发明公开
- 专利标题: HIGH-BANDWIDTH VIBRATION SENSOR
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申请号: EP23151597.4申请日: 2023-01-13
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公开(公告)号: EP4400816A1公开(公告)日: 2024-07-17
- 发明人: Looser, Flurin , Mrcarica, Zeljko , Ryter, Roland , Schalch, Thomas , Keitel, Robert Christian
- 申请人: Sensirion AG
- 申请人地址: CH 8712 Stäfa Laubisrütistrasse 50
- 专利权人: Sensirion AG
- 当前专利权人: Sensirion AG
- 当前专利权人地址: CH 8712 Stäfa Laubisrütistrasse 50
- 代理机构: E. Blum & Co. AG
- 主分类号: G01H1/00
- IPC分类号: G01H1/00 ; G01H3/00 ; H03M1/06 ; H03M1/12 ; G01H11/06 ; G01M13/028 ; H03H11/12
摘要:
The invention refers to a sensor arrangement (100) for sensing vibrations. The sensor arrangement (100) comprises a vibration sensor (10) configured to provide a sensor signal (101 and an amplifier unit (20) configured to amplify the sensor signal (101) over a predefined operation frequency band (61, 71) with a gain according to a first transfer function (60, 70) and to provide an analog amplifier output signal (102. The sensor arrangement further comprises an analog-to-digital converter, ADC, (30) configured to convert the amplifier output signal (102) into a first digital signal (103); and a digital compensation unit (40) configured to apply a second transfer function on the first digital signal (103), wherein the second transfer function is an inverse function of the first transfer function (60, 70). The operation frequency band (61, 71) comprises a low-frequency band (62, 72) and a high-frequency band (63, 73) and the gain of the predefined first transfer function (60, 70) is lower in the low-frequency band (62, 72) than in the high-frequency band (63, 73).
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