Benefits of Using Strain Gauge Load Cells in Civil Engineering Projects

Strain gauge load cells provide data on force distribution, load shifts and structural performance. For major civil engineering projects in Western Australia, they’re an essential element of an accurate and compliant monitoring system.

Monitel tailors load cell monitoring systems to each and every project, enabling site managers and engineers to make informed, confident decisions.

This article explores 5 core benefits of strain gauge load cell monitoring and how a tailored system from Monitel ensures they deliver maximum value to your project. For more information, get in touch with one of our consultants.

1. Precise Force Measurement

Large structures are subject to changing load conditions. Strain gauge load cells offer the chance to monitor those variations at frequent intervals and with great accuracy. By monitoring props, anchors and struts, engineers can assess whether loads remain within design parameters and make an informed, evidence supported response should shifts occur.

2. Simple, Low Disruption Installation

Strain gauge load cells are a compact sensor and can be integrated into most structures without delaying works. Our installation experience includes within concrete pours, bolted onto steel members and incorporated into jacking systems.

Our consultants work closely with site managers to time installations to suit staging requirements.

3. Remote Monitoring Capabilities

Monitel sensors are compatible with most typically data loggers and telemetry systems to provide real time access to force measurements. They are also capable of remote monitoring, meaning you can access strain gauge load cell data whether you are based off or on site. This is particularly valuable in high risk or space constrained projects.

Our data dashboards also have alert functions, reducing the need for manual checks and ensuring site managers stay up to date and informed.

4. Long Term Durability and Stability

Long term monitoring is only successful when your sensors remain accurate and reliable over the whole monitoring period. Strain gauge load cells are renowned for their long term stability and built in protections against moisture and corrosion.

Monitel consultants have a deep understanding of Western Australian conditions and will select a sensor with proven success on sites like yours. All cabling and protective enclosures are also selected to suit project conditions.

5. Custom System Design for Complex Structures

Large civil projects are rarely simple. Engineers often have to work around curved tunnel segments, dynamic soil conditions and other factors. Strain gauge load cells can be customised in their form and data output to suit your monitoring needs.

Rather than relying on an off the shelf system, Monitel customises signal amplification, multiplexers and sensor selection to match your projects load type and regulatory requirements.

How We Use Strain Gauge Load Cells on Civil Projects

Monitel has helped clients across Western Australia secure safety and compliance with strain gauge load cells. Our deployment history includes:

  • Bridge Bearing Monitoring: Measuring live and dead loads across supports to detect differential movement or overload

  • Retaining Wall Projects: Monitoring soil structure interaction through loads on ground anchors or structural props

  • Tunnel Lining Support: Evaluating stress distribution across tunnel segments or linings under live load conditions

  • Temporary Works: Tracking load changes on struts, jacks and formwork in shoring systems to manage risk during staging

  • Deep Excavations: Observing axial force in multi level bracing to ensure ground movement remains within design tolerance

Why Partner With Monitel?

Our consultants don’t just supply and install load cells, they designed tailored monitoring systems that integrate seamlessly into your site’s structures and compliance frameworks. Monitel has supported major projects across WA and understands the environmental realities of our state.

We offer:

  • Tailored system design using strain gauge, vibrating wire or hydraulic load cell technologies, as well as other sensors

  • Product agnostic sensor selection – ensuring your system works for you

  • Data integration with most standard loggers supported by cloud dashboards and threshold alerts

  • Maintenance and remote support

Enquire About Strain Gauge Load Cells and Other Sensors

Whether you’re managing temporary works in a tight residential area or planning a new bridge, the Monitel team will help you monitor what matters with market leading instrumentation.

For more information about the price, availability and application of strain gauge load cells, contact our team today.

Interpreting Strain Gauge Load Cell Data

Strain gauge load cells are the perfect tool for applications where accurate, real time data is essential. But capturing that data is only one part of the job.

Monitel is proud to provide ongoing monitoring and maintenance assistance for strain gauge load cell systems we design. Our team will help you establish baselines, understand trends and troubleshoot possible failures.

