Pressure measurement is standard in a wider variety of labs as it can determine properties like flow, level, airflow, weather systems movement, and height and magnitude of water. For engineers and scientists, monitoring pressure allows them the knowledge to improve or troubleshoot. This is why pressure measurement is so vital and accuracy is necessary.
A pressure transducer is a transducer that converts pressure into an analog electrical signal. The device then transmits the electrical signals to the controller, where they are processed and recorded. We also know it as a pressure transmitter. Pressure transducers can read and send pressure data quickly.
They use pressure transducers in many control and monitoring applications such as flow, airspeed, level, pump systems, and altitude. There are various types of pressure transducers depending on the specific use. There are three pressure references for measuring absolute, gauge, and differential pressure.
The Three Types of Pressure Transducers
There are three main types of pressure transducers. Each references a specific pressure measurement.
Absolute pressure transducers measure the pressure compared to a perfect vacuum, using absolute zero as a reference point.
Gauge pressure transducers measure the pressure relative to atmospheric pressure. An example is a tire pressure sensor.
Differential pressure transducers measure the difference between two pressures on either side of the sensor.
Data loggers are devices that automatically monitor and record environmental parameters over time. A data logger has a sensor to receive the information and a computer chip to store it. Once the data is stored, you can transfer it to a computer for analysis.
There are two main types of data loggers. The first is the data logger with a pressure transducer built-in. This data logger is best for applications where pressure is measured but is not critical to the overall well-being of the system.
The other type is a data logger that stores process signals from pressure transducers. This device is entirely separate from the pressure transducer. These data loggers can store 1,000 to 500,000 signals.
Advantages of a Data Logger
A data logger allows one to take measurements anywhere, even during transit, without human intervention. In addition, the logger can space the measurements to obtain transient events or separate the measurements far apart to maximize recording duration. These advantages are significant when measuring pressure, specifically weather systems like tsunamis and storms.
A data logger is more effective, reliable, and accurate than other options. Also, it saves lab time and expenses of having a person do the recording manually. The data logger also reduces the time needed for analyzing measurements.
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