Variable Frequency
AP300 Series
Band Pass - Band Reject Filter/Amplifier
Model AP300
Simultaneous Bandpass and Band Reject output for any input signal in
the frequency range of 0.1 Hz to 10,000 Hz. Both frequency and bandwidth
can be varied continuously. Units can be cascaded for staggered filtering
effects. The Bandpass Function. The filter singles out any particular band
of frequencies. Gain is preserved at the center frequency of the passband
over the complete frequency and bandwidth ranges. A preamplifier stage makes
it possible to use the Bandpass output as a tuned amplifier. The Band Reject
Function. The filter rejects any particular band of frequencies. Constant
gain is preserved throughout the passband over the complete frequency and
bandwidth ranges. A large attenuation is provided at the center frequency
of the reject band. Maximum Band Reject effect is achieved by adjusting
the Null adjust. The preamplifier stage enables unusually low level signal
rejection. The Notch Gain Amplifier permits the adjustment of the signal
level output independently of the Bandpass Function output.
APPLICATIONS:
Noise reduction in signal processing. Rejection of carrier modulation
or line frequency interferences, spectrum analysis.
FIELDS OF APPLICATION:
Sound, Vibration, Physiological measurements. Signal conditioning prior
to computer processing. |
Features include:
- One potentiometer sweeps one frequency decade (total
coverage up to 5 decades)
- Fine frequency adjustment
- One potentiometer controls Q (Bandwidth)
- Input amplifier with variable gain up to x 100 to
place signal in optimum dynamic range
- Input signal range from 10 microvolts
to ±12 Volt peak
- Zero phase shift at center frequency
- Output D.C. adjustment for zero offset
- Simultaneous Band Reject and Band Pass outputs
- $695.00 EACH
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