This article explains how strain gauge load cell data works, how Monitel consultants can help you interpret it and how we ensure your readings stay accurate over time. For more information, contact our team.

How Strain Gauge Data Is Captured

This model of load cell has a strain gauge at its core. As the monitored structure deforms under the applied load, the gauge stretches or compresses to change its electrical resistance. That change is measured and then converted into a voltage signal, which can then be logged as a force value.

To ensure data accuracy, our consultants will choose the sensor best suited to your site and factor in conditions such as temperature as required.

Raw vs Processed Data

Raw data from a strain gauge may initially appear as:

  • Voltage (mV/V)

  • Strain (με or microstrain)

  • Resistance (Ω)

This raw data is typically converted by Monitel’s systems into meaningful engineering units (e.g., kN or t) using calibration constants and baseline readings. This conversion allows engineers to monitor absolute loads or changes over time without needing to interpret electrical signals.

Step 1: Establish Baselines and Thresholds

Before you form any meaningful insights based on strain gauge load cell data, it’s important to establish a baseline reading. Monitel does this immediately after installation under no or known load. Engineers and managers will reference this reading when interpreting future data.

From there, you can establish threshold values (and configure alert notifications) for operating ranges and critical limits.

Step 2: Understand Patterns and What They Indicate

Once your system is installed and calibrated, you’ll gain access to a trove of force data. Understanding patterns and changes in that data is critical to making informed decisions.

Here are some common situations on WA sites:

  • A gradual increase in load could indicate ground movement, material buildup or increased structural demand

  • Equipment failures, blasting and unexpected impacts could be the cause of a sudden load spike

  • A decreasing load may suggest loosening connections or the formation of a subsurface void

  • If your sensor is detecting no change when one is expected, it could be due to failed equipment, poor installation or signal loss

Proper application of strain gauge load cell data isn’t just about the number. Understanding how your data fits into site trends is key.

Step 3: Troubleshooting Common Issues

If your data appears flat or erratic, here are some common causes:

Symptom Possible Cause
Flatline data Sensor failure, broken wire or logger issue
Noisy signal Electrical interference, poor bonding or moisture intrusion
Unexpected values Calibration error, shifting baseline or structural damage
Drift over time Temperature changes, long-term strain creep or gauge fatigue

As strain gauge load cells are different to other sensors, it’s important to contact an experienced consultant for troubleshooting and repairs. Monitel offers ongoing maintenance support with our monitoring systems, on and off site.

Why WA Operators Choose Monitel

Simplified Data Interpretation

Our systems are designed to streamline decision making with:

  • User friendly data dashboards

  • Automated alerts

  • Calibrated reporting

  • Remote diagnostics and performance verification

Monitel consultants remove the ambiguity to keep you focused on the next step for your site.

Compliance Support

We understand that accurate load cell data isn’t just an asset – it’s a necessity for safety and compliance. Monitel consultants ensure data is timestamped and traceable so that you are meeting general and site specific obligations. Strain gauge systems can help demonstrate:

  • Conformity with design tolerances

  • Detection of stress or failure risk

  • Audit ready documentation for regulators and insurers

Contact Monitel for Assistance Interpreting Data From Strain Gauge Load Cells and Other Sensors

With the right set up and support, strain gauge load cell data isn’t complicated. Monitel will help you create a powerful system that safeguards your project, people and infrastructure.

For more information about price, availability and reporting assistance for strain gauge load cells, contact Monitel today.

Hydraulic vs Strain Gauge Load Cells: Which Is Best for Your Site?

Selecting the right type of load cell boils down to 4 key factors:

  • The site’s environment

  • Performance requirements for the project

  • Your data handling preferences

  • The length of the monitoring period

Both strain gauge and hydraulic load cells offer reliable and accurate measurements, but they fit differently into the above criteria. This comparison unpacks the differences in these two technologies to assist you in making an informed monitoring decision.

For more information or to enquire about sensor installation, contact Monitel today.

What Are Strain Gauge Load Cells?

