Abstract: Disclosed is an induction coil arrangement for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The induction coil arrangement includes a plate having opposite first and second sides, a first flat spiral coil of electrically-conductive material mounted on the first side of the plate, and a second flat spiral coil of electrically-conductive material mounted on the second side of the plate.

Abstract: Disclosed is a method and apparatus for use with an RLC resonance circuit for inductive heating of a susceptor of an aerosol generating device. The apparatus is arranged to determine a resonant frequency of the RLC resonance circuit; and determine, based on the determined resonant frequency, a first frequency for the RLC resonance circuit for causing the susceptor to be inductively heated, the first frequency being above or below the determined resonant frequency. The apparatus may be arranged to control a drive frequency of the RLC resonance circuit to be at the determined first frequency in order to heat the susceptor. Also disclosed is an aerosol generating device including the apparatus.

Abstract: Disclosed is an induction coil arrangement for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The induction coil arrangement includes a plate having opposite first and second sides, a first flat spiral coil of electrically-conductive material mounted on the first side of the plate, and a second flat spiral coil of electrically-conductive material mounted on the second side of the plate.

Abstract: Disclosed is a tubular heating element for use in an apparatus for heating aerosolizable material to volatilize at least one component of the aerosolizable material. The tubular heating element further includes a heating material layer that is heatable by penetration with a varying magnetic field on a tubular support. The tubular heating element has a wall thickness of no more than one millimeter. Further, the tubular heating element can include a protective layer. The heating layer includes a ferromagnetic material based on cobalt or nickel.

Abstract: Disclosed is a method and apparatus for use with an RLC resonance circuit for inductive heating of a susceptor of an aerosol generating device. The apparatus is arranged to determine a resonant frequency of the RLC resonance circuit; and determine, based on the determined resonant frequency, a first frequency for the RLC resonance circuit for causing the susceptor to be inductively heated, the first frequency being above or below the determined resonant frequency. The apparatus may be arranged to control a drive frequency of the RLC resonance circuit to be at the determined first frequency in order to heat the susceptor. Also disclosed is an aerosol generating device including the apparatus.

Abstract: The present invention provides an apparatus for heating an aerosolisable material to generate an aerosol for inhalation by a user. The apparatus comprises a housing containing a first section for receiving an aerosolisable material and a heating arrangement comprising at least one patch antenna for generating a microwave signal for heating the aerosolisable material to generate an aerosol.

Abstract: Disclosed is a tubular heating element for use in an apparatus for heating aerosolizable material to volatilize at least one component of the aerosolizable material. The tubular heating element further includes heating material layer that is heatable by penetration with a varying magnetic field on a tubular support. The tubular heating element has a wall thickness of no more than one millimeter. Further, the tubular heating element can include a protective layer. The heating layer includes a ferromagnetic material based on cobalt or nickel.

Abstract: Disclosed is an article for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The article includes a carrier having plural thermally-conductive portions, on which are locatable respective discrete quantities of smokable material. Between the portions of the carrier, the carrier is shaped to form a thermal barrier for inhibiting heat conduction from one or more of the portions of the carrier towards another of the portions of the carrier in use.

Abstract: Disclosed is an article for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The article includes a carrier having plural thermally-conductive portions, on which are locatable respective discrete quantities of smokable material. Between the portions of the carrier, the carrier is shaped to form a thermal barrier for inhibiting heat conduction from one or more of the portions of the carrier towards another of the portions of the carrier in use.

Abstract: An inductor for use in an aerosol provision device. The inductor includes an electrically-conductive element. The element includes an electrically-conductive non-spiral first portion coincident with a first plane, an electrically-conductive non-spiral second portion coincident with a second plane that is spaced from the first plane, and an electrically-conductive connector that electrically connects the first portion to the second portion.

Abstract: An aerosol provision device having a heating zone for receiving at least a portion of an article including aerosolizable material, an outlet through which aerosol is deliverable from the heating zone to a user in use, and heating apparatus for causing heating of the article when the article is at least partially located within the heating zone to thereby generate the aerosol. The heating apparatus is configured to, during a heating session, cause heating of a first portion of the aerosolizable material to a temperature sufficient to aerosolize a component of the first portion of the aerosolizable material, and heating of a second portion of the aerosolizable material to a temperature sufficient to aerosolize a component of the second portion of the aerosolizable material. The heating apparatus is configured to cause the heating of the first portion before or more quickly than the heating of the second portion.

