Sonatest SMM and LMM Transducers

Small and Large Single Compression Transducer with Replaceable Soft Membrane

Overview

The Sonatest SMM and LMM are single compression transducers with replaceable soft membranes. These contact-type transducers are excellent for detecting flaws on rough, round, and irregularly shaped surfaces.

Features

Single normal beam compression wave transducer
Circular, lead metaniobate crystal
Max operating temperature 50°C / 120°F
Medium damped for medium bandwidth

Applications

SMM and LMM Transducers are used for flaw detection. Their 'soft nose' membranes ensure better contact between transducer and curved, rough, or irregular shaped surfaces for better coupling of the sound beam to the material.

Bars & Billets
Bond Testing
Castings & Forgings
Lamination

Technical Specifications

Product Code	Description	Frequency (MHz)	Crystal Diameter (mm / inches)	Nearfield Length in Steel (mm / inches)
SMM
SMM2-10	Single Softface 2Mhz 0°	2	10mm / 0.394"	8.4mm / 0.331"
SMM 4-10	Single Softface 4Mhz 0°	4	10mm / 0.394"	16.8mm / 0.661"
LMM
LMM1-24	Single Softface 1Mhz 0°	1	24mm / 0.945"	24.2mm / 0.953"
LMM2-24	Single Softface 2Mhz 0°	2	24mm / 0.945"	48.3mm / 1.902"
LMM4-24	Single Softface 4Mhz 0°	4	24mm / 0.945"	96.6mm / 3.803"

Transducer Version Crystal size	Width/Diameter (mm / inches)	Height (mm / inches)	Connector Options	Position Options
SMM	23mm / 0.906"	42mm / 1.654"	Z	Side
LMM	32mm / 1.26"	60mm / 2.362"	L	Side

Product Literature

Data-Sheet-v24.pdf

Description	Part #	Price
Sonatest SMM2-10 Softfaced Transducer, 2MHz x 10mm, Medium Damped	UT-ST-SMM2-10M	$252.00
Sonatest SMM4-10, Softfaced Transducer 4MHz x 10mm, Medium Damped	UT-ST-SMM4-10M	$252.00
Sonatest LMM1-10 Softfaced Transducer, 1MHz x 24mm, Medium Damped	UT-ST-LMM1-24	$330.00
Sonatest LMM2-10 Softfaced Transducer, 2MHz x 24mm, Medium Damped	UT-ST-LMM2-24	$330.00
Sonatest LMM4-10 Softfaced Transducer, 4MHz x 24mm, Medium Damped	UT-ST-LMM4-24	$330.00