The reliable detection of strains and temperatures in the e-mobility environment poses a major challenge - the very small amplitudes of the measurement signals are many orders of magnitude below those of the system voltages of several hundred volts used. And the wireless transmission of these measured variables is also massively hampered by the enormous electromagnetic interference generated by respective components of electric vehicles themselves.

In this episode of CSM Xplained, we present exciting solutions for the reliable and precise measurement of strain gages and temperatures. Find out more about high-voltage safe, wired and also innovative wireless solutions for strain gages and temperatures - this time in interview format with telemetry expert Gerhard Spitz from AXON Systems.

Accelerations must also be measured safely and precisely in high-voltage environments. For example, HV batteries are used as load-bearing elements in the vehicle frame. Accordingly, extensive investigations of fatigue strength are required on high-voltage components, but also within the HV environment.

• Where do accelerations need to be investigated within an electric vehicle?
• How can accelerations be measured HV safe for system and user?
• What challenges arise in acceleration measurement and how can they be solved?

Testing of durability poses great challenges for the measurement equipment to be used, especially in the high-voltage environment. For example, the so-called "swelling" is to be investigated on HV battery cells. For this purpose, strain gauges are primarily used whose output signals, some of which are very small, must be recorded precisely, reliably and safely at a high voltage potential.

• Which critical points in the electric vehicle typically have to be examined for their durability?
• How can the signals of bridge-based sensors such as strain gauges be acquired in a HV-safe manner?
• What challenges arise in particular with strain gauge measurements at HV potential and how can they be solved?