| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic field measurement device for an organism, capable of aligning a sensor at an optimum measurement point. SOLUTION: This device is provided with a shield room 1, a bed 4, a SQUID flux meter to detect a magnetic flux from a subject body, a cryostat 2 and a computer 90 to collect the output of a driving and detecting circuit, which drives the SQUID flux meter and detects a signal, for processing operation. In the shield room 1, a means (monitor display 80) to display the waveform of a magnetic field measured and the distribution of the magnetic field obtained by processing operation, a SQUID flux meter operating button 19a to control the operation of the SQUID flux meter, a data collection starting button 19b to control the start of data collection and a speaker 100 to generate sound in synchronization with the heartbeats of a mother's body and a fetus are arranged. Outside the shield room 1, an amplifier filter unit 60 and a means 11 to detect heartbeats and the number of heartbeats from the measured field waveform are arranged. In this way, the magnetic field can be detected with high sensitivity. |
