Capacitive type proximity sensor
US8269178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4441
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
It is provided a capacitive type proximity sensor, comprising a sensing electrode, whereas the sensing electrode has a surface with electroconductive areas 113 and not-electroconductive areas 117, whereas the sensor is adapted for measuring an electrical field 110, 112 between the sensing electrode and an object 109, 111. Further it is described an apparatus for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, a system for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, a method for avoiding collision between an apparatus for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, and an object, a program element and a computer readable medium. It is disclosed a capacitance type proximity sensor whose sensitivity of approaching objects has an improved independence from the special geometry of the sensor itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.