MEMS stands for “Micro Electro Mechanical Systems”. MEMS devices combine mechanical, electromagnetic, thermal and chemical functions on a millimeter-size chip. The technoloy is an extension of microelectronics processes to create micro-machined structures integrating sensing and actuatuong capabilities to computing power.
It often yields better performance and better reliability through the use of high quality clean romm processes. Morover, miniature ensing element stabilise quicker than their macroscopic counterparts, leading to better acquisition rates and more accurate measurements during transients.
To interact with downhole fluids, MEMS elements must be protected againt corrosive compounds. Additionally, although the sensing element is exposed to pressure, the acquisition system must be isolated from high pressure conditions.
This is achieved by placing the sensing element in a pressure feedthrough behind a protective diaphragm. Combined in a miniaturized system, all these elements contribute to produce an outstanding sensor.
The electronics makes use of the latest analog to digital conversion and MCU technologies coupled with state-of-the-art memory devices. Tailored, embedded firmware processes data on the fly to adapt recording behavior and optimze battery consumption.