MoTeC ACL VIM - Manual (Page 27)

MoTeC Operation 23
Caution Operation outside the specified voltage range may cause damage to
the device.
The various measurement devices will specify the available input range in
their specifications.
Resolution
The resolution is the minimum change that the input can measure. For
example an input that has a 12 bit analogue to digital converter can measure
4096 different steps. If the input has a range of 0 to 5 volts, it will have a
measurement resolution of 0.0012 volts (5 volts divided by 4096 steps).
The resolution will correspond to a certain physical change. For example, if
measuring suspension position, the resolution will correspond to the minimum
distance change that can be measured.
For many measurements 12 bits (4096 steps) is sufficient; however there are
some applications where a higher resolution is desirable. In this case the VIM
can be used to measure up to 15 bits (32767 steps), providing enough
resolution for very demanding applications.
The various measurement devices will specify the available resolution in their
specifications.
Update Rates
Each input is measured at a certain maximum rate. The rate is dependent on
the capabilities of the measuring device and can vary from one input to
another. For example the VIM has some inputs that update at 500 Hz and
some that update as fast as 5000 Hz.
See the Data Logging section for details on the relationship between logging
rates and update rates.
Refer to Appendix E: Update Rate Summary.
Input Types
The various measurement devices have a number of different input types
which are designed to suit the different types of sensors.
The various MoTeC measurement devices will contain one or more of the
following input types.
Analogue Voltage Inputs
Available on: VIM, ADL2, SDL, E888, E816