DC-DC LVDT with Electronics
The DC-DC LVDT uses proven technology in the terms of AC coil ideology. A DC driver circuit is used to convert a DC input signal to AC, and then demodulates the AC LVDT output to DC. The contactless technology used allows a high reliability. MTBF >1,000,000 hours. The use of the DC converter allows the LVDT to be used as a replacement technology for devices such as linear potentiometers without the need of modifying or changing on-aircraft electronics.
A few benefits of this technology is that a variable input voltage can be used, as well as the output signal can be configured for majority of customer interface requirements. The device can be dual channel for dual redundancy applications without suffering from effects of dither wear and fatigue.
Key features of DC-DC LVDT with electronics:
Our products are typically developed from a custom set of requirements, however some key features include:
- Supply Voltage – 8Vdc to 32Vdc
- Supply Current - <30mA
- Output Signal – 0.5V to 4.5V, 0.5V to 9V, Rail to Rail, 4-20mA
- Output Current (Sourcing) - <5mA
- Output Current (Sinking) - <20uA
- Output Impedance - <100ohm
- Output Lag - <1.5mS
- Settling Time - <1mS
- Supply Voltage Variation on Output - <0.001%
- Temperature Stability - <50ppm/°C
- Linearity - <±0.2% FS
- Electrical Stroke – 10mm to 400mm
- MTBF > 1,000,000 hours
Applications:
- Replacing potentiometers with contactless sensor, where improved service life or environmental sealing is required