Rion VA-11 User Manual

Specifications
92
Time window function Rectangular, Hanning, flat-top
Frequency span 100, 200, 500, 1 k, 2 k, 5 k, 10 k, 20 kHz
Anti-aliasing filter 100, 200, 500, 1 k, 2 k, 5 k, 10 k, 20 kHz
14th-order anti-aliasing filter
Attenuation: -85 dB at frequency span × 1.56 frequency
point
Frequency zoom ×2, ×4, ×8
Average processing
Time waveform Instantaneous value
Spectrum
Instantaneous value: FFT processing result without averaging,
continuous processing without end point
Exponential averaging: Exponential average value
Y
n
= Y
n-1
- (Y
n-1
-X
n
)/N
Y
n
: current averaging value
Y
n-1
: previous (frame) averaging value
X
n
: Processing result for each frame
N: Averaging count (1 to 1023)
Continuous processing without end point
Linear averaging: Linear averaging value
Y
n
= Σ X
n
/ N
Y
n
: current averaging value
X
n
: Processing result for each frame
N: Averaging count (1 to 1023)
When specified averaging count is com-
pleted, processing is carried out. No further
processing until restart.
Peak hold: Maximum value for each frequency of
specified FFT processing cycles (1 to 1023)
When specified averaging count is com-
pleted, processing is carried out. No further
processing until restart.

Rion VA-11 Specifications

General

Brand	Rion
Model	VA-11
Category	Measuring Instruments
Language	English