https://www.analog.com/jp/resources/technical-articles/liquid-level-control-delivery-system-compensated-silicon-pressure-sensor-precision-pt-i.html
Liquid-Level Measurement System Uses a Compensated Silicon Pressure Sensor and Precision...
This reference design is the first in series on liquid-level measurement and control. Here in Part 1, differences among moder
silicon pressure sensorliquid levelmeasurement system
https://www.wartsila.com/encyclopedia/term/piezoresistive-silicon-pressure-sensor
Piezoresistive silicon pressure sensor
The Sensor is generally a temperature compensated, piezoresistive silicon pressure sensor chosen for its excellent performance and long-term stability.
piezoresistivesiliconpressuresensor