Pressure sensor is water resistant to 10bar
Relying on an advanced chip design and a water-resistant gel formula, the new sensor is resistant to chemicals like chlorine, bromine, and salt water and will also resist soaps or detergents used when showering or cleaning. While other sensors can require up to seven days to regain maximum accuracy after coming off the production line, the LPS33HW is ready for action in less than half that time. This is due to the sensor’s high-performance built-in processor and the advanced formula of its water-resistant gel filling, claims STMicroelectronics. The 10bar pressure sensor can withstand being submerged up to 90 meters, and the very low RMS pressure noise of 0.008mbar allows apps like an altimeter, depth gauge, or weather monitor to deliver consistent and stable results. The sensor accuracy drifts by less than ±1mbar per year.
When soldered to a circuit board during product manufacture, the accuracy is affected by less than ±2mbar, and returns to normal after less than 72 hours – significantly quicker than similar water-resistant pressure sensors. The LPS33HW is in production now in a 3.3×3.3×2.9mm cylindrical metal package suitable for use with O-ring seals.
STMicroelectronics – www.st.com
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