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YK-TFA. Tuning Fork Level Switch
YK-TFA series tuning fork level switch is a new type of level switch designed based on the principle of vibrating tuning forks.
description1
Zipper closure
1/5 zip athletic pullovers for men. Stretchy, lightweight, fast-drying
fabric for superior performance.
REGULAR FIT - US standard sizes. An athletic fit that sits close to the
body
for a wide range of motion, designed for optimal performance and all day
comfort.
FEATURES - Quarter zip closure;Thumbholes on long sleeves to keep them
in
place during workout
Product Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Structural Form | Cable Type, Rod Type | Connection Method | Flanged Type |
| Housing Material | SUS304, SUS316, Aluminum Alloy | Measuring Range | 0~20m |
| Probe (Medium) Material | 304, 316L | Ambient Temperature | -20 ~ 60℃ |
| Process Temperature | -20 ~ 380℃ | Applicable Pressure | 1.0~60Bar (Negotiable) |
| Accuracy | ±0.1% | Electrical Interface | M20×1.5 (Negotiable) |
| Output Mode | 4~20mA, HART Protocol, RS485 | Protection Grade | IP65, IP66, IP67 |
| Certification | Intrinsically Safe, Flameproof | Power Supply Voltage | 220VAC, 24VDC |
Product Principle
A piezoelectric crystal at the base drives the fork tines, while another piezoelectric crystal senses the vibration signal, forming a feedback loop that keeps the fork in resonance. When material comes into contact with the fork, the vibration amplitude gradually decreases until resonance stops, at which point the control circuit outputs a switching signal. Due to the natural attenuation of sensitivity from the fork tip toward the base, material buildup or discharge around the vessel does not cause false signals.
In simple terms, the tuning fork is excited by a piezoelectric crystal to produce mechanical vibration at a specific frequency and amplitude. When immersed in liquid or solid material, the vibration characteristics change. This frequency shift is detected by the electronic circuit and converted into a switching output.
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