Pulsed Electroacoustic Measurement Systems (PEA)
Box Elder Innovations’ Pulsed Electro-Acoustic (PEA) Measurement Systems are laboratory-based with capability to perform controlled studies on space charge accumulation and migration behavior in dielectric materials. Results from these studies are essential in understanding existing dielectric materials and supporting development of advanced materials that will help mitigate problems caused by charge buildup and dielectric breakdown.
BEI is the only manufacturer of PEA systems in the United States and is set up to build these systems based on customer needs and requirements. Systems are designed for testing dielectric films and have the following features:
- Computer controlled high voltage DC bias.
- Optional computer-based temperature control (0 to 60 deg. C range typical or 0 to 90 C range high temperature).
High voltages can be applied across the sample to simulate external electric fields for studying field-affected charge migration and dielectric breakdown behaviors.
PEA Measurement System software capabilities include:
- data acquisition
- data processing and analysis
- system component controls
- physics-based modeling for predicting PEA waveforms.
Model-based calculations help operators develop intuition and understanding of waveform behavior needed to interpret measurements and design experiments.
Our PEA Measurement System can be used to study embedded charge in dielectric materials for applications such as:
- high-voltage DC and AC power transmission cable insulation
- Thin dielectric films applications
- Material development studies
- spacecraft charging issues
Our system is applicable to research institutions or industries that have interest in studying the behavior of charged dielectric films.
A known cause for satellite failure is charge build-up in dielectric films used for thermal and electrical insulation in spacecraft. This build-up can lead to electrostatic discharge events that can damage satellite components. Also, charge build up and migration in high voltage DC and AC power transmission line insulator materials can reduce service life of transmission cables.
The Box Elder Innovations' PEA Measurement System is a laboratory-based system that provides a means to perform controlled studies on space charge accumulation and migration behavior in dielectric materials. Results from these studies are essential in supporting development of modified or new materials that will help mitigate problems caused by charge build -up and dielectric break-down.
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