Research Article

Accurate QTF Sensing Approach by Means of Narrow Band Spectral Estimation

Table 1

Component list for the circuit in Figure 5.

ComponentTypeValue

Instrumentation amplifierIF3601
, Operational amplifiersOP27
QTF under test
, 0.1% metallic film resistor200 kΩ
Multi turn trimmer20 kΩ
1% resistor10 kΩ
Polyester, 66 V4.7 μF
1% resistor10 kΩ
Polyester, 66 V1 μF
1% resistor10 MΩ
1%100 pF
0.1% metallic film resistor1 kΩ
0.1% metallic film resistor10 kΩ