"Smallest" claim for high-resolution encoders

New from EAO are the 61S Series of Grayhill optical encoders.

New from EAO are the 61S Series of Grayhill optical encoders.

Measuring only 0.625in (16mm), this highly compact product is the smallest high-resolution optical encoder currently available on the market.

Developed for the recording industry and medical test and measurement equipment markets, the 61S has digital control applications for audio mixing consoles, patient monitoring equipment, dialysis and ultrasound equipment, oscilloscopes and machine tools.

The 61S can be customised to meet a wide range of customer requirements.

It is available in 50, 64, 75, 100 and 128 quadrature cycles per revolution.

An option of either 0.125 or 0.25in (3 or 6mm) shaft diameters adds versatility in the choice of knob size.

The larger version is ideal for jog wheels on audio equipment or on machine tool applications where the operator might be wearing protective gloves.

The smaller shaft allows a number of controls to be packed within a confined space.

Supplied with either PCB pins or cable termination (and choice of cable length), the 61S range has a 10 million cycle life and is compatible with CMOS, TTL and HCMOS Logic.

Operating voltage of the 61S is rated at 5.0 +/-0.25V DC and its supply current at 50mA maximum at 5V DC.

Power consumption is rated at 250mW maximum.

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