TWP-W146 magnetoresistance sensor and geomagnetic field instrument Introduction: As a natural magnetic source, the geomagnetic field has important applications in military, aviation, navigation, industry, medicine, exploration and other scientific research. This instrument uses a new Permalloy magnetoresistive sensor to measure the important parameters of the geomagnetic field. Through experiments, you can master the calibration of the magnetoresistive sensor and the method of measuring the horizontal component and magnetic dip of the geomagnetic field, and understand an important means and experimental method of measuring the weak magnetic field. characteristic: 1. On the basis of the original Type 2, the rotary table of the base is added. The turntable is carefully designed to rotate freely and adjust the horizontal and vertical position conveniently. 2. The sensitivity of the new magnetoresistive sensor is up to 50V/T, the resolution is up to 10-7-10-8T, and the stability is good. It is convenient for students to master the calibration of the new sensor, and the method of measuring the weak magnetic field with the magnetoresistive sensor. The accuracy of measuring the geomagnetic field parameters is high. 3. This instrument can not only measure the horizontal component of the geomagnetic field, but also measure the size and direction of the geomagnetic field, which cannot be achieved by tangent galvanometer and other geomagnetic field experimental instruments. Experiment items: 1. Be familiar with the method of magnetoresistive sensor to measure weak magnetic field, and measure the sensitivity of magnetoresistive sensor. 2. Measure the horizontal component, vertical component and magnetic inclination of the geomagnetic field, and calculate the magnetic induction of the geomagnetic field. Technical parameters: 1. Magnetoresistive sensor: working voltage 5V, sensitivity 50V/T 2. Helmholtz coil: single coil turns 500, radius 10cm 3. DC constant current source: output current 0-199.9mA, continuously adjustable, LCD display 4. DC voltmeter: range 0-19.99mV resolution 0.01mV LCD display
Introduction: As a natural magnetic source, the geomagnetic field has important applications in military, aviation, navigation, industry, medicine, exploration and other scientific research. This instrument uses a new Permalloy magnetoresistive sensor to measure the important parameters of the geomagnetic field. Through experiments, you can master the calibration of the magnetoresistive sensor and the method of measuring the horizontal component and magnetic dip of the geomagnetic field, and understand an important means and experimental method of measuring the weak magnetic field.
