We perform direct measurements of loads, deformations, stress, strains and vibrations, for general purposes and specialised projects.

A direct measurement approach combined with engineering tools provide knowledge on the condition of structures and machinery. It is an easy way to verify loads, stress, strains, structural strength/fatigue or vibrational response.

High class direct measurements for low cost

FORCE Technology offer direct measurements in various forms. Our primary tool for direct measurements is strain gauges These small measuring devices have a clear advantage in both price and measuring precision. Strain gauge measurements can be carried out on various materials such as steel, concreate, composite materials, etc.

We offer the service of long-time structural monitoring (several years) or shorter measurements with a frequency up to 50 kHz (0.02 ms). Measuring precision is 0.5-1 μstrain (0.2 MPa in steel) within a spectrum of 0 to 10.000 μstrain (2000 MPa in steel). This is formula one worthy measuring technology, with a price tag for general purposes.

Typical applications would be verification of loads (an alternative to load cell technology), design optimisation, design strength and fatigue life, weld fatigue analysis, failure analysis, Engineering Critical Assessment (ECA/fitness for purpose), FE model calibration, verification and integrity analysis.

What is a strain gauge, and how to use it?

The most common type of strain gauge consists of a resistance wire which is fixed to the structure. When the structure is loaded, the strain gauge resistance changes, and this change shows you the structure’s strain and stress. Strain gauges often comes in physical sizes from 1 mm to 10 mm in length.

The common strain gauge is glued to the surface of interest with super glue. Data is collected using a data logger, and subsequently stored on a PC. Based on the measured strains, you may calculate the stress, loads, deformations or vibrational response

What are the typical applications for strain gauges?

As mentioned above strain gauges can be installed on various materials, structures and machinery. The typical applications are:

We also offer remote monitoring on e.g. offshore wind turbines. This way you can monitor the actual strains and stresses in real time or download saved data for analysis on a regular basis. The remote monitoring tool helps ensure structural integrity and prevents structural failure. 

Please contact us, if you have any measuring applications and wish to know more about how you can benefit from a direct measurement.

Selection of critical areas on structures:

For a number of years we have provided advice on selection of the critical areas on structures, where strain gauge measuring may be interesting.

Fitting of strain gauges:

There are many different types of strain gauges depending on: 

  • What you want to measure
  • The material you measure on
  • The environment you measure in. 

We can help you choose the correct strain gauge, with fitting of it and possible protection of the strain gauge that suits your needs.

Setting up of data collection system:

The data logging system typically consists of a data logger and a computer that collects the data.  

We can put a complete data logging system at your disposal, which you can either rent or buy as you please.

Analysis of measuring results:

We can assess the impact of the measured stress on strength and fatigue respectively, depending on whether it is a statically or a dynamically loaded structure.