1661891499844 Cd1308acdclvdtssmall

Why Use an AC LVDT versus a DC LVDT Linear Position Sensor?

Aug. 29, 2013
Why haven't DC-operated LVDT linear position sensors replaced AC-operated versions?
When initially introduced fifty years ago, all LVDT linear position sensors were AC-operated and required external oscillators, carrier amplifiers, demodulators and filers to operate.

The introduction of high-density microelectronics enabled the incorporation of signal conditioning and processing functions inside the LVDT housing rather than requiring an external box. The DC-operated LVDT maintains all the desirable characteristics of the AC-operated LVDT, but has the simplicity of DC operation.  It is comprised of an AC-operated LVDT and a carrier generator/signal conditioning module.

So why haven't DC-operated linear position sensors replaced the original AC-operated versions? 

Read the entire article to find out.

Sponsored Recommendations

Why Electromechanical Actuators are Increasingly Replacing Hydraulic Systems

Are your heavy duty, automation applications tired of the mess, space, complexity, cost and other issues related to hydraulic systems? Converting to electromechanical linear actuators...

Validating and Optimizing Production Machinery

Join us on the path of efficient and digitalized production.

2025 State of Technology Report: Motors, Drives & Motion

Industrial motors account for a significant portion of energy costs. But reduced power spend isn’t the only advantage of using drives. And motor selection isn’t always...

Building a sustainable battery ecosystem with Jagenberg, Eirich and Siemens

Watch our one-hour on-demand webinar where industry leaders in the battery sector— Jagenberg Group, Eirich and Siemens- come together to forge the path towards a sustainable battery...