Sudershan Measuring & Engineering (P) Limited.
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Sudershan Measuring & Engineering (P) Limited. Sudershan Measuring & Engineering (P) Limited. Sudershan Measuring & Engineering (P) Limited. Sudershan Measuring & Engineering (P) Limited.
Sudershan Measuring & Engineering (P) Limited.
Sudershan Measuring & Engineering (P) Limited.
Sudershan Measuring & Engineering (P) Limited.
Home » Our Products » NDT Intsruments » Ultrasonic Thickness Gauge

Ultrasonic Thickness Gauge

Ultrasonic Thickness Tester TT-300
Ultrasonic Thickness Gauge measuring with ultrasonic wave, is applicable for measuring the thickness of any material in which ultrasonic wave can be transmitted and reflected back from the other face.

The gauge can provide quick and accurate measurement to various work pieces such as sheets of board and processing parts. Another important application of the gauge is to monitor various pipes and pressure vessels in production equipment, and monitor the thinning degree during using. It can be widely used in petroleum, chemical, metallurgy, shipping, aerospace, aviation and other fields.

The primary theory of measuring thickness with ultrasonic wave is similar to that of measuring thickness with optical wave. The ultrasonic wave emitted from the probe reaches the object and transmits in it. When the ultrasonic wave reaches the bounding surface of the material, it is reflected back to the probe. The thickness of the material can be determined by accurately measuring the time of the ultrasonic wave transmitting in it

Product Specifications :

Display 128×64 LCD with LED backlight.
Measuring range 0.75mm~300.0mm
Sound Velocity Range 1000m/s~9999m/s
Display resolution: 0.01mm or 0.1mm (lower than 100.0mm) 0.1mm (more than 99.99mm)
Units Metric/Imperial unit seletable.
Lower limit for steel pipes 5MHz probe: 20mm 3.0mm 10MHz probe: 20mm 3.0mm
Power Source 2pcs 1.5V AA size, batteries.100 hours typical operating time(LED backlight off).
Communication RS232 serial port
Outline Dimensions 150mm×74mm×32mm
Weight 238 g
Operating conditions 0 to 45o

Functions :
  • Capable of performing measurements on a wide range of material, including metals,plastic,ceramics,composites,epoxies,glass and other ultrasonic wave well-conductive materials.
  • Transducer models are available for special application,including for coarse grain material and high temperature applications.
  • Probe-Zero function,Sound-Veloctiy-Calibration function.
  • Two-Point Calibration function.
  • Coupling status Indicator showing the coupling status.
  • Battery information indicates the rest capacity of the battery.
  • Auto sleep and auto power off function to conserve battery life.
  • Optional software to process the memory data on the PC.
  • Optional thermal mini-printer to print the measured data via RS232 port.
Measuring Technology
  • Cleaning surface Before measuring, please clean any dust, dirt and rust on the object, and remove any cover such as paint, etc. on it.
  • Improving requirement on roughness Too rough surface will cause error in measurement. Before measuring, please smooth the surface of object by grinding, polishing or filing, etc. or use coupling agent with high viscosity for that.
  • Rough machined surface The regular fine slots on rough machined (by such machines as lathe or planer) surface will also cause error in measurement. The way for compensating that is the same as that in 5.2. In addition, by so adjusting the included angle between the probe's crosstalk interlayer plate (the metallic layer passing through the center of probe bottom) and the fine slots of the object that the interlayer plate is perpendicular or parallel to the fine slots, and by taking the min. value of the readouts as the measured thickness, one can also get better results.
  • Measuring cylindrical surface When measuring cylindrical material, such as pipes, oil tubes, etc., it is very important to select properly the included angle between the probe's crosstalk interlayer plate and the axial line of the material to be measured. Briefly to say, first couple the probe with the material to be measured, make the probe's crosstalk interlayer plate be perpendicular or parallel to the axial line of the object, shake the probe vertically along the axial line of the object, the readouts displayed on screen will change regularly. Select the min. readout from displayed ones as the accurate thickness of the object.
    The standard for selecting the included angle between the probe's crosstalk interlayer plate and the axial line of the object is depending on the curvature of it. For a pipe with large diameter, the probe's crosstalk interlayer plate should be perpendicular to the axial line of the object; for a pipe with small diameter, one can measure with the probe's crosstalk interlayer plate being both parallel and perpendicular to the axial line of the object, and take the min. readout as the thickness.
Selecting Probes

Probe Frequency Measuring range Min. area Ø Application
5PØ10 5MHz 1.2mm~225.0mm (steel) 12mm General Straight probe
5PØ10/90o General bent probe
7PØ6 300 7 MHz 0.75mm~25.0mm (steel) 7.6mm thin work piece
ZW5PØ10 5 MHz 0.75mm~25.0mm (steel) 14mm high temperature

Ultrasonic Thickness Tester TT-100
PRECISE make TT 100 Ultrasonic Thickness Tester Gauge. TT100 gauge. Is used to monitor all types of pipes and pressure vessels for loss of thickness due to corrosion or erosion. Precise measurement on various types of raw materials, component parts, and assembled machinery. Specifically designed for measuring thickness of metallic and non-metallic materials - steel, aluminium, ceramics, glass plastics etc. This unit is fully calibratable, it also stores sound velocities for 5 different materials that can be pre-set, and 10 thickness readings can be stored in the memory.

