EXTERNAL ELEMENT WITH A PRESSURE SENSOR

The present invention concerns an external timepiece element including a frame made of a first material, said external element further including at least one pressure or altitude sensor, characterized in that said pressure or altitude sensor is formed of at least one disc or plate, said disc or plat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MULLER JULIETTE, FRANCOIS NICOLAS, BOURBAN STEWES
Format:	Patent
Sprache:	eng
Schlagworte:	HOROLOGY MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS TESTING TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	The present invention concerns an external timepiece element including a frame made of a first material, said external element further including at least one pressure or altitude sensor, characterized in that said pressure or altitude sensor is formed of at least one disc or plate, said disc or plate being formed of or coated with a binder and a piezochromic pigment, said piezochromic pigment being selected to react at a specific pressure, so that said pigment changes from a first colour to a second colour when said specific pressure is reached.