公开(公告)号：US20200060578A1

公开(公告)日：2020-02-27

申请号：US16332399

申请日：2017-09-18

Applicant: TTP Plc

Inventor： David POOLEY ,  Mikhail BASHTANOV

IPC: A61B5/06 ,  G01V15/00 ,  G01V3/10

Abstract: A sensing system for determining the location and orientation of an object which comprises a magnetic tag. The sensing system comprises selection coils and interrogation coils. The selection coils are arranged to generate a spatially-varying DC magnetic field from which the location of the tag can be determined in use. At least some of the interrogation coils are arranged to generate one or more AC magnetic fields and at least some of the interrogation coils are arranged to receive harmonics, intermodulation products or time dependent variations of the AC magnetic fields, from which the orientation of the tag is determined in use.

公开(公告)号：US20180313700A1

公开(公告)日：2018-11-01

申请号：US15769985

申请日：2016-10-18

Applicant: TTP Plc

Inventor： David POOLEY

IPC: G01K7/38

CPC classification number: G01K7/38 ,  G01K2207/06

Abstract: An apparatus for inductive temperature sensing comprises a coil configuration, a target, and an impedance measurement circuit. The target has a non-zero conductivity and susceptibility and the impedance measurement circuit measures the apparent inductance of the coil configuration at a measurement frequency close to the crossover frequency to provide an indication of temperature of the target.

公开(公告)号：US20210039128A1

公开(公告)日：2021-02-11

申请号：US16966168

申请日：2019-01-31

Applicant: TTP Plc

Inventor： Wayne BOWEN ,  David POOLEY

IPC: B05B17/06 ,  B01J19/00 ,  H01L41/09 ,  B01L3/02 ,  B41J2/14

Abstract: An acoustic droplet ejection apparatus comprises an acoustic actuator and a fluid well having abase and at least one side wall. The actuator is arranged to couple acoustic energy into the fluid well through the side wall.

公开(公告)号：US20180369853A1

公开(公告)日：2018-12-27

申请号：US15741420

申请日：2016-07-01

Applicant: TTP Plc

Inventor： David POOLEY

IPC: B05B17/00 ,  B05B17/06 ,  H01F7/02

Abstract: A liquid droplet production apparatus comprising a separable perforate membrane (44), a means for supplying liquid to one side of the membrane, an actuator (41) for vibrating a membrane, so that the vibration causes liquid droplets to be ejected from the other side of the membrane, in which a magnetic force is used to connect the actuator to the membrane so that the vibration can be transmitted, wherein the magnetic force is generated by one or more arrays of magnets (43), eventually on a substrate (42), each array containing either a plurality of magnets or at least one magnet having a multiple pole configuration.