HBM QuantumX - Digitalization and Signal Path

Introduction
26 A03031_24_E00_01 HBM: public QuantumX
4.4 Digitalization and signal path
Data rate
QuantumX measurement modules with the suffix B, like the MX840B, for
instance, have decimal data rates such as 600, 1200, ....19,200 S/sec avail
able, in addition to classic data rates such as 500, 1000, .... 100,000 S/sec.
When there are several modules in a group, the selected data rate domains
must be identical. Catman® or MX Assistent software allows toggling the sam
ple rate domain, e.g. From „Classic“ to „Decimal“.
Signal paths
Synchronizing the acquisition of all channels allows signal analysis of all
recorded measurement data at the same time.
It often happens that some sensor signals should be made available in real
time, in parallel with the data analysis of highfrequency signals (e.g. 100 kS/
sec per channel), i.e. deterministically, with a moderate data rate (e.g. 1 kS/sec
or 1 ms control loop) and with a minimum latency time (e.g. max. 1 ms).
To do this, the modules need to be connected with each other via the FireWire
bus and the signals need to be made available "isochronously", for example, to
be computed and/or output via another module (analog, CAN, EtherCAT).
To give this parallel operation optimum support, each QuantumX measurement
channel generates two signals.
The maximum isochronous data rate per channel is approx. 5 kS/sec (125 μs
clock pulse on the FireWire bus).
Scaling
QuantumX supports the following types of scaling:
S Two points (2‐point / y=mx+b)
S Table (multi-point) supported from MX840B, MX440B, MX1609/KB/TB,
MX809B, MX430B, MX238B
S Polynomial, supported from MX840B, MX440B, MX440B, MX430B,
MX238B