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Functional Principle, Technical Data
turboSPEED DZ140
2.
Functional Principle, Technical Data
2.1
Applications
The non-contacting compact revolution counter is designed for industrial application for turbo charger moni-
toring on test benches and for measurements during driving tests.
2.2
Functional Principle
A very fast proximity sensor responds to turbo charger blades (depending on initial state) made of electrically
conducting materials passing by. The eddy current loss principle effects impedance changes in a measuring
coil (sensor). This change of impedance gives rise to an electric signal.
2.3
Structure of the Complete Measuring System
The non-contacting single-channel measuring system consists of:
- Sensor and sensor cable
- Controller (installed in a compact aluminum housing)
- Power supply and signal cable, see Chap.
Individual components of the measuring system can be changed without limiting the functionality.
turbo
SPEED
Remote
Status
SENSOR
SUPPL
Y /
OUTPUT
Mode
RA
W SIGNAL
Blades
Sensor
Controller
1 2 3
4
5
67
89
1011
12
13
14
15
16
Fig. 1 Components for speed measurement
