There are no effects of turbulence, foaming, and oscillation on the delivery and detection of the switch. This instrument has many benefits that make its use efficient and reliable. Almost every water tank comes with a vibrating tuning fork liquid level switch that keeps the liquid levels in check and lets the output unit know if there are any changes. Its vibration is constant, but as soon as it comes in contact with a medium with a varying viscosity than air, there is a sudden change in its vibration recorded by the device and sends a signal to the output device. It is not possible to physically observe the fluid levels of tanks since they are usually set up in areas with low access, and this is where this instrument comes in handy!Īdditionally, in a vessel, when the fork is oscillating, the natural frequency. The device transmits a solid-state relay output in the form of an alarm, pump, or valve when the liquid gains a specific level inside the tank. It is an efficient instrument that is frequently in-use for monitoring the general elevation of a liquid in a tank. These oscillating tuning forks are set straddling inside vessels’ e the vessels’ tops or with the fork jutting out in a horizontal alignment to the tank. Thus, the material compatibility with the fork’s material is a crucial factor to take into deep consideration. In a general setting, the fork juts out from the switch housing and direct contact with the medium. Generally, in water, which has a higher density than air, the tuning fork will vibrate with a lower frequency representing water in the tank. Since all the mediums’ viscosity differs, they also affect the vibration of the tuning fork. The forks vibrate in the known frequency of the default medium that is air. The piezoelectric oscillator’s tuning or oscillation of the forks makes the device vibrate in the default frequency, which is air. These devices are commonly present inside water tanks for monitoring purposes and to activate switch contacts. This circuit is usually put inside large vessels with liquids to check their levels or their presence. (b)(i) A longitudinal wave is one whose particles vibrate in the same direction (parallel) to the direction in which the wave travels.What is a tuning fork level switch device?Ī tuning fork device combines two metal tuning forks in a circuit that oscillates and is known as the tuning fork level switch.
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