Strain gauge load cells measure force with electrical resistance. As a load is applied to the cell, an internal steel or aluminium element will deform, changing the resistance in the attached strain gauge(s). Wheatstone bridge circuits convert these changes into electrical signals that are representative of the applied load.

Strain gauge load cells are a sensor known for their high sensitivity, compact design and compatibility with most typical data logging systems.

What Are Hydraulic Load Cells?

Hydraulic load cells have a different working mechanism, using fluid pressure to measure the force of an applied load. An internal diaphragm compresses, moving fluid into a pressure transducer. The resulting pressure change corresponds to the force applied the load. Because there are no electrical components at the sensing point, hydraulic load cells are ideal for:

  • Remote environments

  • Sites in harsh or dangerous climates

  • Long term deployments on powerless sites

  • Areas with significant EMI

How They’re Different

Installation

Strain Gauge:

  • Requires wiring, connectors and robust shielding

  • Must be carefully installed to avoid moisture damage

  • The precision required can make installation a lengthy process

Hydraulic:

  • No electrical components at the sensing point

  • Simple installation, often quicker on site

  • Tubing to the transducer must be protected

Our thoughts: Whilst strain gauge systems might offer greater flexibility and precision, hydraulic solutions are faster and cheaper to install on remote or inaccessible sites.

Measurement Precision

Strain Gauge:

  • Extremely sensitive with high resolution

  • Well suited to dynamic measurements and short term tests

  • When properly installed, can be accurate down to millivolt range

Hydraulic:

  • Incredibly stable under static conditions

  • Can experience minor hysteresis depending on fluid type

  • Precision can vary in dynamic conditions

Our thoughts: For a fast, high resolution response, a strain gauge load cell is the best choice.

Electrical Interference and Harsh Environments

Strain Gauge:

  • Can be vulnerable to EMI, especially near manufacturing areas

  • Requires shielding and careful grounding to negate excessive interference

Hydraulic:

  • Immune to EMI as it utilises a mechanical sensing mechanism

  • Ideal for high voltage zones or electrically noisy environments

Our thoughts: If your site is in a harsh or electrically active area, a hydraulic load cell is the safest choice.

Long-Term Stability and Maintenance

Strain Gauge:

  • Typically stable but can be affected by corrosion, cable damage and signal drift as the monitoring period progresses

  • Requires regular inspection of connectors and seals to ensure accuracy

Hydraulic:

  • Very stable in static load measurement

  • Fewer electronic parts reduce the risk of long term failure

  • Must be regularly monitored for fluid leaks or temperature effects, which can impact accuracy

Our thoughts: If you are designing a long term monitoring system, a hydraulic sensor’s accuracy and minimal maintenance requirements make it a suitable choice.

A Quick Guide for Common WA Scenarios

Our consultants have a deep knowledge of Western Australia’s regulatory and environmental conditions and use that understanding to create effective, efficient monitoring solutions.

Tailoring Systems Based on Site Requirements

When selecting a load cell type, we consider:

  • Data Frequency – Strain gauges are best when forces are changing rapidly

  • Environment – If the site is remote or EMI prone, a hydraulic cell is best

  • Power Access – No power? Hydraulic is your only option

  • Longevity vs Agility – Strain gauges might be more agile, but they’ll need more maintenance over time

Monitel will assess site conditions to determine which technology is most suitable and advise you of an appropriate monitoring plan.

Product Agnostic Approach

At Monitel, we pride ourselves on taking a product and brand agnostic approach. We are not tied to any one supplier and instead work with a range of load cell models and attachments to create the most compatible and lasting solution for each site.

Our focus is on accurate data and practical installation, not margins and markups. You’ll never be sold equipment you don’t need and will always be able to upgrade or scale in time.

Get in Touch and Reap the Rewards of a Tailored Monitoring System

If you’re unsure as to whether a hydraulic, strain gauge or other load cell sensor best suits your project, Monitel is here to help.

For more information about the application and price of a hydraulic or strain gauge load cell, contact the Monitel office.

