Presentation is loading. Please wait.

Presentation is loading. Please wait.

Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer.

Similar presentations


Presentation on theme: "Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer."— Presentation transcript:

1 Visualizing Radio Waves

2 What is this?

3 Austin Rings Mystery 117 V isolation transformer

4 Primary Secondary Austin Rings Mystery 117 V isolation transformer

5 Primary Secondary

6 Primary Secondary Primary turns wound around toroidal core

7 The turns of the secondary are this diameter. Primary Secondary

8 Primary turns wound around toroidal core The turns of the secondary are this diameter. No core in here. Primary Secondary

9 Primary turns wound around toroidal core The turns of the secondary are this diameter. No core in here. Primary Secondary the core for both is this

10 magnetic flux is within core (primary turns) (secondary turns)

11 (primary turns) (secondary turns) If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary? magnetic flux is within core

12 (primary turns) (secondary turns) magnetic flux is within core There is nothing you can place in this area which would reveal a field. If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary?

13 How We Were Taught That a field expands around and collapses around the coil.

14 If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary?

15 It’s not so obvious, but even when close wrapped, the flux does not touch any of the wire.

16 If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary? It’s not so obvious, but even when close wrapped, the flux does not touch any of the wire.

17 Answer… If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary?

18 Answer… If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary?

19 Answer… a circulating electric field If the changing magnetic flux is contained within the core… what in heaven’s name carries the power out to the secondary?

20 Answer… a circulating electric field something rarely taught

21 It is a special kind of E field, an E-field that doesn’t radiate. Answer… a circulating electric field something rarely taught

22 It is a special kind of E field, an E-field that doesn’t radiate. It has curl and no divergence. Answer… a circulating electric field something rarely taught

23 Any attempt to measure this kind of electric field with an antenna would fail. A

24 A

25 A Unless…

26 A Any attempt to measure this kind of electric field with an antenna would fail. Unless…

27 A Any attempt to measure this kind of electric field with an antenna would fail. Unless… the measurement involves going through the opening.

28 A Any attempt to measure this kind of electric field with an antenna would fail. Unless… the measurement involves going through the opening.

29 A Any attempt to measure this kind of electric field with an antenna would fail. Unless… the measurement involves going through the opening.

30 A Efficiency is not affected by the looseness of the wind. Any attempt to measure this kind of electric field with an antenna would fail. Unless… the measurement involves going through the opening.

31 Austin Rings mystery shows how poor our models are.

32 Models seem to have as their purpose, an aid to explain the math. Austin Rings mystery shows how poor our models are.

33 Models seem to have as their purpose, an aid to explain the math. That the E-field can circulate and few teachers explain when and why. Austin Rings mystery shows how poor our models are.

34 Models seem to have as their purpose, an aid to explain the math. That the E-field can circulate and few teachers explain when and why. That the fields do not collapse around a coil, they just get stronger and weaker Austin Rings mystery shows how poor our models are.

35 The Fields of a Transformer are not Radiating Fields

36 A nothing

37 The Fields of a Transformer are not Radiating Fields nothing A The magnetic field is entirely contained in the core

38 The Fields of a Transformer are not Radiating Fields electric field A nothing The magnetic field is entirely contained in the core

39 The Fields of a Transformer are not Radiating Fields electric field A The magnetic field is entirely contained in the core nothing

40 The Fields of a Transformer are not Radiating Fields electric field The electric field is the kind that circulates A The magnetic field is entirely contained in the core nothing

41 The Fields of a Transformer are not Radiating Fields electric field magnetic field

42 The Fields of a Transformer are not Radiating Fields electric field magnetic field If there’s no load on the secondary, the primary has high impedance. It becomes a choke.

43 The Fields of a Transformer are not Radiating Fields electric field magnetic field If there’s no load on the secondary, the primary has high impedance. It becomes a choke. air core choke

44 The Fields of a Transformer are not Radiating Fields

45

46

47

48

49 A

50 Can now be used to couple with the field A

51 And Now: Radiating Fields A Can now be used to couple with the field

52 And Now: Radiating Fields A A radiating field sends away power, whether there is a load there or not. Can now be used to couple with the field

53 And Now: Radiating Fields Fraunhofer Region A Can now be used to couple with the field

54 And Now: Radiating Fields Fraunhofer Region A Fresnel Region Can now be used to couple with the field

55 electric field Fraunhofer RegionFresnel Region A Can now be used to couple with the field

56 Radiating Fields

57 The Most Important Difference: If there’s no receiver for the EM wave the power is radiated anyway.

58 Radiating Fields The Most Important Difference: If there’s no receiver for the EM wave the power is radiated anyway. Whereas for the transformer, if there’s no load the power doesn’t come out.

59 Radiating Fields The Most Important Difference: If there’s no receiver for the EM wave the power is radiated anyway. Whereas for the transformer, if there’s no load the power doesn’t come out. Tesla was hoping there was a way to have both.

