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 […]
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.
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
|
Copyright - 2024 - Hoskin Scientific