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Non-Intrusive Ultrasonic Corrosion/Erosion Monitoring Systems

Metal Samples along with Sensor Networks Inc., offers smartPIMS® non-intrusive ultrasonic corrosion/erosion monitoring products.

Smarter Remote Non-Intrusive Corrosion Monitoring with Installed Ultrasonic Sensors

Take advantage of remarkably cost-effective, modular and robust solutions for remote, non-intrusive monitoring of ID corrosion and erosion using the latest solid-state electronics, wireless or wired technologies, cloud based software and innovative ultrasonic transducer designs.

The versatility and ease of use is amazing!

  • Calculating corrosion rates
  • Monitoring known “low spots” or “areas of interest”
  • Using a non-invasive solution in lieu of or in conjunction with invasive methods (coupons, ER probes, etc.)
  • Reducing recurring access costs
  • Continuously accessing additional & improved data on asset condition

Installed sensors are ideally suited for remotely monitoring areas of active metal loss due to corrosion/erosion.
smartPIMS components, software, and systems are highly configurable, from just a few sensors to thousands of TMLs per network. Leveraging the low-cost and ubiquitous aspects of the Internet and wireless networks (including cellular) systems can be easily and cost-effectively installed and maintained at most industrial facilities.

smartPIMS Datalogger
  • Operates on battery (2 years at 1 reading/day).
  • Stores 3000 readings (each w/ time, date, waveform).
  • Connects via Modbus (RS-485) to tablet/PC.
  • Offloads data to dataPIMS software which can export to an XML/CSV file and/or upload to web PIMS via Internet connection.
  • Offers 16 single- or 8 dual-element UT probe channels.
  • Transducers maintain 1 mil (0.001” / 0.025mm) resolution and 0.040” (1mm) minimum wall thickness.
  • Transducers withstand -22°F (-30°C ) to 932°F (500°C).
  • Sensors install buried or above-ground, temporarily or permanently.

smartPIMS Modbus
  • Hard wired – (for areas without cellular or wireless infrastructure)
  • No battery on board
  • Collected data manually via tablet/PC
  • ‘Daisy-chain’ up to 32 DSIs on 1000’ RS-485 cable
  • Choose between 16 single element or 8 dual element sensors per DSI
  • Temporary or permanently affix the sensors

smartPIMS Cellular

  • Wireless
  • Ideal for testing a few to a moderate number of points
  • Simple to install
  • Takes readings instantly upon setup at defined intervals (1 per day/week/month/etc.)
  • Cellular IoT connection – Little to no IT support needed
  • Cloud-based back end for analysis and trending & spreadsheet data exporting capability
  • Low cost, highly configurable
  • Battery life: 5-7 years

smartPIMS Transducers

The smartPIMS® product line has 2 different ultrasonic transducer types: dual-element and delay-line.

Each “sensor” type should be selected based largely on temperature range, number of point to be monitored and the severity of the expected metal loss.



AWS-hosted cloud-based data management system for ultrasonic thickness measurements from installed UT sensors.

  • Access with most any web browser
  • View, report, analyze the data
  • Remote collaboration with multiuser access
  • Data can be hosted by Sensor Networks or by user
  • Short-term and long-term corrosion rates
  • Set alarms for assets
  • Identify by GPS sensor coordinates
  • A-scan viewing

Why Ultrasound?

  • Safe; Non-invasive to the asset’s pressure boundary
  • Absolute in its ability to directly measure remaining wall thickness (not a proxy for wall loss) at the sensors point of contact
  • Extremely accurate to 0.001” (0.025 mm), with the ability to measure down to 0.040” (1 mm) in carbon steel, especially for fixed-location probes
  • Rugged, reliable and portable
  • Low recurring maintenance costs
  • Versatile and cost-effective

Typical Applications

Power Gen

  • Flow Accelerated Corrosion (FAC)
  • Microbiological corrosion
  • High pressure steam lines
  • High point vent
  • Baseline of new assets

Oil & Gas


  • Replacement of invasive technologies – ER probes/coupons
  • Process control for chemical inhibitor optimization
  • High Temp Naphthenic acid monitoring


  • Post repair or replacement baseline of new infrastructure
  • Monitoring of known/existing localized corrosion events
  • Used in lieu of pigging/ILI for river/road crossings or 49 CRF 192 & 195


  • Wellhead monitoring for initial start-up & injection/storage
  • High pressure pumping instrumentation health monitoring
  • Sand erosion/wash-out for offshore platforms & FPSOs

Other Applications

  • Flow-Accelerated Corrosion (FAC)
  • Microbiologically-Induced Corrosion (MIC)
  • High-pressure steam lines
  • High point vent
  • Baseline of new assets


Metal Samples Company

P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268

: (256) 358-4202
Fax: (256) 358-4515

E-mail: msc@alspi.com

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Metal Samples Company is a division of Alabama Specialty Products, Inc. - Copyright © 2024