
© a.b. jödden
The programmable
electronic modules of the SM13 series from a.b.Jödden contain a stabilized carrier frequency oscillator, a phase-dependent demodulator and signal processing. The analogue measured value of the inductive displacement transducer is digitized with an integrated A/D converter (16 bit) and processed in a microcontroller. The characteristic curve of the connected displacement transducer can be recorded on the measuring machine and stored in the integrated EEPROM. With this correction data, output signal accuracies ≤0.1 % of the measuring range can be achieved. The digital information is converted into standardized output signals 0(4) to 20 mA or 0 to 5(10) V using a 16-bit D/A converter. An LED signals the center position of the plunger.