The idea for the intelligent pendulum was conceived by Dr John C Taylor who has one of the world's most comprehensive collections of early English clocks. He expressed to the Marble team a simple desire 'to hear his collection chime in unison'. We set to work developing a range of concepts to substitute the pendulum bob on a long case clock with an 'intelligent' one, housing a mechanism to translate the length of the pendulum by microns. The intelligent pendulum continually monitors absolute time and adjusts its length accordingly. Product testing highlighted a huge swing in time accuracy to the antique clocks, all chiming in unison!
Following successful testing, the production model was developed, containing an IR transceiver, pulsed laser, accurate miniature stepper motor, temperature and pressure transducers, an accurate quartz crystal and a microprocessor. An IR communication protocol was proven in this phase to enable data to be extracted from the pendulum. Custom embedded software was written at Marble. After designing the custom PCB the team selected a low volume manufacturing partner to manufacture the PCB's. As part of the manufacturing process a test and calibration jig was designed and built to enable the automated programming of the microprocessor, 100% testing of the system and accurate time calibration.
Marble assembled the first production run in their workshops and the first sales of the intelligent pendulum were achieved from this run in 2015.
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