Features :
  • Under the known thickness of the complex and unknown materials, it can anti-tests the accurate velocity;
  • Set up the upper and lower tolerance, auto alarm if exceed;
  • State prompt function;
  • Suitable for measuring the thickness of metal (steel, cast iron, aluminum, copper etc) plastic, ceramics, glass, and glass fiber etc.
  • Can be equipped with many different frequencies, different chip sizes of double crystal probes;
  • Zero and two calibrations, it can correct system errors automatically;
  • Coupled with state prompt function;
  • With backlight LCD display, easy to use under the dark environment;
Metals (m/sec)

Aluminium 6260 Gold 3240 Nickel 5630 Tin 3230
Brass 4640 Inconel 5720 Platinum 3960 Titanium 6070
Cast Iron 4500 Iron 5900 Silver 3600 Tungsten Carbon 5650
Copper 4700 Lead 2200 Steel ,mild 5900 Tungsten 5400
Cadmium 2800 Manganese 700 Steel,low carbon 5850 Zinc 4200
Chromium 6200 Magnesium 6310 Steel, stainless 5790 Zirconium 4650

Non Metals (m/sec)

Acrylic Resin 2730 Ice 3980 Polyamide 2380 Rubber (butyl ) 1900
Aluminium oxide 8700 Neoprene 1600 Polyethylene 900 Rubber (Soft) 1450
Ceramic 5631 Nylon 2620 Polyurethane 900 Rubber (Vul) 2300
Diamond 17500 Paraffin 2200 Polystyrene 2400 Silicone rubber 948
Epoxy resin 2650 Perspex 2850 Porcelain 5600 Teflon 1350
Gloss 5440 Plexi glass 2700 PVC 2400 Water (20'C) 1480

Technical Details

Materials All homogeneous materials which allow transmission of Ultrasonic energy through it like most of metals, hard plastics, glass, ceramics etc.
Measuring Range 0.70 to 250mm ( Least Count 0.10 and 0.01mm )
Probe Dual crystal
Key Pad Sealed tactile type.
Velocity 1000 m/s to 9999 m/s.
Display 4" Digital with LCD type with Backlight. It displays Thickness, Velocity, Battery checks, Coupling.
Least Count 0.10mm
Accuracy 0.10mm up to 50mm and 1.5% above
Calibration One step calibration for steel ( 4mm Test Block)
Battery 2 x1.5 V Battery
Operating time 250 working hours
Low Battery Indicator Blinking LCD Reading
Auto Power off Yes
Size mm 126(H) x 68(W) x 23(D).
Sudershan Measuring & Engineering (P) Limited.

Ultrasonic Thickness Tester UTG-111A
Key Features
  • Ulstranic measures thickness .
  • Various material (metal/glass/plastics/pottery and other materials) optional .
  • Ultrasonic velocity adjustable .
  • Measuring velocity function .
  • Thickness unit mm/inch convertible .
  • Coupling indication .
  • Build in a metal piece for calibration .
  • Low battery voltage indication.

  • According to European union's CE safety norms .
  • Ultrasonic frequency: 5MHz .
  • Digital display: 4 digitals. .
  • Measuring range: 1.2mm~225mm(steel) .
  • Pipe measures: minimum dia. 20*3mm(steel) .
  • Velocity range: 1000~9999 meter/second .
  • Resolution: 0.1 mm. .
  • Accuracy: ±(1%H+0.1mm) .
  • Response time: 0.5 S .
  • Operating temperature: 0~40 °C .
  • Operating humidity: 10 to 90%RH
Accessories include
  • Free ultrasonic sensor included
  • Free 1.5V x3AAA batteries
  • Free protective carrying case
  • Free Wrist Strap/String
  • User's Manual

Ultrasonic Thickness Gauge TT 100 ( TIME GROUP )
  • Portable size and easy operation
  • Suitable for any metallic and non-metallic materials ultrasonic can go through
  • Self-compensating of nonlinearity function is supplied for correction of pickup nonlineasity
  • 10 measuring values recorded
  • Optional 2.5MHz, 5MHz and 7MHz transducers are available
  • Clear 4-Digit LCD display with backlight
  • 5 pre-set sound velocities for repeating applications
  • mm / inch selectable

Technical Details :
TT100 TT110 TT120 TT130
Measuring range 0.75 -300.00mm (steel)
Measuring range for steel pipes Ø 20 3.0mm
Diameter of transducer Ø 10 (standard) Ø 6 (optional) Ø 12(optional)
Display resolution 0.1mm 0.01mm
Calibration 4.0mm steel base plate integrated
Tolerance ± (1%H+0.1) mm (H means the thickness of tested piece)
Measuring units mm/inch
Sound velocity range 1000-9999m/s 5900 m/s 1000-9999m/s
Display 4-Digital LCD with backlight 4-Digital LCD
Surface temperature -10oc to +60 oc -10 oc to +300 oc -10 oc to +60 oc
Battery indicator Low battery voltage indication
Power supply 2 Pcs. AA batteries 1.5V
Working time 250 hours
Dimensions 126mm X 68mm X 23mm
Weight Approx. 250g including batteries
Packing Plastic Box
Guarantee 6 Months
Calibration Optional

Belt Tension Gauage

Belt Tension Gauge
Application :
Technical Details :
Measuring range 0-750N | 0-120lb | 0-77Kg | 0-114Seems
Accuracy ±5%
Belt state indication Low,OK,Hi
Resolution ±1N (or1 least significant digit of other units)
Belt width 36mm
Overload alarm 750N
Max. load 850N
Auto power off
Pc interface RS-232C
Power supply 4×1.5V AAA(UM-4)
Operating condition 0 ~ 50?,< 85% RH
Dimension 135×62×33mm (5.3×2.4×1.3inch
Net weight 335g(not including batteries)
Optional Accessories Cable and Software for RS-232 and USB
Packing Plastic Box
Guarantee 6 Months
Calibration Optional