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Ultrasonic Setting Measurement

Schleibinger developed a special ultrasonic unit with an integrated datalogger and a special designed setup for the mortar specimen. The measurement principles of the Vikasonic is this: fresh mortar is setting between two ultrasonic transducers, which are supplied with 0.25s or less pulses per second at a frequency of 54 kHz. The mortar changes, according […]

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Schleibinger developed a special ultrasonic unit with an integrated datalogger and a special designed setup for the mortar specimen.

The measurement principles of the Vikasonic is this: fresh mortar is setting between two ultrasonic transducers, which are supplied with 0.25s or less pulses per second at a frequency of 54 kHz. The mortar changes, according to the setting, the ultrasonic transition time. From the beginning of first contact of the growing binder-stone, the ultrasonic sound speed increases. If there is a complete crystalline structure the change of the sound speed will be slower. Until the a further aggregation of the cement stone it increases again.

● ASTM C 597-83 Standard Test Method for Pulse Velocity through Concrete

Specifications

Transit Time Measurement Range

0.1µs to 65000µs

Frequency

54kHz, others available

Accuracy

+/- 0.1µs

Over Range Indication

shown on the display

Input Sensitivity

Better 250µV

Bandwidth -3db

10KHz .. 1 MHz

Transmitter Excitation Voltage

500V, 750V, 1000V, 1500V

Pulswidth

<= 1µs

Puls Rate

0.25...10 s

Power Supply

Mains or Internal Battery

Mains Input

110V .. 240V 50/60Hz

Battery

Three common AA cells

Display

Liquid Crystal 56mm x 38mm

USB interface

Host interface for a connecting an USB stick (2 sticks included)

Real Time Clock

integrated

Temperature measurement

Type K thermocouple

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