Vibrating Fork Level Switch

Product Details:

Vibrating tuning fork level sensors are piezoelectric devices with two blades. The blades of the sensor vibrate if there is no material covering the active elements.


peizoelectric driven vibration level switch. Detects high, mid & low levels in vessels with powders & bulk solids.

working
when the blade is covered, the vibration is dampened by material and an electronic circuit forces a relay to switch indicating a covered condition. When the blades are uncovered, the vibration will restart and the relay will indicate an uncovered condition.

principle
in application, the vibrating blades are driven by a piezo crystal excited by the electronics system. The driving signal changes the physical shape of the piezo crystal which causes the mechanical vibration of the blades, much like a piezo type loudspeaker. The perfectly balanced mechanical system then resonates at the frequency of the drive signal. The blade design is carefully balanced to provide a very low loss “tip sensitive” vibrating system and requires a very small amount of energy to keep the system vibrating. A second piezo crystal is used to detect the vibration of the blades, in turn signalling to the electronics if the blades are covered.

Additional Information:

• Item Code: 99887410
• Production Capacity: 1000
• Delivery Time: 2-3 days ( Subject to availability )
• Packaging Details: Comes in a sturdy box to avoid any damage during transit