You are working at an aircraft manufacturing plant on an altitude sensor that eventually will be used to retrofit dozens of similar sensors on an upgrade to a current airframe.

You are required to find a quality notch filter to eliminate an undesirable interference at 400 Hz. You find a vendor and ask for a suitable product specification and a bid.

The specifications you require are:

1. Must block signals at 400 2% Hz 2. Pass-band gain should be 0 dB 1 dB.

3. Bandwidth should be 20 Hz 5% Hz The vendor’s proposal, shown as an OrCAD drawing in Figure P14–55, claims to meet all of the design requirements.

Determine if it passes all of the stated requirements. Then explain if you would buy the filter and why or why not?

Transcribed Image Text:

R1 C1 w HH 625 16n R3 ww 1 Vac 0 Vdc V1 1.25 k C2 16n 1MEG R4 R2 w 1MEG OUT OPAMP A Notch Below filters, Inc $89.00ea $72.00ea 100 or more filter model # N3.0 FIGURE P14-55