Fluid Pressure Measurement Using Capacitance Variation TRIZ Cases
- Pressure Sensor Membrane Layout to Prevent Impact Damage
A laterally offset membrane and oscillating structure reduce collision, deformation, and characteristic drift in atmospheric pressure sensing.
- Differential Capacitive Pressure Sensor for Wide-Range Precision
Sequential differential sensing with reference and measurement chambers improves fluid pressure accuracy, dynamic range, and noise resistance.
- Squeeze-Film Gas Pressure Sensing from Thermal Noise
Thermal noise from squeeze-film damping is used to calculate ambient gas pressure across a wide range without membrane displacement.
- Capacitive Pressure Cell Calibration With Square-Wave Gain And Offset
Square-wave excitation and stored digital calibration values correct gain and offset in capacitive pressure cells, avoiding laser trimming.