Marketing experts do too! Numbers, the quantitative bottom line on whatever is being measured, go well beyond any subjective analysis of success. Measurements and metrics objectively track how you’re doing, offering clear guidance about when things are working — and when things need to change. ...
Its impedance matches the device internal tuning capacitance value (Ctuning) to create a circuit resonating at 13.56 MHz. The basic equation of the tuning frequency is: ftuning = ---1--- 2Π × Lantenna × Ctuning AN2972 Rev 9 5/26 25 Basic principles and equations 2 Basic principles...
If the excitation frequency is in the vicinity of a natural frequency (say within ±50%), the damping model is of paramount importance, as shown in the response curves in theprevious blog post. This is a case where you really have to spend some effort on obtaining appropriate values of th...
This is similar to what happens when you try to force a sping to move back and forth; if you're not at the correct frequency, then it resists your push, but if you do manage to hit the right frequency, then even a small application of force can quickly increase the amplitude of its...
Since only two measurements are needed, tuning is quick only taking about 14mS total for this portion of the tuning work. Oscillator Offset The second part of the oscillator tuning process involves calculating the correct value for the main DAC, based on the key pressed (e.g., frequency requ...
As force is applied to the sensor, an electric charge is generated which can be measured as a voltage proportional to the pressure. The advantage of piezoelectric sensors is in their high frequency response and high sensitivity to dynamic touch. The nature of piezoelectric materials having very ...
When the RF radiation is turned off, the atoms continue to resonate. Eventually, the resonating atoms return to their natural state and, in doing so, emit a radiofrequency radiation that is an NMR signal. The signal is then processed through a computer and converted into a visual image of ...