Synchronous Versatile Input Module (SVIM)

The Synchronous Versatile Input Module (SVIM) is a compact expander that works in conjunction with an ACL or ADL3 Data Logger to facilitate the synchronized logging of high-speed, high-resolution inputs.

The SVIM acquires data of the highest integrity for use in advanced chassis and suspension analysis. It samples 18 inputs at the same instant in time using 18 separate converters with 5th order anti-aliasing filters.

Multiple SVIMs are synchronized so that every SVIM in the vehicle samples its high resolution AV inputs at the same instant in time. This is important when looking at the relationships of signals collected from different sensors around the vehicle and is useful for test rigs and real time simulations.

SVIMs are versatile in nature and can be located close to sensors, reducing the weight and complexity of wiring. When used in multiples, up to 200 sensor inputs are available. The SVIM supports many different types of sensors, including unamplified thermocouples and strain gauges.

The SVIM is configured and controlled using the Data Logger Manager software, that has special programming functions for the SVIM. This will also automatically update the firmware version in the SVIM if necessary. The Data Logger communicates to the SVIM via the CAN bus.

Compatible with:

• ACL (up to eight SVIMs)
• C185 (up to two SVIMs)

Inputs:

• 6 x Fast analogue voltage inputs

Update rate 5000 Hz (1000 Hz when used with ADL3), resolution 12 bit

Used to measure the signals from sensors with variable voltage outputs, such as potentiometers, 3-wire pressure sensors, thermocouple amplifiers, accelerometers.

• 10 x High resolution analogue voltage inputs

Update rate 1000 Hz, resolution 15 bit

Used to measure the signals from sensors with variable voltage outputs, such as potentiometers, 3-wire pressure sensors, thermocouple amplifiers, accelerometers.

• 8 x Differential analogue voltage inputs

Update rate 1000 Hz, resolution 15 bit +sign

Programmable amplifier gain range of 1 to 64, used for strain gauges or thermocouples.

• 2 x Speed inputs

Update rate 100 Hz, resolution 12 bit

Programmable trigger levels, ability to measure frequency, period or pulse width.

The voltages from these inputs can also be logged directly as separate channels, allowing the user to see the waveform of the sensor signal.

Communications:

• 1 x CAN at 1 Mb/s bus speed

 Physical:

• Case size 48 x 90 x 26.2 mm excluding connector.
• Weight 150 gram

Connectors:

• 1 x 55 pin Autosport connector for sensor connection
• 1 x 5 pin Autosport connector for power and communications