Pulsed-Inductive Sensor for Low-Cost Linear Position Feedback
March 19, 2009 by Miles Budimir
Filed under Linear Encoders
Florence, KY – BIW Pulsed-Inductive sensors from Balluff only look like traditional resistive linear potentiometers. However, unlike linear potentiometers, BIW sensors use patented, non-contact technology to provide continuous, absolute, analog position feedback. Because there is no mechanical contact, wear is not an issue. BIW sensors are available at a price level equal to or lower than many linear potentiometers.
Like resistive linear potentiometers, BIW Pulsed-Inductive sensors are available with analog voltage outputs (-10 to +10V or 0 to +10V). But unlike linear potentiometers, these innovative linear position sensors are available with analog current outputs (0 to 20 mA or 4-20 mA) as well, without the need for external signal conditioning. This is important because analog current signals offer much better electrical noise immunity and allow for longer cable runs compared to analog voltage signals.
Balluff BIW Pulsed-Inductive linear position sensors are designed to be form-factor replacements for traditional resistive linear potentiometers, right down to the familiar sliding plunger. It also means BIW sensors are a perfect fit for linear feedback applications such as those found on plastic injection molding machinery, packaging machinery, hydraulic motion bases, and woodworking machinery. BIW sensors are also an ideal solution when low-cost, continuous position feedback is required on hydraulic or pneumatic cylinders.
For further information, visit: www.balluff.com/biw
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