19
Stress
Force per unit area
Synchronous
Frequency components that are an integer multiple of
running speed
Transducer
A system consisting of a sensor and signal conditioner
to convert a physical quantity into an output for display,
monitoring and analysis
Transmission Path
The path from source (excitation) to sensor
Trending
The plot of a variable over time used as an indicator of
change
Velocity
A vector quantity of the time rate change of displacement
D = 19.10 x 10
3
x (V/F)
D = 70.4 x 10
6
x (A/F
2
)
V = 52.36 x 10
-6
x D x F
V = 3.68 x 10
3
x (A/F)
A = 14.2 x 10
-9
x D x F
2
A = 0.27 x 10
-3
x V x F
where:
D = Displacement (mils peak‑to‑peak)
V = Velocity (in/s zero‑to‑peak)
A = Acceleration (in/s
2
zero-to-peak)
F = Frequency (CPM)
19.0
VIBRATION CONVERSIONS
