Johnson Matthey Inc.

Atraverda Limited

Johnson Matthey Public Limited Company

Elcometer, Inc.

Thomas Partington

Peter Jackson

Paul David Featonby

Michael Carrington Sellars

Benjamin Metcalfe

Kenneth James

Andrew Hill

John Hill

Graham Scott Hopper

Jonathan Bouis

Neil James Leonard Bennett

A surface profile measuring instrument (), and method, for measuring the surface profile of a substrate (). The surface profile measuring instrument () comprises an electromagnetic probe (), the electromagnetic probe () comprising a probe tip operable to be brought into proximity with a surface of a substrate () to be measured, a drive unit () operable to generate a low frequency magnetic field penetrating the surface of the substrate (), a pick up unit () operable to detect the strength of the magnetic field and output a magnetic field strength reading and a computation unit () operable to determine a surface profile measurement based on the magnetic field strength reading.

Surface profile measuring instrument and method

Probes are provided with caps, the caps comprise rolling bearing elements so that the probes can be slid along a surface to be measured, without damaging the surface or wearing away the tip of the probe or a sacrificial cap. The rolling bearing elements can be arranged in a ring around the probe tip, with the plane of the foremost edges of the rolling bearing elements a predetermined distance from the probe tip. The caps can comprise a housing with a grip, to encourage users to grip the cap, which comprises the rolling bearing elements, rather than the probe.

Probe and cap therefor

An instrument adapted for the determination of fluid levels within a vessel by the comparison of the density of the fluid along the length of the instrument, said instrument comprising: (i) at least one generally linear source array comprising a plurality of sources of penetrating radiation, shielding and collimation means and a source supporting structure for supporting the sources and shielding and collimation means in a linear array (ii) at least one generally linear detector array comprising a plurality of radiation detectors, supported on a detector support structure, capable of detecting radiation emitted by the sources, and (iii) means to position the source and a respective detector array such that (a) radiation emitted from each of the sources is capable of following a linear path from the source, through the vessel and material to at least a respective one of the detectors forming a part of the respective detector array, and (b) the linear axis of the source array and the linear axis of its respective detector array are substantially parallel to each other (iv) means for analyzing the detector output signals to determine the density of the medium traversed by the beams of radiation in passing from a source to a detector characterized in that the detector support structure and/or its associated electrical circuits and connectors is formed from a plurality of modular portions, each modular portion being adapted to be joined to an adjacent portion to provide a detector array of the required length.

Level measurement system

Disclosed is an instrument for detecting neutron backscatter from an object including a source of neutrons (), a neutron detector () capable of detecting thermal neutrons and a housing () which is impervious to water and having at least one external operating surface () for placing adjacent the object, the source and detector being located within the housing in such a way that the distance between the detector and the operating surface(s) is less than 25 mm and the distance between the detector and any other external surface of the housing is at least 50 mm.

Neutron backscatter instrument

An apparatus and method for the identification of different phases (-) in a multi-phase medium includes at least two arrays (A,B) of ultrasound transducers capable of transmitting and receiving ultrasound through the medium separating them. The method and apparatus is useful for the location of phase interfaces in vessels such as oil separators.

An electrode for a bipolar cell or battery comprises a plate like body made of hardened resin containing particles of titanium suboxide or other electrically conductive particulate arranged to form electrical paths. A method of testing the body for porosity is also disclosed.

Pore free electrode formed of conductive titanium suboxide particles and hardened thermoset resin

An electrode comprises an outer tube containing a spiral inner electrode which surrounds a rod held at its ends by fittings in the ends of the tube.

Growing community of inventors

Leeds, United Kingdom

Thomas Partington