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Acceleration sensor

An acceleration sensor, acceleration technology, applied in the direction of measurement of acceleration, multi-dimensional acceleration measurement, speed/acceleration/shock measurement, etc., can solve problems such as detection distortion

Pending Publication Date: 2022-05-06
KISTLER HLDG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, this force shunt distorts the detection of acceleration

Method used

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  • Acceleration sensor
  • Acceleration sensor
  • Acceleration sensor

Examples

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Embodiment Construction

[0112] figure 1 and figure 2 Parts of two embodiments of the acceleration sensor 1 according to the invention are shown. The acceleration sensor 1 has a sensor unit 1.1, a housing 1.2, a converter unit 1.3 and a signal output 1.4. The acceleration sensor 1 is arranged in a Cartesian coordinate system with three axes x, y, z, which are also referred to as the transverse axis x, the longitudinal axis y and the vertical axis z.

[0113] The housing 1.2 protects the acceleration sensor 1 from harmful environmental influences such as pollutants (dust, moisture, etc.) and from electromagnetic disturbances in the form of electromagnetic radiation. The housing 1.2 is made of a mechanically resistant material, such as pure metals, nickel alloys, cobalt alloys, iron alloys, and the like. The housing 1.2 has a rectangular cross-section with a width along the transverse axis x of preferably less than 5 cm, a length along the longitudinal axis y of preferably less than 5 cm, and a hei...

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Abstract

The invention relates to an acceleration sensor (1), comprising: a base body (12), which has a tangential side (12.1, 12.2, 12.3, 12.4), which is arranged tangentially to a vertical axis (z), and a normal side (12.6, 12.7), which is arranged normally to the vertical axis; at least one piezoelectric element fastened to the tangential side; at least one test block fastened on the piezoelectric element; a housing (1.2) and a signal output (1.4), which is fastened to the housing and has a signal conductor; wherein the tangential side, on which no piezoelectric element is fastened, is arranged at a distance from the signal conductor across an assembly gap (1.24) extending perpendicular to the vertical axis; the first normal side (12.7) or a carrier (13.7) fastened to the first normal side has a base output conductor; the base output conductor is in direct contact with the signal conductor across an assembly gap perpendicular to the vertical axis.

Description

technical field [0001] The invention relates to an acceleration sensor according to the preambles of the independent claims. Background technique [0002] Sensing the acceleration of a physical object is required in many very different applications, such as robotics, power generation, transportation, etc. In this case, shocks acting on the physical object and vibrations of the physical object are detected as accelerations. Acceleration is gravitational acceleration g=9.81msec -2 The multiple of is given. The typical magnitude of the detected acceleration is + / - 500g in the measurement range from 2Hz to 10kHz. To detect acceleration, an acceleration sensor is fastened to a physical object. [0003] Patent document CH399021A1 shows such an acceleration sensor with a test piece, a piezoelectric system and a base body. In order to protect against harmful environmental influences, the acceleration sensor has a housing in which the test piece, the piezoelectric system and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/09G01P15/18G01P1/02G01P15/08
CPCG01P15/09G01P15/18G01P1/023G01P15/0915G01P15/097G01P15/0802
Inventor M·拉夫兰奇T·弗罗门威勒D·韦伯
Owner KISTLER HLDG AG
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