Displacement sensor
US8805643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Teaching processing using a model of a workpiece is performed by accepting at least one input of a target value for a response time and a tolerance value for a detection error as a parameter representing a condition for a displacement sensor to operate. A CPU during teaching processing determines a maximum exposure time while it causes repeated detection processing by a light projecting unit and a light receiving unit, calculates variation in measurement data of an amount of displacement, and derives the number of pieces of data of moving average calculation suitable for a value for the input parameter as a result of operation processing using the maximum exposure time and variation in measurement data. This number of pieces of data is registered in a memory and used for moving average calculation in a normal operation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.