Page 241 - Mahr马尔量具完整

General Technical Data of Inductive Probes

The measuring principle of inductive probes is based The Mahr P2000 series of probes applies a high linear,
on the change of position of the magnet‘s conductive
patented VLDT transducer which is similar to an LVDT
core moving within a coil system. Generally, this is transducer. This also operates according to a differential
distinguished between a half-bridge and LVDT‘s. transformer principle.

S S S

Half-bridge HB LVDT VLDT
(Differential Choke Coil) (Linear Variable (Very Linear
Differential Transducer) Differential Transducer)

Electrical specification of various compatibilities

Type Mahr Tesa Marposs Mahr-Federal
Carrier frequency KHz 19.4 13 7.5 5
P2001
P2004 192 73.75 115 78.74
P2104
P1300 192 73.75 — —
Sensitivity mV / V / mm 1301
1303 192 — — —
1304 K
1318
P2010 19.2 29.5 11.5 7.874
Amplitude V eff 5 3 3.5 2

Schematic drawings of Mahr input amplifiers according to the various
compatibilities

Connector pin
(contact side)
Oscillator Mahr Oscillator Tesa

Marposs Mahr-Federal
Oscillator Oscillator

Millimar | Electrical Length Measuring Instruments 237