Patent ID: 9109923
Filing Date: 2015-08-18
Classification: G01D,G01F

Abstract:
1. An electromagnetic pushing and knocking-type object detector, characterized in that it comprises a magnetic swinging rod; an electromagnet that is disposed on one side of the magnetic swinging rod; and an electronic module that controls the electromagnet in driving the magnetic swinging rod to swing, and amplifies, processes, and time-delay outputs swinging signals of the magnetic swinging rod, which the swinging signals are collected by the electromagnet, wherein: said magnetic swinging rod is suspended with a suspension device on one side of a main housing, and the electromagnet, which is composed of an electromagnet iron core and an electromagnet coil, is disposed inside the main housing; said electronic module comprising a power supply circuit, a pulse generating circuit, a pulse driving circuit, a signal amplification circuit, a signal processing circuit which can determine whether a solid medium or liquid medium is present, and a signal time-delay output circuit, all of the above circuits being disposed within the main housing or being isolated from the main housing and enclosed separately.