A fork density meter, also known as a tuning fork density meter, is a device used to measure the density of a liquid or solid material. It consists of two metal forks that vibrate at a specific frequency when immersed in the material. The density of the material affects the frequency of vibration, allowing the density to be calculated.
When the forks are immersed in a liquid, the density of the liquid causes the forks to vibrate at a different frequency than when they are in air. By measuring the frequency change, the density of the liquid can be determined. Similarly, when the forks are in contact with a solid material, the density of the material can be calculated.
Fork density meters are commonly used in industries such as oil and gas, chemical, and pharmaceutical, where the accurate measurement of density is important for quality control and process optimization. These devices are known for their accuracy, reliability, and ease of use.
Fork density meter installation pipe wall or container #
The boundary effect of the wall on the fluid plus the viscosity effect of the measurement medium itself, these effects will have a certain impact on the measurement calibration of the sensor. In order to overcome these, according to different environments, we have summarized and set the installation method and pipe diameter in advance, which is convenient for selection under the same conditions.
| Installation standard | T-shaped side opening plug-in installation | T-shaped side opening,Recessed installation |
| Illustrate | The fork body part directly enters the main fluid | The fork body is retracted into the side opening part of the pipeline to avoid the main fluid, and retracted by 25mm |
| Flow rate | The flow velocity through the fork is 0-1m/s | The main flow velocity is 1-5m/s |
| Viscosity range | Max 600Cp | Up to 100cP (up to 250cP in individual cases) |
| Temperature | -50-150℃ | -50-150℃ |
| Main pipe size | ≥Horizontal pipeline 100mm(4″);≥Vertical pipeline 150mm (4″) | ≥50mm（2″） |
Fork density meter installation and positioning #
In order to ensure that the density meter can measure accurately and display stably, the flow rate of the measured medium should not be greater than 1m/s, and the diameter of the pipeline where the density meter is installed should be greater than or equal to 159mm. When the flow rate is greater than 1 m/s, the diameter-expanding installation is adopted. For every 1m increase in the flow rate, the diameter of the pipeline where the density meter is installed is expanded by 1.5 times. The fluid is in a laminar state when flowing through the fork
