Temperature measurement calibration in an additive manufacturing system
AssigneeHewlett-Packard Development Company, L.P.
InventorsEsteve Comas, Sergio De Santiago Dominguez, Marina Ferran Farres
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Abstract
Examples of temperature measurement calibration in an additive manufacturing system are described. In one case, a method of calibrating a non-contact temperature measurement device involves applying energy from a radiation source of the additive manufacturing system to heat a reference element. The reference element is thermally coupled to a temperature sensor. A temperature reading from the temperature sensor is compared with data from the non-contact temperature measurement device to calibrate the device.
Claims14
A method of calibrating a non-contact temperature measurement device in an additive manufacturing system, the method comprising:
- applying energy from a radiation source of the additive manufacturing system to heat a reference element thermally coupled to a temperature sensor;
- and
- comparing a temperature reading from the temperature sensor with data from the non-contact temperature measurement device to calibrate said device.
An additive manufacturing system comprising:
- a radiation source to apply energy to heat a working area during construction of an object;
- a non-contact temperature measurement device to provide a temperature profile of the working area;
- a reference element and a temperature sensor thermally coupled to the reference element;
- and,
- a controller to calibrate the temperature measurement device based on a comparison of the temperature profile and temperature readings from the temperature sensor.
A non-transitory computer-readable storage medium comprising a set of computer-readable instructions stored thereon which, when executed by a processor of an additive manufacturing system, cause the processor to:
- control an energy source to irradiate a reference element on a carriage of the additive manufacturing system;
- read data comprising an array of temperature measurements from a thermal camera;
- read data comprising a temperature measurement from a sensor thermally coupled to the reference element;
- and
- calibrate the thermal camera based on a comparison of the read data from the thermal camera with the read data from the sensor.
Dependencies are inferred from the claim text.