Ref: DIT-5200L

Low cost, high accuracy inductive differential position sensor - ± 0.25 to ± 2mm

  • Differential displacement measurement by eddy current
  • 1, 2 or 3 measurement channels
  • Resolution < 150 nm
  • Target: Aluminium
  • Non-linearity < 0.1% PE
  • Very low temperature sensitivity < 0.03% PE/°C
  • Measuring range: ±0.3 mm to ±1.9 mm
  • Output signal: ± 10 VDC
  • Bandwidth: 0-20 kHz
  • Power supply: ± 15 Vdc
  • Operating temperature : -61.6°F to +221°F (sensor)

Download the product sheet

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Introduction

The DIT 5200L is a non-contact differential displacement measurement system of very high accuracy. The measurement is based on the use of two identical eddy current sensors positioned on either side of the target and connected to remote electronics. The displacement of the target from the reference position generates an electrical signal reflecting the variation, without any noise and without the need to add the signals.

By precisely pairing the sensors, the DIT-5200L can measure positional variations with very high accuracy (approx. 0.15% of the measurement range), resolution (< 100 nm), and bandwidth (0-20 kHz) over ranges from +/- 250µm to +/- 1.9mm.

It can be used in cryogenic conditions or under a vacuum of 10-6 torr.

Setup

The system consists of an eddy current transducer (or probe), and remote electronics for powering the transducer and conditioning the response. The DIT-5200L can handle up to 3 measurement channels, and outputs a +/- 10V voltage that is perfectly linear with displacement.

Sensor specifications

Probe measuring range ±mm Position at 0 in mm Standard non-linearity ± %PE Maximum non-linearity ±%FR Typical Sensor TempCo ± %FR/°C Resolution % PE at 1 kHz BW at PE Resolution % PE at 1 kHz at zero
15N 0.25 0.38 0.15% 0.30% 0.02% 0.015% 0.004%
15N 0.51 0.64 0.25% 0.50% 0.03% 0.008% 0.002%
15N 0.89 1.02 0.50% 1.00% 0.03% 0.005% 0.003%
20N 0.25 0.51 0.10% 0.20% 0.02% 0.025% 0.005%
20N 0.51 1.02 0.15% 0.30% 0.02% 0.015% 0.005%
20N 1.27 1.52 0.25% 0.50% 0.03% 0.008% 0.003%
20N 1.91 2.16 0.50% 1.00% 0.03% 0.005% 0.002%

Applications

  • Positioning of precision antennas
  • Mirror position control
  • Laser guidance
  • X/Y orbit tracking
Technologie
Eddy Current
Etendue de mesure linéaire
0.9 / 1.9 mm
Measuring range
0 à ±50 mm
Nonlinearity (% FS)
± 0.1 %
Bande passante (-3 dB)
20000 Hz
Signal otuput
± 10 VDC
Analog output signal
0-5 VDC
Température de fonctionnement
-52 to 105 °C
Protection Class
IP40, IP67
Tension d'alimentation
10 Vcc
Housing
Steel
Application
High Accuracy, OEM

  • Special calibration with non-standard measuring range,
  • Special cables; connector on the cable, sealed feedthrough.
  • Calibration micrometer
  • 12 or 24Vdc power supply
  • Product training and calibration techniques

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Phone +33 1 46 91 93 32