JP7049431B2 - 3dプリンティングに基づくフレキシブル圧電センサおよびその製造方法 - Google Patents
3dプリンティングに基づくフレキシブル圧電センサおよびその製造方法 Download PDFInfo
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Description
Claims (9)
- 磁性部と導電性部を含み、
前記導電性部が、相対的に設置された2つの基板および2つの前記基板の間に設置された螺旋構造を含み、2つの前記基板および前記螺旋構造が、いずれも導電性の金属材質であり、
前記磁性部が、フレキシブルな多孔構造を表し、2つの前記基板の間に設置され、磁場を生成するために使用され、
前記基板が外部圧力を受けた時、前記螺旋構造と前記磁性部が同時に圧縮され、前記螺旋構造を通過する磁束に変化が生じ、2つの前記基板の電圧に変化が生じるため、前記基板の間の電圧変化を測定して外部圧力の変化を反映させることにより、圧力測定プロセスを実現する3Dプリンティングに基づくフレキシブル圧電センサ。 - 前記磁性部の原材料が、ポリマー粉末と磁性粉末を混合して形成された複合粉末であり、前記ポリマー粉末が、熱可塑性ポリウレタン(TPU)またはポリジメチルシロキサン(TPMS)であり、前記磁性粉末が、ネオジム鉄ホウ素(NdFeB)磁性粉末、鉄クロムコバルトベースの永久磁性合金粉末または永久磁性フェライト粉末である請求項1に記載の3Dプリンティングに基づくフレキシブル圧電センサ。
- 前記磁性粉末の質量分数が、10%~40%である請求項2に記載の3Dプリンティングに基づくフレキシブル圧電センサ。
- 前記螺旋構造の圧縮弾性率と前記磁性部の圧縮弾性率の比率が、0.1~10である請求項1に記載の3Dプリンティングに基づくフレキシブル圧電センサ。
- 前記基板の上に、前記磁性部を挟みつけて固定するための凹部が設置された請求項1に記載の3Dプリンティングに基づくフレキシブル圧電センサ。
- 前記圧電センサが、1つのユニットであり、複数ユニットを直列または並列に接続することにより、複数ユニットの圧電センサの信号が取得され、増幅される請求項1に記載の3Dプリンティングに基づくフレキシブル圧電センサ。
- 請求項1~6のいずれか1項に記載の前記圧電センサの製造方法であって、
S1:ポリマー粉末と磁性粉末を原料として選択し、二者を混合して複合粉末を調製し、前記導電性部における螺旋構造の圧縮弾性率を計算および取得し、前記磁性部の多孔構造を構築するとともに、前記多孔構造の圧縮弾性率を計算および取得し、3Dプリンティング成形方法を利用して前記多孔構造を成形することにより、所望の磁性部を取得し;前記磁性部に対して磁化を行い、前記磁性部が永久磁性を取得できるようにするステップと、
S2:前記導電性部の三次元構造を構築し、同時に、前記多孔構造の圧縮弾性率に基づいて前記螺旋構造の圧縮弾性率を構築し、前記導電性部の螺旋構造の圧縮弾性率と前記多孔構造の圧縮弾性率の比率を0.1~10にし、前記導電性部の原材料を選択し、前記原材料を利用して三次元モデルに基づいて3Dプリンティング成形を実行することにより、所望の導電性部を取得するステップと、
S3:前記永久磁性を有する磁性部を前記導電性部の基板の間に組み立てて、所望の圧電センサを取得するステップと、
を含む製造方法。 - ステップS2において、前記3Dプリンティング成形方法が、選択的レーザ溶融法(SLM)、電子ビーム積層造形法(EBM)、またはレーザー直接積層法(LENS)の金属3Dプリンティング技術である請求項7に記載の製造方法。
- ステップS1において、前記3Dプリンティング成形方法が、選択的レーザー焼結法(SLS)、熱溶解積層法(FDM)、または紫外線による光硬化のポリマー3Dプリンティング技術である請求項7に記載の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11255188B2 (en) * | 2020-05-01 | 2022-02-22 | Saudi Arabian Oil Company | Logging tool with 4D printed sensing system |
CN112140535A (zh) * | 2020-07-23 | 2020-12-29 | 西安交通大学 | 一种基于4d打印的可调声学超材料的制备方法 |
CN112183519B (zh) * | 2020-09-25 | 2023-02-10 | 华中科技大学 | 一种基于4d打印的仿神经视觉传感器 |
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CN114921085A (zh) * | 2022-05-12 | 2022-08-19 | 华中科技大学 | 4d打印磁性复合粉材、仿食管软体机器人及其制备方法 |
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