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Transducer acceleration compensation using a delay to match phase characteristics

一种相位补偿、换能器的技术，应用在使用延迟来匹配相位特性的换能器加速度补偿领域，能够解决测量误差等问题，达到改进有效性的效果

Active Publication Date: 2015-02-25
MTS SYSTEMS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When such a transducer is accelerated, this movement may cause errors in the measurements (inertial errors)

Method used

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  • Transducer acceleration compensation using a delay to match phase characteristics
  • Transducer acceleration compensation using a delay to match phase characteristics
  • Transducer acceleration compensation using a delay to match phase characteristics

Examples

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Embodiment Construction

[0023] This specification introduces a technique for correcting the inertial error of the transducer not only based on a scalar representation of mass (traditional acceleration compensation), but also based on frequency approximated by using delays. Specifically, as an aspect of the present invention, compensation signals generated according to the techniques of the present invention provide phase compensation as a function of frequency by applying a delay.

[0024] As a further aspect, the present technique also differs from known solutions due to this form of phase correction. figure 1 A transducer 10 (for example, force, torque (torque) or pressure) is schematically shown, the transducer 10 providing an output signal 10A, and the sensor 12 capable of providing a signal 12A, which may be directly or indirectly Used to determine acceleration. In the illustrated embodiment, the sensor is an accelerometer that directly provides an acceleration signal; however, this is only one...

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Abstract

A method and system for correcting for the inertial error of a transducer as a function of frequency by applying a delay to a leading signal of the transducer to provide phase compensation.

Description

technical field Background technique [0001] The following discussion is provided for general background information only and is not intended to be used as an aid in determining the scope of the claimed subject matter. [0002] The present invention generally relates to transducers such as force transducers or pressure transducers. More specifically, the invention relates to improved acceleration compensation for transducers. [0003] Acceleration compensation is a technique commonly used in transducers such as force transducers or pressure transducers. When such a transducer is accelerated, this movement may cause errors in the measurements (inertial errors). The transducer includes a sensing element and an additional mass attached to the sensing element. This additional mass can be a fixture mass or a mass due to the structure of the transducer. An additional mass attached to what is considered the active side of the transducer (not part of the unit under test) will cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/02G01L1/26
CPCG01L1/26G01L19/02
Inventor 马克·M·施莱特拜伦·J·萨里
Owner MTS SYSTEMS CORPORATION
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