60 Fields do not collapse and expand, they just get stronger and weaker. Radiating Fields

61 Fields do not collapse and expand, they just get stronger and weaker. There is nothing that “flows” in spite of the word “flux”. Radiating Fields

62 Sound Waves in a Solid

63

64 Compression Wave

65 Sound Waves in a Solid Shear Wave

66 There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

67 There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

68 activity is  but energy goes There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

69 measurable intensity There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

70 measurable intensity not There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

71 this is polarization There’s any number of orientations the “S” wave can move. Sound Waves in a Solid

72 polarization is only possible if vibrating transversely Sound Waves in a Solid

73 polarization is only possible if vibrating transversely Fields do not collapse and expand, they just get stronger and weaker. Sound Waves in a Solid

74

75 Sound Waves in a Liquid

76 Cannot Support Polarization Sound Waves in a Liquid

77 Cannot Support Polarization Sound Waves in a Liquid

78 Cannot Support Polarization Sound Waves in a Liquid A liquid cannot support a force called a “shear force.

79 Cannot Support Polarization Sound Waves in a Liquid

80 Cannot Support Polarization Longitudinal Waves Sound Waves in a Liquid

81 Longitudinal Waves

82

83 activity is  but energy goes Transverse Waves Do Support Polarization

84 the medium has to be rigid to support polarization activity is  but energy goes it has to be able transmit a shear force Transverse Waves Do Support Polarization

85 the medium has to be rigid to support polarization it has to be able transmit a shear force Transverse Waves Do Support Polarization

86 the medium has to be rigid to support polarization it has to be able transmit a shear force

87 the medium has to be rigid to support polarization Electric Waves Have Polarization Therefore they must be: it has to be able transmit a shear force

88 Electric Waves Have Polarization Therefore they must be: transverse and the medium has to be rigid to support polarization it has to be able transmit a shear force

89 Electric Waves Have Polarization Therefore they must be: transverse and travel through something rigid the medium has to be rigid to support polarization it has to be able transmit a shear force

90 Electric Waves Have Polarization Therefore they must be: transverse and travel through something rigid energy is not because of motion energy gets stronger and weaker the medium has to be rigid to support polarization it has to be able transmit a shear force

91 demo

92 The Spinning Bargraph Shows What an EM Wave Looks Like Rotationally

93 Now for a Longitudinal View The Spinning Bargraph Shows What an EM Wave Looks Like Rotationally

94 An EM wave is said to be transverse

95 this does not mean that something has to move transversely

96 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction

97 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction it gets weaker and stronger

98 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction it gets weaker and stronger this construct is used because it is so hard to show something that gets weaker and stronger

99 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction it gets weaker and stronger this construct is used because it is so hard to show something that gets weaker and stronger units are V / cm

100 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction it gets weaker and stronger this construct is used because it is so hard to show something that gets weaker and stronger The length of the sensing element has nothing to do with the extent of the wave. units are V / cm

101 An EM wave is said to be transverse this does not mean that something has to move transversely it exists in a dimension that is transverse to its direction it gets weaker and stronger units are V / cm where this unit has a “direction”

102 units are V / cm Fills space with an infinitely fine grain another way to view it

103 where this unit has a “direction” units are V / cm Fills space with an infinitely fine grain another way to view it this way: nothing

104 horizontal where this unit has a “direction” units are V / cm Fills space with an infinitely fine grain another way to view it this way: nothing

105 horizontal units are V / cm another way to view it Fills space with an infinitely fine grain array of batteries

106 horizontal units are V / cm Fills space with an infinitely fine grain array of batteries another way to view it

107 units are V / cm Fills space with an infinitely fine grain array of batteries

108 units are V / cm Fills space with an infinitely fine grain array of batteries

109 units are V / cm To visualize this we need to “strobe” it. Fills space with an infinitely fine grain array of batteries

110 Stroboscope

111 source

112

113

114

115

116

117

118

119

120

121

122

123

124

125 The Basic Interferometer source detector

126 The Basic Interferometer source detector mirror partial mirror moving mirror

127 source path 1 detector

128 source path 2 detector

129 source path 1 path 2 detector

130 source detector

131 source from moving mirror from fixed mirror

132 source detector

133 source detector

134 source detector

135 source detector

136 source detector

137 source detector

138 source detector

139 source detector

140 source detector

141 source detector

142 source detector

143 source detector (both waves are moving)

144 source detector

145 source detector

146 source detector

147 source detector

148 source detector

149 source detector

150 source detector

151 source detector

152 source detector

153 source detector

154 source detector

155 source detector

156 source detector

157 source detector

158 source detector

159 source detector

160 source detector

161 source detector it doesn’t matter where our detector is

162 source it doesn’t matter where our detector is detector

163 source it doesn’t matter where our detector is detector

164 source detector

165 source detector

166 source detector

167 source detector

168 source detector

169

170

171 source detector

172 source detector any object

173 source detector improved

174 source detector improved

175 source detector more sensitive because no limit on the power improved

176 Interferometer

177 Motion Sensor

178 end

179 compels one to believe in an electrically rigid medium. the medium has to be rigid to support polarization it has to be able transmit a shear force Electric Waves Have Polarization Therefore they must be: transverse and travel through something rigid energy is not because of motion

180 compels one to believe in an aether. the medium has to be rigid to support polarization it has to be able transmit a shear force Electric Waves Have Polarization Therefore they must be: transverse and travel through something rigid energy is not because of motion


Download ppt "Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer."

Similar presentations


Ads by Google