How accurate is the measurement?

The measurement system measures the magnetic flux as a primary value with the resolution of 1 µWb that makes it possible to obtainthe extended combined uncertainty of the measurement up to 1% of the applied mechanical tension. The uncertainty of the measurement is influenced by magnetoelastic characteristics of the measured material, filling sensor coefficient, magnetic environment of the sensors, movement of the measured element in the sensor and temperature. In case of the calibration of the sensor in situ, the measurement is tied to the calibrated tensioning equipment. This calibration simultaneously eliminates the influence of the characters of the material and of the magnetic environment. The influence of the filling of the sensor is eliminated by the usage of an optimal dimension of the sensor regarding the diameter of the measured element. Both the axial and the radial shift of the material in the sensor are usually eliminated during the installation of the sensor by a fixing element or by inducing of an initial tension at the beginning of tensioning process. The temperature dependence is automatically corrected by the measuring software. In case of the laboratory calibration, the uncertainty of the measurement increases up to 5%. The uncertainty of the measurement by the split sensors which are additionally winded onto the measured construction is about 10%.

What is the range of the measurement?

The measurement system measures the magnetic flux as the primary value in the range of 1 mWb which makes it possible to cover the range of the applied mechanical tension from 0 kN up to the limit of elasticity of the material. The optimal setting for concrete configuration is provided by a special configuration file assigned to the sensor. It is impossible to overload the sensor or to damage it by shock pulses.

Is it possible to measure the already existing constructions?

The measurement system is applicable also to the measurement of the tension in the existing steel or prefabricated constructions. This application requires the installation of the split sensor while using a special winding equipment. The accuracy of the measurement is significantly lower than with the normal sensors.

Who can help me?

You can get more detailed information about this measurement system on the address:
INSET s.r.o., Division Ostrava, Rudná 21, 700 30 Ostrava, dynamag@inset.com, +420596123565.
Head of Dynamag Department: RNDr. Pavel Obluk, MBA: obluk.pavel@inset.com, +420602373566.

You can try to find the solution for your problem in the FAQs. You can also specify your requirements in the demand form and we will prepare the best solution for your application.

The DYNAMAG® measurement system was also presented at a number of the professional forums.

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The demand form

* required items
The application:
The measured element:
Diameter of measured the element [mm]:

It is available sample of material (min. 1 m):
Yes No
Supposed range forces:

Number of sensors:

Distance from sensors measuring station (length of connecting cable):

The measurement requirements:
It is at the measuring site available source of electricity:
Yes No
It is at the measuring site available internet connection:
Yes No

Specific requirements:

The contact person