APPARATUS AND METHOD FOR MEASURING WEAK MAGNETIC FIELD VARYING RELATED TO PLACE AND TIME

PURPOSE: To obtain an inexpensive living body magnetic measuring device by constituting a measuring device with a retaining device to be inspected, a sensor consisting of a specific number of primary magnetic field gradient meters and DC squids, and a shielding room with a specific shielding coeffic...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	EKUHARUTO HEENITSUHI, JIIKUFURIITO SHIYUNAIDAA, HERUMUUTO RAIHIENBERUGAA
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEDICAL OR VETERINARY SCIENCE PHYSICS SURGERY TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: To obtain an inexpensive living body magnetic measuring device by constituting a measuring device with a retaining device to be inspected, a sensor consisting of a specific number of primary magnetic field gradient meters and DC squids, and a shielding room with a specific shielding coefficient. CONSTITUTION: A body position retaining device 5 retains an inspection object 1 with a source Q for generating a weak magnetic field. A sensor device 7 consists of an array of at least ten primary magnetic field gradient meters and corresponding number of DC SQUIDs and is retained by a retaining part 6. Then, a shielding room 8 for shielding the entire part and an electronic device for amplifying the signal of a magnetic field gradient meter and evaluating it are provided. Each magnetic field gradient meter has a magnetic field and a compensation coil and is subjected to induction coupling to the SQUID. The shielding room 8 has shielding coefficients of 10, 100, and 1000 for an alternate magnetic field of 0.5, 5, and 50Hz or higher.