KR102740092B1 - 진동센서 - Google Patents
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- KR102740092B1 KR102740092B1 KR1020227033038A KR20227033038A KR102740092B1 KR 102740092 B1 KR102740092 B1 KR 102740092B1 KR 1020227033038 A KR1020227033038 A KR 1020227033038A KR 20227033038 A KR20227033038 A KR 20227033038A KR 102740092 B1 KR102740092 B1 KR 102740092B1
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Abstract
Description
도 1은 본 개시의 일부 실시예들에 따른 진동센서를 나타내는 개략도이다.
도 2는 본 개시의 일부 실시예들에 따른 진동센서의 구조를 나타내는 개략도이다.
도 3은 본 개시의 일부 실시예들에 따른 진동센서의 구조를 나타내는 개략도이다.
도 4는 본 개시의 일부 실시예들에 따른 진동조립체를 나타내는 개략도이다.
도 5는 본 개시의 일부 실시예들에 따른 진동센서의 주파수 반응곡선도를 나타내는 개략도이다.
도 6은 본 개시의 일부 실시예들에 따른 진동센서의 구조를 나타내는 개략도이다.
Claims (29)
- 진동센서로서,
음향변환기; 및
상기 음향변환기와 연결되는 진동조립체를 포함하고,
상기 진동조립체는 외부의 진동신호를 상기 음향변환기에 전송하여 전기신호를 생성하도록 구성되고, 상기 진동조립체는 하나 이상의 조들(groups)의 진동막들과 질량블록들을 포함하고, 상기 하나 이상의 조들 중 각각의 조는 진동막 및 질량블록을 포함하고, 상기 질량블록들은 상기 진동막들과 물리적으로 연결되며,
상기 진동조립체는 하나 이상의 타겟 주파수대역들에서 상기 진동센서의 민감도가 상기 음향변환기의 민감도보다 크게 되도록 구성되고, 상기 하나 이상의 조들의 진동막들 및 질량블록들은 상기 진동막들의 진동방향에 따라 순차적으로 배열되고, 상기 진동조립체에서 인접한 진동막들 사이의 거리는 상기 인접한 진동막들의 최대 진폭 이상인, 진동센서. - 제1항에 있어서,
상기 질량블록들의 투영구역은 상기 진동막들의 진동방향에서 상기 진동막들의 투영구역 내에 위치되는, 진동센서. - 제1항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들 중 각각의 조는 하나 이상의 상이한 타겟 주파수대역들 중 하나에 대응하며, 따라서 상기 진동센서의 민감도는 대응하는 타겟 대역에서의 상기 음향변환기의 민감도보다 큰, 진동센서. - 제3항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들의 공진 주파수들은 상기 진동센서의 공진 주파수보다 작으며, 따라서 상기 진동센서의 민감도는 상기 하나 이상의 타겟 주파수대역들에서의 상기 음향변환기의 민감도보다 큰, 진동센서. - 제4항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들의 공진주파수들 중 하나와 상기 음향변환기의 공진 주파수 사이의 차이는 1kHz ~ 10kHz인, 진동센서. - 제3항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들은 복수의 조들의 진동막들 및 질량블록들을 포함하고,
상기 복수의 조들의 진동막들 및 질량블록들 중 적어도 2개 조의 공진 주파수들은 상이한, 진동센서. - 제6항에 있어서,
상기 복수의 조들의 진동막들 및 질량블록들의 공진 주파수들 중에서, 2개의 인접한 공진 주파수들 사이의 차이는 2kHz 보다 작거나 1kHz 이하인, 진동센서. - 제3항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들의 공진 주파수들은 1kHz와 10kHz 사이 이내 또는 1kHz와 5kHz 사이 이내인, 진동센서. - 제1항에 있어서,
상기 진동조립체는 상기 하나 이상의 조들의 진동막들 및 질량블록들을 지지하도록 구성된 지지구조를 더 포함하고,
상기 지지구조는 상기 음향변환기와 물리적으로 연결되고, 상기 하나 이상의 조들의 진동막들 및 질량블록들은 상기 지지구조와 연결되는, 진동센서. - 제9항에 있어서,
상기 지지구조는 기밀재료로 제작되는, 진동센서. - 제9항에 있어서,
상기 하나 이상의 조들의 진동막들 및 질량블록들 중 각각의 질량블록에 대해, 질량블록과 연결된 진동막의 표면에 수직이 되는 방향에서 상기 질량블록의 투영면적은 상기 지지구조의 투영면적과 중첩되지 않는, 진동센서. - 제1항에 있어서,
상기 질량블록들은 상기 진동막들에 동심인, 진동센서. - 제1항에 있어서,
상기 진동막들은 통기되도록 구성되는, 진동센서. - 제13항에 있어서,
상기 진동막들에는 관통홀들이 제공되거나 또는 상기 진동막들은 통기막을 포함하는, 진동센서. - 제13항에 있어서,
상기 진동막들 중에서, 상기 음향변환기로부터 가장 멀리 떨어진 진동막은 통기되지 않도록 구성되는, 진동센서. - 제1항에 있어서,
상기 진동조립체는 제한구조를 더 포함하고,
상기 제한구조는 상기 진동조립체에서 인접한 진동막들 사이의 거리가 상기 인접한 진동막들의 최대진폭 이상이 되도록 구성되는, 진동센서. - 제1항에 있어서, 상기 음향변환기는 기전도 마이크로폰이고,
상기 하나 이상의 조들의 진동막들 및 질량블록들의 공진 주파수들은 1kHz~10kHz로써 상기 기전도 마이크로폰의 공진주파수보다 낮도록 구성되는, 진동센서. - 제17항에 있어서,
상기 기전도 마이크로폰은 소리픽업홀을 포함하고,
상기 하나 이상의 조들의 진동막들 및 질량블록들은 상기 소리픽업홀에서 상기 소리픽업홀의 반지름 단면에 평행하게 배치되거나, 또는 상기 소리픽업홀의 밖에 배치되는, 진동센서. - 제18항에 있어서,
상기 질량블록들은 상기 소리픽업홀의 내벽에 접촉하지 않는, 진동센서. - 소리입력장치에 있어서,
진동센서를 포함하고, 상기 진동센서는:
음향변환기; 및
상기 음향변환기와 연결되는 진동조립체를 포함하고,
상기 진동조립체는 외부의 진동신호를 상기 음향변환기에 전송하여 전기신호를 생성하도록 구성되고, 상기 진동조립체는 하나 이상의 조들(groups)의 진동막들 및 질량블록들을 포함하고, 상기 하나 이상의 조들 중 각각의 조는 진동막 및 질량블록을 포함하고, 상기 질량블록들은 상기 진동막들과 물리적으로 연결되며,
상기 진동조립체는 하나 이상의 타겟 주파수 대역들에서 상기 진동센서의 민감도가 상기 음향변환기의 민감도보다 크게 되도록 구성되고, 상기 하나 이상의 조들의 진동막들 및 질량블록들은 상기 진동막들의 진동방향에 따라 순차로 배열되고, 상기 진동조립체에서 인접한 진동막들 사이의 거리는 상기 인접한 진동막들의 최대 진폭 이상인, 소리입력장치. - 삭제
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