Abstract: Disclosed is a heating element for use with an apparatus for heating aerosolizable material to volatilize at least one component of the aerosolizable material. The heating element includes a body and at least one retainer. The body is for forming a chamber for receiving the aerosolizable material. The at least one retainer is for restraining movement of the heating element relative to the apparatus when the heating element is installed in the apparatus.

Abstract: An aerosol generating apparatus has a composite susceptor for heating an aerosol generating material in use thereby to generate an aerosol. The composite susceptor comprises a support portion and a susceptor portion supported by the support portion. The apparatus comprises an induction element arranged for inductive energy transfer to the susceptor portion in use; and a driving arrangement arranged to drive the induction element with an alternating current in use thereby to cause the inductive energy transfer to the susceptor portion, thereby to cause the heating of the aerosol generating material by the composite susceptor, thereby to generate the aerosol. The alternating current has a waveform comprising a fundamental frequency component having a first frequency and one or more further frequency components each having a frequency higher than the first frequency. A method of operating the aerosol generating apparatus is also disclosed.

Abstract: Described herein is a method of making an aerosol-forming substrate. The aerosol-forming substrate comprises an aerosol-forming material which comprises nicotine and/or a tobacco material. The method comprises electrospraying the aerosol-forming material or component or precursor thereof.

Abstract: Disclosed is an induction coil arrangement for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The induction coil arrangement includes a plate having opposite first and second sides, a first flat spiral coil of electrically-conductive material mounted on the first side of the plate, and a second flat spiral coil of electrically-conductive material mounted on the second side of the plate.

Abstract: Disclosed is a method and apparatus for use with an RLC resonance circuit for inductive heating of a susceptor of an aerosol generating device. The apparatus is arranged to determine a resonant frequency of the RLC resonance circuit; and determine, based on the determined resonant frequency, a first frequency for the RLC resonance circuit for causing the susceptor to be inductively heated, the first frequency being above or below the determined resonant frequency. The apparatus may be arranged to control a drive frequency of the RLC resonance circuit to be at the determined first frequency in order to heat the susceptor. Also disclosed is an aerosol generating device including the apparatus.

Abstract: Disclosed are methods and an apparatus for determining a temperature of a susceptor of an aerosol generating device, the susceptor being for inductive heating by a RLC resonance circuit. The apparatus is arranged to determine a frequency characteristic of a peak of a frequency response of the RLC resonance circuit, and determine, based on the determined frequency characteristic, the temperature of the susceptor. Also disclosed is an aerosol generating device comprising the apparatus.

Abstract: Disclosed is an article for use with an apparatus for heating smokable material to volatilize at least one component of the smokable material. The article includes a carrier having plural thermally-conductive portions, on which are locatable respective discrete quantities of smokable material. Between the portions of the carrier, the carrier is shaped to form a thermal barrier for inhibiting heat conduction from one or more of the portions of the carrier towards another of the portions of the carrier in use.

Abstract: A method of forming a nano-scale device with a probe such as a STM on a substrate includes the step of rendering the relevant part of the substrate conductive whilst the device is being formed with the probe so that current can flow from the probe to the substrate. Thereafter, to operate the device, the substrate is rendered non-conductive so as to prevent dissipation of current from the device through the substrate. The substrate can be altered in conductivity by cooling to undergo a Mott transition, can be heated from a normally non-conductive condition to become conductive, or subject to laser radiation to induce charge carriers to render it conductive.

Abstract: This invention relates to apparatus for sensing, remotely, the temperature of a semi-conductor wafer and includes means for shining a single frequency light 11 onto the surface 12 of a semi-conductor wafer 13 so that some of that light is scattered. The scattered light is focused by a lens 15 and the single frequency is filtered out of the scattered light by notch filter 17. The filtered beam is split by beam splitter 18 and the resultant two beams are filtered so that they respectively pass only the Stokes and anti-Stokes frequencies respectively. The intensities of these respective light beams are then measured and from these the temperature of the semi-conductor wafer is calculated.