Detailed Calibration

is for calibrating the sound card input sensitivity. This must be done before calibrating the Transducer sensitivity.

should be turned on if you are using an external pre-amplifier. Type the amplifier gain in the edit box. If you want to determine the amplification of the pre-amplifier, we suggest that you do this manually by plotting the frequency response of the measurement system with and without the pre-amplifier. Note that the sound card calibration and the pre-amplifier gain and status (checked/unchecked) must be correct in order to get a correct calibration of the transducer sensitivity.

the transducer sensitivity of your transducer may be given by the manufacturer, then you may type this value in the edit box. You may also measured the transducer sensitivity by clicking the button. However, you should first click the button to set the correct calibration settings. You must also make sure the Amplifier Gain and Sound card conversion settings are correct.