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Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

20/04/2021 - 22/04/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

PWM offers low cost digital signalling

PWM offers low cost digital signalling Penny & Giles has developed a pulse-width modulation (PWM) option for its ICT range of contactless in-cylinder linear transducers. Launched last year, the rugged and reliable ICT range was designed for hostile conditions inside mobile and static hydro-pneumatic actuators. The new option provides further assurance for OEMs as the digital signal of the PWM is more robust and less vulnerable to noise than analogue voltage signals. Penny + Giles' ICT transducers come with a separate electronics package, EICT. This can be located up to 10m away from the transducer protecting it from the harsh environments associated with heavy-duty applications such as steering position actuators and hydro-pneumatic suspension systems. Currently, the EICT provides analogue position feedback proportional to the cylinder rod position for actuator strokes up to 2000mm. The PWM option produces a TTL-level compatible signal which has a duty cycle proportional to transducer displacement. This can be converted easily to a digital value by most microcontrollers without the necessity for expensive high-resolution A/D converters. Four different output frequencies can be selected, 100Hz, 130Hz, 310Hz and 1000Hz, allowing users to choose the best compromise between digital resolution and acquisition speed for their particular system.
 

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