Service Icon Metrological examination

Metrological tests

Reliable shock testing to determine mechanical strength

We carry out individual examinations on behalf of our customers and rent or sell suitable equipment and software.

On the basis of many current requests, SPEKTRA has developed special know-how and equipment for the contract measurement of sensors and other small and large components in the field of vibration technology and acoustics.

Rely on SPEKTRA and our accredited services for any sensor. Depending on your objectives, we carry out the appropriate measurement or test at our facility.

Our services at a glance

  • Contract measurements on behalf of customers
  • Metrological tests
  • Sensor characterization
  • Qualification of the sensor

If necessary, we invite the customer to our laboratory for a day.
We also rent or sell suitable equipment and software.

SPEKTRA On site calibration

We measure on behalf of our customers

During contract measurement, we test a sensor and carry out a detailed calibration. The calibration result is used for order preparation for future calibration of sensors of a given type.

There are a variety of parameters that can be tested to evaluate the performance of a sensor. Devices must be precisely examined in the development phase as well as during manufacture and commissioning. They must also be calibrated before delivery and then regularly during operation.

What can SPEKTRA measure?

Behavior

  • Examination of the base strain
  • Resonance behavior of wires: Resonance search in the defined frequency range
  • Resonance behavior of a chip on a chip card
  • Static measurement in the earth’s gravitational field to test sensor noise
  • Endurance test

Sensitivity

Determination of the disturbance transfer behavior to certain disturbance variables, such as:

  • Magnetic field
  • Temperature
  • Transverse sensitivity
  • Vibration
  • Sound
  • Shock resistance

Influence

  • Investigation of the cable influence on the measuring result
  • Coupling of the DUTs with different methods (bonding)
  • Influence of bonding wires on mechanical strength

We characterize your sensors

A sensor characterization is the determination of the disturbance transfer behavior of a DUT at certain disturbance variables. In sensor characterization, electrical measurements are performed on a sensor. This involves recording various sensor readings or the behavior of a sensor in response to specified stimuli.

In the case of sensors in the development phase or pre-series samples, evaluations of the scatter of measured values and the accuracies can be created from this for the sensor data sheet.

SPEKTRA_Metrological-tests_2

Which sensors can SPEKTRA characterize?

Metrological investigation MEMS
In-house climate chamber for environmental simulations in Dresden.

We carry out metrological tests

There is no calibration protocol as such within the scope of the metrological tests. Measurements are carried out – also on the basis of existing data – to record the behavior and sensitivity of the sensor.

What this is examining, however, is not the sensor itself, but its entire “environment”. This method investigates how different conditions or influences such as temperature differences, deformation or mounting direction affect the measuring results.

«Unique services for special orders.
Which test fits your sensor? Contact us!»

SPEKTRA Sales Team

References

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Case studies

«Which sensor is best for my crash tests?»

We determine the frequency-dependent sensor sensitivity, the transverse sensitivity, the magnetic sensitivity, the damping behavior, the reliability under shock load, etc.

«Our customer complains that my assembly sometimes shows malfunctions when subjected to vibration; but a normal vibration test shows no problems!»

We can subject DUTs very specifically to sinusoidal oscillations, shocks and recorded acceleration profiles in one and three dimensions in a very wide frequency and amplitude range and thus help to analyze the problem.

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Primary calibration of sensors and reference devices with highest level of traceability.

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First and only provider to offer on-site calibrations for vibration test systems at DAkkS level.

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CS calibration systems

All components of a calibration system, developed in-house: exciter, controller and software.

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