Biomagnetism measuring device and method for controlling biomagnetism measuring device

A control method for a biomagnetic measuring device that includes:

• a first magnetic sensor and a second magnetic sensor that each include a cell, in which plasma is generated, and detect biomagnetism utilizing an optical pumping action to output the biomagnetism as an optical signal,
• a plasma generator that supplies electric power for generating plasma to each of the cells, and
• a power supply controller that controls the plasma generator,
• a converter that converts the optical signal of the first magnetic sensor into an electric signal;
• and
• a conversion controller that enables or disables the converter for the first magnetic sensor,
• the control method comprising:
• a first step of generating plasma in the cell included in the first magnetic sensor from a first start time to a first end time;
• and
• a second step of generating plasma in the cell included in the second magnetic sensor after a predetermined time has elapsed from the first step,
• wherein the conversion controller enables the converter after the first start time, and disables the converter before the first end time.