Principle Of Operation; The Measuring Chain - HBM PACEline CMD600 Manuel D'emploi

CMD600

3.6 Principle of operation

Piezoelectric
transducer
Fig. 3.1 Block diagram CMD600 measuring chain
The CMD600 charge amplifier is connected to a transducer for signal
conditioning. The CMD600 converts the electric charges to a proportional
output signal of −10 ... +10 V
The measurement can be triggered with the RESET/MEASURE input and the
input capacitors of the charge amplifier cleared with (RESET).
The charge amplifier is fitted with TEDS (Transducer Electronic Data Sheet).
The output signals can be transferred for monitoring, control and optimization
of a production process to an industrial control.
The device is controlled via the digital inputs and the Ethernet interface.
The amplifier is designed for an industrial environment with a robust aluminum
housing, large voltage input range from 18 to 30 V and the protection class
IP60, and it is intended for installation in direct vicinity of the sensors. This
applies for the case where connection cables or protective caps are attached
to the connecting sockets.
The charge amplifier is parameterized with the PC software CMD600
Assistant.

3.6.1 The measuring chain

Exact, interpretable measured values can only be obtained with reliable
measurement technology. A typical measuring chain consists of a
piezoelectric sensor with cable and a charge amplifier.
The analog voltage signal can be analyzed and evaluated in evaluation
systems (data acquisition and evaluation, cycle control). This is usually
implemented with a PLC.
A2781−2.1 en/de/fr
Charge amplifier CMD600
(see the test certificate for accurate data).
DC
Supply voltage 18 ... 30 V
Autoscale
RESET / MEASURE
Digital input 1
Digital output 1
Digital output 2
Ethernet system interface
Signal output
−10 ... +10 V
DC
0 V
DC
TEDS
15
DC