公开(公告)号：US20240192172A1

公开(公告)日：2024-06-13

申请号：US18204559

申请日：2023-06-01

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Ilhwan KIM ,  Changhyeon KIM ,  Kangyoon LEE

IPC: G01N29/02 ,  G01N29/44

CPC classification number: G01N29/022 ,  G01N29/4436 ,  G01N2291/02408

Abstract: A dust mass measurement device includes a sensing channel configured to generate a sensing clock signal, a reference channel configured to generate a reference clock signal, a counter configured to generate a first output signal based on the sensing clock signal, and generate a second output signal based on the reference clock signal, and a controller configured to calculate a frequency difference between the sensing clock signal and the reference clock signal based on a difference value between the first output signal and the second output signal, which are received from the counter, and measure a mass of dust based on the calculated frequency difference.

公开(公告)号：US20250123388A1

公开(公告)日：2025-04-17

申请号：US18672718

申请日：2024-05-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jauk GU ,  Eunho LEE ,  Changhyeon KIM ,  Youngdae SHIM ,  Jinhoon PARK

IPC: G01S13/86 ,  G01N22/04 ,  G01N27/90 ,  G01N33/38 ,  G01S13/88

Abstract: A measuring apparatus for a concrete structure includes an eddy current sensor configured to contact the concrete structure; a ground penetrating radar (GPR) sensor configured to contact the concrete structure; at least one memory storing one or more instructions; and a controller operably connected to the eddy current sensor, the GPR sensor, and the at least one memory, wherein the one or more instructions, when executed by the controller, cause the apparatus to: provide a first input signal to the eddy current sensor and a second input signal to the GPR sensor, obtain a first moisture content of a portion of the concrete structure based on an output of the eddy current sensor, obtain a second moisture content of the portion of the concrete structure based on an output of the GPR sensor, and obtain a final moisture content of the portion of the concrete structure based on at least one of the first moisture content and the second moisture content.