ULTRASONIC PULSE VELOCITY METER

Description

model: PT202

 Propagation velocity of a mechanical pulse in a material depends on several parameters including material density and its elastic properties. These parameters in turn, are related to the material’s mechanical properties such as quality, homogeneity and strength.

The Ultrasonic Pulse Velocity Meter Model PT202 is a cost effective, reliable and accurate instrument for measuring the speed of sound in a given sample of rock, concrete, ceramic, wood, plastic etc. and covers all the requirements of ASTM C597 standard.

Applications

• Evaluation of Homogeneity of a Material
• Detection of Voids, Cracks or other Defects
• Evaluation of Concrete Aging and Changes Over Time

 

Test Method

In ultrasonic pulse velocity testing two transducers are connected to the facets of a sample using a couplant gel. The transmitting device generates a mechanical pulse wave. This wave propagates through the sample and is received by the other transducer. The instrument measures this propagation time also known as time of flight (TOF). Knowing the length of the sample and the time of flight, ultrasonic

The PT202 can be used with transducers with a variety of operating frequencies. The best testing frequency depends on material type and its grain size. For concrete, 54 kHz P Wave transducers and180 … 250kHz S – wave transducers have proven to be the most efficient. The transducer body is designed to tolerate mechanical pressure for testing samples under axial force. The Basic configuration of PT202 comes with a couple of 54 kHz P-Wave transducers.

Specifications

Parameter	Range
Timing Range	0.2-10000 µs
Timing Resolution	0.2 µs
Max Sample Count	65535
Pulse Voltage	100…500V
Receiver Amplifier Bandwidth	20…500kHz
Receiver Amplifier Gain	1X – 10,000X (0-80dB) 9 steps
Battery	Lithium Polymer, 3.7 V  5 Ah
Batter Life	>5h
IP Classification	IP 54
Memory	8 GB Flash memory
Display	4.3” Color LCD, 480 x 272 pixels
Dimensions	22.8cm X 15.1 cm X 5cm
Weight	500 gr.

 

Features

• Pulse Repetition Rate, Timing, Count and Intensity Adjustable by User

• Hold Key for Freezing the Waveform Display
• Easy Length Velocity/ /Time Period Input Settings

• Operating Modes:

• Pulse Velocity Transmission Time / Distance

• Line Scans

• Compressive Strength