Bridge testing: digital wireless technology

Ensuring the integrity and performance of the country’s bridges and infrastructure is critical after the collapse of the bridge in Minneapolis, MN, in August. Physical Acoustics Corporation (PAC) has developed digital wireless sensor technology that assists bridge operators in preventing bridge failures.

09/01/2007


Ensuring the integrity and performance of the country’s bridges and infrastructure is critical after the collapse of the bridge in Minneapolis, MN, in August. Physical Acoustics Corporation (PAC) has developed digital wireless sensor technology that assists bridge operators in preventing bridge failures.

Bridges are usually evaluated and inspected visually, but more advanced technologies are required to assist in making decisions for planning for maintenance, repair, rehabilitation, or replacement.

PAC applies sound technology called acoustic emission (AE) for bridge monitoring, and other sensors such as vibration accelerometers and corrosion gages to assess causes of failures and predict bridge life. Cracks can be heard from remote distances by using AE sensors.

Since the early 90s AE has been investigated by the Federal Highway Administration (FHWA), which continues to fund development, testing, and demonstrations of AE. “It is only because of state DOTs and government funding that has prevented wide scale deployment of on-line monitoring using sensor fusion and wireless technologies on bridges,” states Dr. Sotirios J. Vahaviolos, founder and chairman/CEO of PAC. “We have the technology for bridge health monitoring now and are ready to team up with bridge operators in order to prevent catastrophic failures from naturally occurring structural flaws that are the result of an aging infrastructure.”

www.pacndt.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me