For effective vehicle NVH testing: Kistler offers accelerometers, customized force measurement as well as data acquisition and data analysis solutions.

Vehicle NVH testing solutions

Ready for future and electric vehicle testing

Noise Vibration and Harshness (NVH) covers all aspects related to the acoustic and vibrational performance of the vehicle and is becoming even more relevant for electric vehicle testing. Good NVH performance of a powertrain or a vehicle translates into durable, reliable and more efficient products, but also driving quality, comfort, and ultimately driving pleasure.

Accurate and reliable NVH testing – next to you and ready for the challenges of electric vehicle testing

Kistler stands by your side to meet the challenges of modern and electric vehicle testing with a wide range of measurement solutions for NVH testing, ensuring maximum accuracy, reliability and flexibility. From a wide range of accelerometers to customizable force sensors over transducers for tire NVH. Everything from a single source.

Motor and electric powertrain NVH testing

Accelerometers for automotive NVH analysis from Kistler cover nearly all cases, including electrical engines.

Vibration of motors and powertrains for electric vehicle testing is characterized by high frequency content and the possible presence of current ground loops that can affect the accuracy of its measurement. Triaxial sensors such as the 8763B and 8764B offer an exceptionally broad frequency range and various ground isolation possibilities – all in a wide variety of g ranges, accommodating several NVH testing scenarios. Additionally, accelerometer 8763B ensures flexible mounting and accurate calibration over all three axis, thanks to the three threaded holes - one on each direction. If you need 360° freedom for cable orientation and maximal connection stiffness via screw mounting, accelerometer 8764B fits your requirements, as it features a through hole together with integral ground isolation to minimize current ground loops.
When a single axis measurement is preferred, sensors 8704B and 8774B offer the right performance with a variety of options to optimize your NVH testing on motors and powertrains of electric vehicles.

Engine and powertrain NVH testing

Accurate vibration measurement on internal combustion engines and powertrains cannot compromise on excellent thermal performance, ease of mounting and resistance to harsh environments. This is why powertrain NVH engineers worldwide choose the triaxial IEPE accelerometers 8768A, 8766A and 8765A, which measure vibrations with accuracy nearly unaffected by temperature changes thanks to our proprietary PiezoStar crystal technology. Additionally, accelerometers 8768A and 8766A ensures flexible mounting and accurate calibration over all three axes, thanks to the three threaded holes – one on each direction. If you need 360° freedom for cable orientation and maximal connection stiffness via screw mounting, accelerometer 8765A fits your requirements, as it features a through hole together with an integral ground isolation to minimize current ground loops.
When it comes to single axis measurements of engine and powertrain vibration, 8714B and 8715A deliver high termal performance. At the same time, they keep small dimensions, low weight and minimize ground loops thanks to the integral isolating pads.

Vehicle dynamics, durability and tire NVH testing

RoaDyn wheel force transducers from Kistler support vehicle development in the area of vehicle durability measurement.

Vehicle dynamics and durability testing often require measuring low frequencies down to 0 Hz, which is why customers worldwide measure with our highly accurate MEMS capacitive accelerometers 8316A and 8396A. These accelerometers can be configured to adapt any data acquisition chain and test environment, as they offer a wide choice of electrical output possibilities, including temperature and differential output, as well as various types of integral cables besides the standard connector.
For electric vehicle testing, the required operative frequency range might be broader. Triaxial accelerometer 8763B provides high accuracy and mounting flexibility, thanks to the three threaded holes, one on each direction.
All these products well complement the Kistler vehicle dynamics, durability and tire testing product line.

Structural vibration testing and modal analysis

For structural vibration measurement and modal analysis applications, triaxial sensors 8763B, 8788A and 8762A also offer a broad choice of g ranges and accurate vibration measurement, thanks to the low and ultra low noise levels. All ensure flexible mounting and accurate calibration over all three axes, thanks to the three threaded holes – one on each direction.
Our product line for structural vibration and modal analysis is also complemented by an IEPE impluse hammer, impedance heads for shaker testing, cables and force sensors.

Transfer Path Analysis (TPA)

The 8766A accelerometer from Kistler for NVH measurements on powertrains features extremely high thermal stability.

Customized piezoelectric force measurement solutions from Kistler are ideal for conventional and future powertrains.

Transfer Path Analysis (TPA) is increasingly being adopted in automotive development processes and electric vehicle testing for optimizing the NVH performance of the vehicle and its components. When it comes to defining the testing setup, Transfer Path Analysis requires the choice amongst various types of sensors, each delivering specific advantages. To maximize the measurement accuracy and setup efficiency for Transfer Path Analysis, Kistler offers a broad portfolio of products for structural measurements.

Customized force measurement for vehicle NVH testing

Dynamic force measurement is very common in automotive NVH and increasing for electric vehicle testing. This is often used for noise and vibration control, maximum load measurement, mounting point design, blocked force measurement for Transfer Path Analysis (TPA) and much more. Nevertheless, all these applications impose specific geometrical constraints and unique operating load conditions, which often cannot be fulfilled by standard sensors. They are unique applications – so they demand unique solutions.

Backed by more than 60 years of experience in piezoelectric sensor technology, we can provide complete solutions that can precisely measure up to six components (three forces and three torques) to match customized geometrical and load requirements. Based on piezoelectric measurement technology, customized solutions from Kistler are ideally suited to meet current and future challenges presented by NVH engineering, reaching high frequencies and offering a very broad measuring range. As our customer, you can turn to one single source for everything you need: from design and engineering through to production, calibration commissioning and service.