marco: Structure-Borne Vibration Sensor

ps/ks/11

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Contact Structure-borne Sound PDF Version Deutsche Version






The sensor ps/ks/11 is used for measuring structure-borne vibration in machine parts. It shows no resonance behaviour in the range of usual machine frequencies since there is no moveable mass. Unlike conventional vibration transducers, the sensor is not mounted on the surface of the machine part, but fixed in a bore hole.
The output signal is proportional to the amplitude of the pressure waves and is not dependent on the frequency.
The sensitive element contains a special sandwich of several piezo-ceramic layers, which is imbedded and hermetically sealed in the sensor body. In many applications the output signal is so high that there is no need for a preamplifier.


Connections


dl200
db200
de200
signal
Pin 3
centre wire
centre wire
ground
Pin 4
shield
shield


Isolation
body/shield 500 V
Capacity
25 nF +/-20 %
Cable
2 m long 2 mm Teflon isol. coax.
Sensitivity
approx. 7.5 nC/N
Mounting hole
Ø 11 H7, 10 mm deep

-   Easy mounting
-   High signal level
-   No voltage supply needed
-   No moveable mass, no resonance
-   Amplitude of signal is independent from frequency range (to 200 kHz)
-   Direct measurement of the pressure component of structure-borne vibration

Mounting

The structure-borne vibration sensor ps/ks/11 may be mounted anywhere where the machine material is thick enough to drill a 10 mm deep hole with a diameter of 11 mm. The sensor is inserted and clamped (with appr. 8 Nm) into the hole. The orientation of the sensor has no influence on the output signal.

Special Features

The frequency response of the sensor is linear, so that even structure-borne vibrations with extremely low frequencies can be processed. However, if low frequencies are not desired they can be easily filtered by shunting an suitable resistor.


Order Number
Release
Description
ps/ks/11/dl200
1.0
Structure-Borne Vibration Sensor ps/ks/11 with Lumberg connector type RKMC3
ps/ks/11/db200
1.0
Structure-Borne Vibration Sensor ps/ks/11 with BNC connector
ps/ks/11/de200
1.0
Structure-Borne Vibration Sensor ps/ks/11 without connector




Contact Structure-borne Sound PDF Version Deutsche Version

marco Systemanalyse und Entwicklung GmbH
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http://www.marco.de/E/D/ps/ks/11/001.html - Rev. 1.28 (2003-06-23)
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