Editorial Technical Reference

Ultrasonic Transducer Array

This page explains how Ultrasonic Transducer Array is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precisely arranged assembly of multiple ultrasonic transducers that generates and focuses ultrasonic waves for cleaning applications.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Ultrasonic Transducer Array

Definition
The Ultrasonic Transducer Array is a critical component within an Industrial Ultrasonic Vegetable Washer. This array consists of multiple piezoelectric transducers arranged in specific patterns to create uniform, high-intensity ultrasonic cavitation throughout the washing chamber, effectively removing dirt, pesticides, and microorganisms from vegetable surfaces without damaging the produce. The array is designed for integration into washing equipment, where it converts electrical energy into mechanical vibrations via the piezoelectric effect in each transducer element. When driven at ultrasonic frequencies (typically 20-40 kHz), these vibrations create microscopic cavitation bubbles in the washing fluid that implode violently, generating intense localized cleaning action through micro-jets and shock waves. The array is available with a number of elements ranging from 12 to 48, with a frequency range of 25-40 kHz, and a power per element of 50-100 W, resulting in a total power range of 600-4800 W. It operates on a driving voltage of 100-240 V AC and has a capacitance per element of 4000-8000 pF. The operating temperature range is 0-60°C, with a storage temperature range of -20-70°C. The array is rated IP54-IP65 according to IEC 60529, suitable for wet environments. The piezoelectric material is PZT-4, and the housing is made of stainless steel SS304 per ASTM A240, providing corrosion resistance in cleaning solutions. The weight ranges from 5-20 kg, and dimensions are customizable to tank size, with typical dimensions of 300×200×100 to 600×400×150 mm. The array is encapsulated with epoxy resin for protection. These specifications are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application.
Working Principle
The array operates on the piezoelectric effect. Each transducer element contains a piezoelectric ceramic (PZT) that deforms when an electric field is applied. An alternating electrical signal at ultrasonic frequencies (typically 20-40 kHz) causes the ceramic to expand and contract, generating mechanical vibrations. These vibrations are transmitted to the washing fluid, creating alternating high and low pressure zones. During the low-pressure phase, microscopic bubbles form; during the high-pressure phase, they collapse violently, producing cavitation. This implosion generates intense localized cleaning action through micro-jets and shock waves, effectively dislodging contaminants from vegetable surfaces.
Common Materials
Piezoelectric ceramic (PZT), Stainless steel housing, Epoxy resin encapsulation
Technical Parameters
ParameterTypical rangeNotes & selection driver
Number of Elements12–48 pcsDetermines cleaning area and power density
Frequency25–40 kHzLower frequency for heavy cleaning, higher for precision
Power per Element50–100 WAffects cleaning intensity
Total Power600–4800 WCalculated from element count and power per element
Driving Voltage100–240 V ACTypical mains voltage range
Capacitance per Element4000–8000 pFAffects impedance matching
Operating Temperature0–60 °CAbove 60°C may degrade piezoelectric performance
Storage Temperature-20–70 °CAvoid extreme cold to prevent cracking
IP RatingIP54–IP65Higher rating for wet environmentsIEC 60529
Piezoelectric MaterialPZT-4PZT-4 for high power, PZT-8 for high temperature
Housing MaterialSS304Corrosion resistance in cleaning solutionsASTM A240
Weight5–20 kgDepends on element count and housing
Dimensions (L×W×H)300×200×100–600×400×150 mmCustomizable to tank size

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Piezoelectric Element Part
    Converts electrical signals to mechanical vibrations
    Material: Lead zirconate titanate (PZT) ceramic
  • Backing Layer Part
    Absorbs backward radiation and controls vibration damping
    Material: Tungsten-epoxy composite
  • Matching Layer Part
    Improves acoustic impedance matching between transducer and fluid medium
    Material: Aluminum or polymer composite
  • Housing/Frame Part
    Provides structural support and precise positioning of elements
    Material: 316L stainless steel
  • Electrical Connectors Part
    Delivers power and control signals to individual transducers
    Material: Gold-plated copper with waterproof insulation

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 5 bar
flow rate: 0 to 2 m/s
temperature: -20°C to 80°C
slurry concentration: Up to 20% solids by weight
Media Compatibility
✓ Aqueous cleaning solutions ✓ Mild chemical solvents ✓ Industrial process water
Unsuitable: High-viscosity fluids or abrasive slurries
Sizing Data Required
  • Required cleaning power (W/cm²)
  • Tank or chamber dimensions
  • Target cleaning cycle time

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Piezoelectric Element Degradation
Cause: Thermal fatigue from cyclic heating/cooling during operation, leading to depolarization or cracking of ceramic elements
Acoustic Coupling Failure
Cause: Deterioration of matching layers or bonding materials due to chemical exposure, moisture ingress, or mechanical stress
Maintenance Indicators
  • Significant drop in signal amplitude or signal-to-noise ratio during routine testing
  • Audible buzzing or rattling sounds during operation indicating loose internal components
Engineering Tips
  • Implement thermal management strategies including controlled warm-up/cool-down cycles and environmental temperature stabilization
  • Establish regular acoustic performance verification using calibrated reference standards and impedance testing

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 18563-1:2015 (Non-destructive testing - Characterization and verification of ultrasonic phased array equipment) ASTM E2491-13 (Standard Guide for Evaluating Performance Characteristics of Phased-Array Ultrasonic Testing Instruments and Systems) IEC 63042-101:2020 (Ultrasonic phased array equipment for non-destructive testing - Part 101: General requirements)

Quoted from the published standard.

Manufacturing Precision
  • Element pitch uniformity: +/-0.01mm
  • Acoustic impedance matching layer thickness: +/-5% of nominal value
Quality Inspection
  • Phased array beam profile verification test
  • Electrical impedance and capacitance measurement of individual transducer elements

Manufacturers of Ultrasonic Transducer Array

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Frequently Asked Questions

What is the typical frequency range for this transducer array?

The frequency range is 25-40 kHz, as specified in the directory. Lower frequencies are suitable for heavy cleaning, while higher frequencies are used for precision cleaning. The exact frequency should be confirmed with the manufacturer for your application.

What is the total power consumption of the array?

The total power is calculated from the number of elements and power per element, ranging from 600 W (12 elements at 50 W each) to 4800 W (48 elements at 100 W each). This is a reference range; the actual total power depends on the specific configuration.

What is the IP rating and why is it important?

The IP rating is IP54 to IP65 per IEC 60529. This indicates protection against dust and water, which is essential for wet environments like vegetable washing. A higher rating (e.g., IP65) offers better protection. Verify the rating for your specific model.

What materials are used in the construction?

The array uses piezoelectric ceramic (PZT-4) for the transducers, a stainless steel housing (SS304 per ASTM A240) for corrosion resistance, and epoxy resin encapsulation for protection. These materials are specified in the directory and should be confirmed with the supplier.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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