How a Strain Gauge Based Load Cell Measures Force

Strain gauge load cells are critical for accurate force and load measurement in both geotechnical and structural applications. They deliver precise and repeatable data across multiple sectors and applications:

  • Mining

  • Infrastructure

  • Bridge structures

  • Verifying bearing loads

  • Other uses

In this article, we explain how strain gauge load cells work, how they provide such accurate data and how Monitel consultants use their local knowledge to ensure maximum sensor performance across Western Australia. For more information or to discuss your site, get in touch.

What Is a Strain Gauge Load Cell?

A strain gauge load cell is a sensor that converts mechanical force into an electrical signal using a strain sensitive material that deforms under an applied load. Attached to that material is one or more gauges that change resistance as they are stretched or compressed. That change is representative of deformation, which is proportional to the applied load.

The electrical signal is measurable, can be logged in most standard data systems and is used to interpret how much force is being applied to a structure.

The Wheatstone Bridge

A Wheatstone bridge circuit is what converts resistance changes into a readable output. It improves sensor sensitivity and can detect millivolt range signal variations. Monitel typically employs one of two setups:

  • Full bridge configurations using four strain gauges, increasing output sensitivity and improving temperature compensation.

  • Half or quarter bridge arrangements in simpler or constrained installations

Our consultants select a bridge configuration that aligns with the measurement range, environmental constraints and your monitoring goals.

Factors That Influence Data Accuracy

The accuracy of a strain gauge load cell’s performance is dictated by a host of internal and external factors. These include:

Material and Geometry of the Sensing Element

The mechanical body of the cell is designed to deform within a predictable and, importantly, uniform way. Most units are made from either steel or aluminium and selecting the right material is critical in resisting corrosion, fatigue and creep over time. Monitel consultants can assist you with sensor selection.

Strain Gauge Placement

Gauges are placed at points of maximum strain on the cell body. Poor attachment will limit the accuracy of your monitoring, whether it be through misalignment or uneven bonding. Our team works closely with suppliers to ensure gauge placement is tailored to each installation.

Calibration

A load cell must be calibrated against known forces to record linear data. Monitel ensures the calibration process accounts for manufacturing variances and geotechnical realities.

Temperature Compensation

Strain gauges are prone to thermal expansion, which, left unaddressed, can alter readings. Most units have an inbuilt temperature compensation gauge but, if not, our consultants will pair a suitable tool that factors changes into your data interpretation.

Signal Amplification and Shielding

Signal condition is essential to accurate load cell data. Monitel installs amplifiers close to the unit to minimise noise over long cable runs and properly shields wiring from electrical interference.

How Monitel Maximises Accuracy in the Field

Our consultants have vast experience completing precision monitoring on some of Western Australia’s harshest, most remote sites. To ensure accuracy in extreme temperatures and dynamic environments, we use:

  • Rugged Housing: Sensors are corrosion resistant, have ingress protection and are maximised for long term stability

  • Pre-Installation Testing: All units are tested prior to deployment to confirm calibration and signal integrity

  • Integrated Data Acquisition: Sensors are connected to your telemetry and logging systems for remote access and automated recording

The Monitel approach is designed to ensure that data is accurate, consistent and easily interpreted by site managers.

Our Experience

There are countless sites across Western Australia suited to the application of a strain gauge load cell. Monitel’s deployment experience includes:

  • Measuring load transfer in anchored retaining walls

  • Long term monitoring of bearing load distribution in bridges

  • Verifying pre-loads and redistribution during excavation and construction

  • Measuring loads in cable bolts and rings in shaft infrastructure

These sensors are also valuable in short term setups.

Enquire Today and Arrange Strain Gauge Load Cell Monitoring with Monitel

Strain gauge load cells are one of the most efficient and reliable ways of measuring force in structural and geotechnical systems. But, critical to their accuracy is proper design, installation, calibration and maintenance.

Monitel combines market leading technology with system design skills backed by years of local experience. Our consultants have aided sites across Western Australia in achieving reliable, precise data that supports long term compliance and confidence.

For more information on the availability and price of strain gauge load cells and other sensors, contact our team.