Automobile

ASC – Innovative test and measurement solutions for the vehicle industry.

For many years now, international key players in the automotive industry have trusted us as customers and partners. Moreover, it is thanks to the stringent requirements they impose that our company and product range have grown. That is why the demanding automotive test and measuring engineers from the automotive sector look no further than our unique and varied range of accelerometers to meet any of the diverse challenges they encounter. We offer them high quality sensor solutions, including the following applications:

Operational stability tests

ASC capacitive accelerometers excel in withstanding mechanical stresses in particular, when exposed to the harshest operating conditions. The triaxial sensor ASC 5521-MF, for example, is a popular choice of accelerometer for strength tests due to its wide frequency response of 0 hertz to 7 kHz as well as excellent shock resistance impact strength up to 6,000 g. Weighing in at just 3 grams and with an exceptionally compact cube form, the uniaxial ASC 4221 sensor is ideal for installing in even the most confined of spaces.

Test bench applications

Such applications require accelerometers capable of meeting long-term and ongoing requirements. Here, both the capacitive MF series from ASC and the capacitive Low-Noise series (LN) are the best options due to their temperature stability, durability and reliability. The ASC MF series is suited to applications with an operating temperature ranging from -40°C to 125°C. The ASC Low-Noise series features ultra-low broadband noise of 50 µg/√Hz with a measuring range of 2 g.

Modal analyses

Modal analyses in the automotive sector require lightweight and high-frequency accelerometers, which minimize the mass load exerted on test structures. The triaxial IEPE-accelerometer ASC P203A12 (with TEDS) is frequently used in modal tests, since it weighs only 6 grams and has a high dynamic range. With an excellent price-performance ratio, the ASC P203A12 is well-placed to minimize the costs per channel as far as possible.

Crash tests

The MEMS piezoresistive accelerometers from ASC are compatible with the SAE-J211 specification as well as being some of the most cost-effective uniaxial crash sensors around.

ASC 61C1 and ASC 62C1 are used in side and frontal impact tests among others. The triaxial ASC 76C1 crash sensor stands out in particular, thanks to its lightweight and compact construction. All ASC crash sensors can be customised, for example with a Dallas ID as well as EQX data. And the cleverest bit: When required, all axles of the triaxial ASC crash sensors can be individually repaired.

Driving dynamics tests

The uses for MEMS capacitive accelerometers with a DC response from ASC include driving dynamic applications like lane-change tests, braking tests and driving manoeuvre tests. ASC sensors are durable, low-noise and exceptionally accurate as well as having compact dimensions.

ASC sensors with protection classes IP67 and IP68 can handle even the harshest natural elements such as cold, heat, humidity and dust in their stride. Both the ASC 4411LN and ASC 5525MF models as well as the hermetically sealed OS-115LN sensor are ideal in this context.

When measuring vehicle acceleration and angular speeds, as required for road vehicle studies, the ASC IMU 7.x.y is a preferred choice as a 6-DOF inertial sensor. Its low weight and ultra-compact structure make the ASC IMU 7.x.y an ideal choice for R&D braking and vehicle tests. With the IMU 7.x.y, ASC offers a unique modular system, allowing a customised configuration to meet an individual requirement. When it comes to measuring acceleration, there is a choice between the ASC LN series and ASC MF series with a measuring range of ± 2g to ± 50g as well as a turning range of ± 75 °/s to ± 900 °/s.

The gyroscopes (angular rate sensors) ASC 271 and ASC 273 are installed in dynamic gear – and roller shutter measurements, position and motion measurements as well as slippage tests: applications requiring outstanding bias stability and low g sensitivity.

Driving comfort measurement

Measuring driving comfort without ASC is almost inconceivable. Here, our accelerometers help you identify unwanted impacts and vibrations, which may impede subsequent driveability and boost the level of passenger comfort in the process. Vibrations of up to 12 Hz affect all human organs. Low-frequency cyclical movements within the range 4 to 6 Hz can cause the body to resonate. Such unwanted disruptions may be attributable to tyres running on uneven road, for example. Human reactions to vibrations affecting the whole body can be simulated and assessed using our sensor and taking a frequency range of 0.5 to 80 Hz into consideration. The triaxial ASC 5511LN sensor with its low frequency and measurement range and high sensitivity is ideally configured for such applications.

This is where you will find appropriate sensors for the vehicle sector: