How does a Barton chart recorder work?
The Barton chart recorder is an essential instrument used to record and monitor various physical parameters in industrial environments. Its functionality and reliability have made it an integral part of many industrial processes. But how exactly does a Barton chart recorder work? Let's unravel its inner workings in this informative article.
The Barton chart recorder is a mechanical device used to measure, record, and display different variables such as pressure, temperature, flow rate, and level. It utilizes a strip chart recorder to create a graphical representation of the measured data over time.
2. The principle behind the chart recorder:
At the heart of the Barton chart recorder lies a bourdon tube, a flexible coiled tube that has a restricted end and a free end. The restricted end is connected to the process line carrying the variable being measured, while the free end is linked to a mechanical linkage system.
3. Operation of the bourdon tube:
When the process line experiences a change in pressure, temperature, flow rate, or level, it causes the bourdon tube to deform. This deformation results in the free end of the tube moving, which in turn affects the movement of the mechanical linkage system.
4. The mechanical linkage system:
The mechanical linkage system, connected to the free end of the bourdon tube, amplifies the movement and converts it into a linear motion. This linear motion is then further translated into rotary movement by a series of gears and levers.
5. The strip chart recorder:
The rotary movement generated by the mechanical linkage is finally recorded on a strip chart. The chart is composed of a rotating drum with a continuous strip of paper attached to it. The chart moves at a constant speed, typically one inch per hour, and cycles around the drum over a predetermined period.
6. Chart movement and graphical representation:
As the drum rotates, the linear motion from the mechanical linkage system is converted into rotational motion of a pen. The pen traces a line across the moving paper chart, creating a graphical representation of the measured variable over time.
7. Calibration and adjustment:
To ensure accuracy, Barton chart recorders require periodic calibration and adjustment. This is achieved by adjusting the mechanical linkage system and fine-tuning the sensitivity of the pen. Proper maintenance guarantees the longevity and precision of the instrument.
8. Advantages and applications:
Barton chart recorders offer several advantages, making them suitable for various applications. They require no external power supply, as their operation is solely mechanical. They are robust, reliable, and can withstand harsh industrial environments. These qualities make them ideal for monitoring and recording variables in industries such as oil and gas, chemicals, and power generation.
9. Limitations and advancements:
Although Barton chart recorders have been widely used for decades, technological advancements have introduced more advanced data acquisition systems. These systems offer real-time data analysis, remote monitoring, and higher accuracy. However, Barton chart recorders continue to be valuable in situations where simplicity, durability, and reliability are paramount.
10. Conclusion:
The Barton chart recorder is a remarkable mechanical device that translates physical variables into graphical representations. Its bourdon tube, mechanical linkage system, and strip chart recorder work synergistically to provide accurate and reliable measurements over time. While newer technologies have emerged, the Barton chart recorder remains relevant and indispensable in various industrial applications.
Want more information on hydraulic driven gas booster, valve test stands, hydraulic pressure test unit? Feel free to contact us.