Q4- A barometer dial (atmospheric air Pressure sensor) has the following specifications: Pmin = 940 [mbar] Pmax = 1060 [mbar] A8 = 320 [deg] 1000 1010 990 980 Assuming the device is constructed, as shown, from: • A cylindrical piston with a diameter 6 d == (cm]. A rack with an 8 [teeth/cm] pitch. 940 mbar 1060 A pinion gear-A with 15 (teeth] A pinion gear-B with Ng [teeth] 1030 1020 OPor 950

Elements Of Electromagnetics
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Q4- A barometer dial (atmospheric air Pressure sensor) has the following specifications:
Pmin = 940 [mbar]
Pmax = 1060 [mbar]
1000
1010
990
A0 = 320 [deg]
Assuming the device is constructed, as shown, from:
• A cylindrical piston with a diameter
6
d :
[cm).
940
mbar
1060
A rack with an 8 [teeth/cm] pitch.
• A pinion gear-A with 15 [teeth]
• A pinion gear-B with Ng [teeth]
At nominal conditions:
P. = 1000 [mbar]
V. = 149.46 [cm³]
А В
If the dial is connected directly to pinion gear-B;
a) Calculate the required value for Ng ?
b) Why do we need to use two pinion gears instead
of one ?
Hint: Boyles' Law P,V = constant
d
1030 OPor
1020
1050
086
960
950
Transcribed Image Text:Q4- A barometer dial (atmospheric air Pressure sensor) has the following specifications: Pmin = 940 [mbar] Pmax = 1060 [mbar] 1000 1010 990 A0 = 320 [deg] Assuming the device is constructed, as shown, from: • A cylindrical piston with a diameter 6 d : [cm). 940 mbar 1060 A rack with an 8 [teeth/cm] pitch. • A pinion gear-A with 15 [teeth] • A pinion gear-B with Ng [teeth] At nominal conditions: P. = 1000 [mbar] V. = 149.46 [cm³] А В If the dial is connected directly to pinion gear-B; a) Calculate the required value for Ng ? b) Why do we need to use two pinion gears instead of one ? Hint: Boyles' Law P,V = constant d 1030 OPor 1020 1050 086 960 950
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