csBender

Wave Setup

Specimen Setup

You can input the Specimen Height and Bulk Density but when inputting the specimen height, be careful to allow for the amount of the Transmit and Receive piezoelectric elements that are inserted into the sample, as the distance to be used in the calculation of GMax will be the tip to tip distance travelled by the wave.

Test Setup

You can setup the Waveform Shape (either Sinusoidal, Triangular or Square), the Pulse Frequency and the Amplitude.

Test Setup (cont.)

The Acquisition Method will be the name given to the Bender Scope and the Capture Window Span value determines how many possible cycles will be captured (dependent upon the Pulse Period).

The Receiver Amplification and Sampling Resolution are best left at their maximum values but may be changed if you require.

If the first captured wave is found to be 180° out of phase, a checkbox can be ticked in order to correct subsequent wave captures automatically. If a number of measurements are to be taken, the number and frequency can be set up.

The Low-Pass Filter parameters can be adjusted to decrease the amount of received noise using a smoothing algorithm. The values must either all be zero or a value of ten summed together.

Live Test Views and Tables

A Live Test View and Table are available should they be required. They display the mV values of the Transmit and Receive signals, however a graph is the most convenient way to visualise and measure the data.

Live Graphical Views

The selected wave (Horizontal or Vertical S-Wave or P-Wave) is captured and displayed on the Graphical view, providing an instant view of the wave.

Successive waves are stored and a list of all saved captured waves can be displayed, allowing you to select the best ones in order to ‘average out’ an optimum transmit and receive wave for measurement.

The GMax value can be calculated using the cursors on the peaks of the transmitted and received waves.

The graph can easily be manipulated to select the highest amplitude values to obtain the time difference between  waves. Cursor options on the graph are available to calculate the GMax value automatically.

Data Export and Import

Clisp Studio has the ability to export the entire Test to MS Excel for further data manipulation. The Test can also be exported to a script file which can be imported when creating a new Test if desired. This enables Tests from the current or older versions of Clisp Studio to be cloned or even rerun if required.This facility is extremely useful for Test exchange between laboratories or investigation of an issue by VJ Tech.