A new experimental method for the measurement of glass materials refractive index with angle sensor is described

based on measurement of materials refractive index according to the Brewster law and measuring principle of angle with the magnet resistant angle sensor

an electrically measuring technique for non-electric quantity of angle and refractive index is realized.Experimental study shows that the discrepancy between the measuring value and the theoretical value is lower than 3 % when some system errors such as temperature drift of sensor and leveling of equipment don’t take into account.The study also indicates the linearity range of InSb magnetic resistance sensor is about 200°

this is important base of designing auto-measuring system for non-contacting quantities of angle and refractive index.