Payment:

T/T, L/C or Paypal

OEM/ODM:

Available

MOQ:

1PCS

Model:

QA-1

Lead Time:

5-7 days

QA-1 Barometric Pressure Sensor is a professional sensor designed for accurate atmospheric pressure measurement. It incorporates high-precision internal components and features surge protection and reverse-polarity protection to ensure reliable and stable operation.

The sensor has a compact and aesthetically pleasing design, allowing easy installation while saving space. It should be installed inside a dedicated radiation-shielded ventilated enclosure, in a relatively stable environment with unobstructed airflow to the ambient atmosphere.

The QA-1 sensor is compatible with a wide range of data loggers and transmitters, enabling precise measurement of atmospheric pressure. It is widely used in meteorology, environmental monitoring, agriculture, photovoltaic systems, power utilities, transportation, and related industries.

Sensor Operating Principle

The barometric pressure sensor adopts a piezoresistive sensing principle and is connected to a Wheatstone bridge through lead wires. When no external pressure is applied, the bridge remains in a balanced state. When pressure is applied to the sensor, the resistance of the sensitive element changes, causing the bridge to become unbalanced.

When a constant current or constant voltage is applied to the bridge, it outputs an electrical signal proportional to the applied pressure. This signal is then converted through A/D conversion and received by a data acquisition unit. The data acquisition unit processes the signal and transmits the measurement results to a computer in an appropriate format.