Sensing device

• Main Authors: YANG SONGLING, YANG YUQIU
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2010
• Subjects: INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; PHYSICS; TESTING

The invention discloses a sensing device comprising a shell provided with an accommodating cavity, an electromagnetic sensing layer, a mass block, a transmitting coil, a spring and a processor. The electromagnetic sensing layer is provided with a sensing coil matrix. The transmitting coil is fixed on the surface of the mass block close to the sensing coil matrix; the mass block is internally provided with a circuit for electrifying the transmitting coil, so that a magnetic field is generated by the transmitting coil. One end of the spring is connected with the mass block, while the other end is fixed on the side wall of the accommodating cavity; and the mass block is suspended above the electromagnetic sensing layer. When the sensing device moves, the mass block extrudes the spring and moves relative to the electromagnetic sensing layer; the motion track of the transmitting coil passes through all or part of sensing coils in the sensing coil matrix; the sensing coils generate sensing voltage signals caused by