High-speed electric tomography
US5544662A · kind A · utility
55Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1993 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Oct 6, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H40/63
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for electrical impedance imaging of a body includes an array of multiple electrodes. Each is connected to an adjustable amplitude precision current source of fixed frequency and an oversampling type digital voltmeter. The current amplitudes are set to produce a series of spatial current patterns, all orthogonal to each other, and each applied for only a short time interval while voltages are measured. The voltage and current values are used to create real and reactive impedance images of the interior of the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.