Programmable circuit for drift compensation
US8123405B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Sep 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/316
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods relating to programmable circuits are described. Several embodiments relate to systems and methods for controlling the long-term stability and accuracy of circuits that produce waveforms varying in frequency and amplitude. Such embodiments may include a circuit comprising a common vacuum environment that houses a pair of heater-thermocouples. The circuit may compare signals outputted by each heater-thermocouple and then may produce a resultant value based on the comparison. The resultant value may be used by the circuit to control the long-term stability and accuracy of the circuit. Such control of the long-term stability and accuracy of the circuit may include drift compensation associated with certain components of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.