acquiring data for adjusting the electronic azimuth meter when a strong magnetic field having a magnitude larger than that of the Earth's geomagnetism representing a start of the sequence of magnetic fields is detected by the magnetic detector.

A method for adjusting an electronic azimuth meter comprising the steps of:

• performing a magnetic field generating sequence by generating a sequence of magnetic fields used for adjusting the electronic azimuth meter, the sequence of magnetic fields commencing with generation of a strong magnetic field having a magnitude larger than that of the Earth's geomagnetism;
• providing, within the strong magnetic field, an electronic azimuth meter having a magnetic detector and a control unit for performing a data acquisition and adjustment process in response to detection of the strong magnetic field, so that the control unit commences the data acquisition and adjustment process when the strong magnetic field is detected and the electronic azimuth meter is not electrically connected to a magnetic field generating apparatus which generates the sequence of magnetic fields.