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Wiring diagram of a dielectric heater

Description

Sub-ClassGlassineTypeNegative - Glassine (75 x 105 mm)Date of originalNo dateDescriptionA wiring diagram of a dielectric heater.

Dialectric heating is the heating of a nominally electrical insulating material due to its own electrical (dielectric) losses, when the material is placed in a varying electrostatic field. The material to be heated is placed between two electrodes (which act as capacitor plates) and forms the dielectric component of a capacitor. The electrodes are connected to a high-voltage source of 2-90-MHz power, produced by a high-frequency vacuum-tube oscillator. The resultant heat is generated within the material, and in homogeneous materials is uniform throughout. Dielectric heating is a rapid method of heating and is not limited by the relatively slow rate of heat diffusion present in conventional heating by external surface contact or by radiant heating.

Relates to a trial undertaken by Mr Whittlestone.
Size of original7.5 x 10.5 cm Last edited by: Paul Staincliffe

CreatorWestor, F. L.ColourB&W Last edited by: Paul Staincliffe

LanguageEnglish

Depicts or relates to

KeywordMachinery Last edited by: Paul Staincliffe

Technology Last edited by: Paul Staincliffe

Diagrams

Subject - PersonWhittaker, Mr Last edited by: Paul Staincliffe

Administration

FormatTIFFDate of digital19th May 2014Technical descriptionEquipment: PhaseOne P65+
Software used: Adobe Photoshop CC
Dimensions: H 3371 x W 5000 pixels
Horizontal resolution: 500 dpi
Vertical resolution: 500 dpi
Bit depth: 24
Uncompressed
Resolution unit: 2
Colour representation: Uncalibrated
Exposure program: Manual
Photometric interpretation: RGB
EXIF version: 0220
F-stop: f/11
Exposure time: 1/25 sec
ISO: 100
Exposure bias: 0 step
Focal length: 120 mm Last edited by: Paul Staincliffe

Location of hard copyRUA-Annex Last edited by: Paul Staincliffe

Original file namene-3-0001

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