Pulsed eddy current metal detector for detecting conductive and ferromagnetic objects, has differential amplifier-integrator that is designed with possibility of subtracting amplitudes of two signal samples recorded at times to determine presence of metal object in search coil field
	ANUCHIN I A
	2024-12-03
专利权人	ANUCHIN I A (ANUC-Individual)
申请日期	2024-12-03
专利号	RU231693-U1
成果简介	NOVELTY - The pulsed eddy current metal detector has a current-limiting resistor that is connected in series with the winding of the inductor coil to which positive polarity power is constantly supplied. The non-inverting input of fifth differential amplifier-integrator (14) is connected through an analog switch to the output of a third amplifier (9) to perform the first signal sampling at time t1. The input of sixth operational amplifier is connected to the output of the fifth differential amplifier-integrator, which amplifies the signal of the difference of the samples obtained at times, and matches with the level required for feeding it to the input of the analog-to-digital converter of the control microcontroller (16). The fifth differential amplifier-integrator is designed with the possibility of subtracting the amplitudes of two signal samples recorded at times to determine the presence of a metal object in the search coil field. USE - Pulsed eddy current metal detector for detecting conductive and ferromagnetic objects in various magnetically permeable environments such as soil, water, concrete and road surfaces. ADVANTAGE - The circuit allows measuring the difference in the amplitudes of samples of the same signal recorded at times to increase the accuracy of the measurements made by increasing the stability of the device and minimizing the impact of changes on the measurement results. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the pulsed eddy current metal detector. 4Current limiting resistor 5Damping resistor 9Third amplifier 14Fifth differential amplifier-integrator 16Control microcontroller
IPC 分类号	G01V-003/10
国家	俄罗斯
专业领域	信息技术
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/14261
专题	中国科学院新疆生态与地理研究所
作者单位	ANUCHIN I A (ANUC-Individual)
推荐引用方式 GB/T 7714	ANUCHIN I A. Pulsed eddy current metal detector for detecting conductive and ferromagnetic objects, has differential amplifier-integrator that is designed with possibility of subtracting amplitudes of two signal samples recorded at times to determine presence of metal object in search coil field. RU231693-U1[P]. 2024.

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