Calibration devices and calibration methods
US8810447B2 · kind B2 · utility
2Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Apr 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration device, capable of calibrating a gain of a radiometer, includes an actuator and a micro-electromechanical-system (MEMS) unit. The actuator receives a calibration signal outputted from a control unit. The MEMS unit is coupled to the actuator, in which the actuator enables the MEMS unit to shield an antenna of the radiometer according to the calibration signal, such that the radiometer generates an environmental signal according to an equivalent radiant temperature received from the MEMS unit, and the control unit calibrates the gain of the radiometer according to the environmental signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.