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Home > Products > Optical Tables and Vibration Control > Technical Reference > Technical Reference Guide

Technical Reference Guide
Technical Reference Guide


Product Detail Drawings Catalog PDF
Product Detail

This technical reference details acceleration, displacement, frquency, compliance and presure, temperature along with conversion charts.

Conversion Charts

Sinusoidal Motion (zero-peak)
    Displacement (D)
(in.)
 Velocity (V)
(in./sec)
 Acceleration (A)
(g)
 Displacement (D)
(in.)
    D = 0.159 V/f  D = 9.78 A/f2
 Velocity (V)
(in./sec)
 V = 6.28 fD     V = 61.4 A/f
 Acceleration (A)
(g)
 A = 0.102 f2D  A = 0.0163 fV   

f = frequency, Hz

Sinusoidal Wave Forms Multiplier x (A = xB)
       B
       Peak  Peak to Peak  RMS  Average
 A  Peak  1  0.5  1.414  1.570
 Peak to Peak  1  1  2.828  3.140
 RMS  0.707  0.354  1  1.110
 Average  0.637  0.319  0.901  1



Average Value = 0.637 x Peak Value
RMS Value = 0.707 x Peak Value
Peak Value = 1.414 x RMS Value
Peak to Peak Value = 2 x Peak Value
Peak to Peak Value = 2.828 x RMS Value


Acceleration

1 g = 32.174 ft/sec2

1 g = 9.807 m/sec2

in./sec2 = 0.0254 m/sec2

Displacement

1 mil = 0.001 in.

1 mil = 0.0254 mm

1 in. = 25.4 mm

1 cm = 10 mm

Frequency

1 Hz = 1 cps

1 Hz = 0.159 rad/sec

1 Hz = 60 rpm

1 rpm = 0.0167 Hz

1 rpm = 1 cpm

Compliance and Pressure

mm/N = in./lb x 5.7

in./lb = mm/N x 0.175

psi = kg/cm2 x 14.223

kg/cm2 = psi x 0.0703

psi = Pascal (Pa) x 1.45 x 10-4

Pascal = psi x 6895

Pascal = kg/cm2 x 9.8 x 104

Weight

1 oz = 28.35 grams

1 kg = 2.205 lbs

1 N = 0.2245 lbs

Temperature
 °C  °F
 -50  -58
 -40  -40
 0  32
 25  77
 80  176
 120  248
 200  392
 260  500


Environmental Noise Sources



Typical properties of materials used for table construction
    Density
lb/in3 (103kg/m3)
 Young’s Modulus
106 psi (GPa)
 Shear Modulus
106 psi (GPa)
 Thermal Expansion Coefficient
10-6/°F (10-6/°K)
 Thermal Conductivity
BTU/hr-ft-°F (W/m-°K)
 Specific Heat
BTU/lb=°F
(103 J/kg-°K)
 Ferromagnetic Materials
 Carbon Steel  0.28 (7.8)  29.0 (200)  11.0 (76)  5.6 (10)  26 (45)  0.11 (0.46)
 400-Series Stainless Steel  0.28 (7.8)  29.0 (200)  11.0 (76)  5.6 (10)  14 (24)  0.11 (0.46)
 Super Invar at 20°C  0.29 (8.0)  21.5 (148)  8.7 (60)  -0.1 (-0.2)
at 50°C approx. 0
 6 (10)  0.12 (0.50)
 Cast Iron  0.26 (7.2)  15.2 (105)  6.1 (42)  6.0 (11)  28 (48)  0.13 (0.54)
 Nonferromagnetic Materials
 300-Series Stainless steel  0.29 (8.0)  29.0 (200)  12.5 (86)  9.2 (16.6)  9 (16)  0.12 (0.50)
 6061-T6 Aluminum  0.10 (2.8)  9.9 (69)  3.8 (26)  13.0 (23)  96 (166)  0.21 (0.88)
 Granite  0.10 (2.8)  7.0 (48)  3.0 (21)  4.0 (7)  2 (3.5)  0.20 (0.84)
 Concrete  0.09 (2.5)  3.0 (21)  1.3 (9)  8.0 (14.4)  0.5 (0.9)  0.16 (0.67)

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