Test and comparison of LVDT signal conditioner performance

Robert S. Weissbach, David R. Loker, Ralph M. Ford

Research output: Contribution to conferencePaperpeer-review

20 Scopus citations

Abstract

This paper presents the results of a novel digital signal processor (DSP) based technique for signal conditioning of Linear Variable Differential Transformers (LVDTs). Signal conditioning is achieved through a modified DSP-based Costas receiver. This system is tested and compared with two commercially available analog signal conditioners and a second DSP-based signal conditioner. The system developed by the authors has better dynamic response than existing solutions and better noise rejection than commercially available solutions. Static testing of the system using both 4-wire and 5-wire LVDTs verifies that the conditioner meets or exceeds the linearity performance of existing signal conditioning systems over the full-scale operating range. In addition, this system requires no phase compensation network or manual tuning.

Original languageEnglish (US)
Pages1143-1146
Number of pages4
StatePublished - 2000
EventIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control' - Baltimore, MD, USA
Duration: May 1 2000May 4 2000

Other

OtherIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control'
CityBaltimore, MD, USA
Period5/1/005/4/00

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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