Analog Voltage Amplifier

A fully digitally configurable device from FUTEK, Irvine, CA, features Bluetooth® wireless communication and USB configurability as well as built-in active protection for exceptional reliability and robustness. The IAA105 requires no manual process for calibration and setup. The entire calibration process can be performed through the SENSIT® Lite app. Users can adjust the gain or other settings, such as bridge excitation, output range, bandwidth, and shunt. They can also enable and disable features as well as restore data according to their needs. Three shunt values: 60, 100, and 150 Ω, and two bandwidth stages, 1 and 10 kHz, can be selected.

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Autoclavable Encoder

An autoclavable encoder for surgical robotic applications is available from Portescap. West Chester, PA. The M-Sense12A magnetic encoder provides a wide resolution range up to 1024 lines and accuracy up to 1.5 degrees, making it an ideal choice for surgical applications requiring accurate positioning and closed-loop motion feedback. The encoder works accurately at high input speeds, with a maximum input speed of 120 kRPM at 1024 lines/ rev in incremental mode. Incremental and absolute feedback options are available.

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Miniature Rotary Encoder

EBE, Leinfelden-Echterdingen, Germany, has launched a miniature safety rotary encoder. The ESC17 mini safety offers magnetic detection of the rotational movement and the touch signals. With 16 locking positions, the ball-spring locking mechanism used offers pleasant haptic feedback. It is designed for several hundred thousand revolutions and tactile movements, and feel can be adapted to customer requirements. Protection against ESD discharges in accordance with IEC 61000-4-2 when installed is guaranteed. Two independent HALL sensors ensure that the rotation and button signals are recorded redundantly. In the event of an error, a separate signal is issued via a dedicated PIN.

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Miniature TMR Sensors

Littelfuse, Chicago, IL, has released two miniature tunnel magnetoresistance (TMR) effect sensors. The 54100/54140 sensors offer sensitivity and 100x improvement in power efficiency compared to Hall Effect sensors. The 54100 flange-mount sensor has standard lead lengths of 300 and 1000 mm, and customization options for high-volume production needs. The 54140 flat pack sensor is available as a three-wire sensor configuration.

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