Class / Patent application number | Description | Number of patent applications / Date published |
374006000 | DISTANCE OR ANGLE | 8 |
20110292963 | LASER POSITION DETECTION SYSTEM - A laser or other heat source detection device is produced by creating a grid pattern on a polymer backing. The grid pattern comprises a PTC compound heat resistive ink in the form of discrete elements coupled by conductive ink lines or stripes. A resistance measurement device measures for an increase in resistance somewhere in the grid which indicates a laser or other heat source being directed at the grid. The laser detection device further comprises a cover material of heat transmissive material such as aluminum. In one embodiment, the resistance measurement device is capable of rapidly detecting the exact location of the laser source and relaying this position to a laser position control. The laser position control directs the positioning of the laser source and can either adjust or maintain the position of the laser source based on the feedback provided by the resistance measurement device or can shut down the laser and can record the time that the event took place. | 12-01-2011 |
20150063405 | SUBSTRATE PLACEMENT DETECTION IN SEMICONDUCTOR EQUIPMENT USING THERMAL RESPONSE CHARACTERISTICS - Methods and apparatus for determining proper placement of a substrate upon a substrate support in a process chamber are disclosed. In some embodiments, a method for detecting substrate placement in a process chamber includes placing a substrate on a support surface of a substrate support with the process chamber; modifying a pressure within the chamber to create a detection pressure within the chamber; sensing a first temperature of the substrate support; monitoring a thermal response characteristic of the substrate support after placing the substrate on the substrate support; comparing the thermal response characteristic to a predetermined response characteristic; and determining whether the substrate is placed correctly based upon the comparison of the thermal response characteristic to the predetermined response characteristic. | 03-05-2015 |
374007000 | Thickness, erosion, or deposition | 6 |
20080291965 | Method for measuring ash/slag deposition in a utility boiler - A method for measuring ash/slag deposition in an operating utility boiler. The method has the following steps: i) providing a probe for the boiler wherein the probe has at least one thermocouple therein or thereon for measuring temperature; ii) measuring the temperature at the thermocouple at a baseline time; iii) measuring the temperature at least one thermocouple at a pre-determined time later than the baseline time; and iv) comparing the temperature at the baseline time to the temperature at the pre-determined time to correlate to a level of deposition. There is also a utility boiler system. | 11-27-2008 |
20080298426 | Method and apparatus for monitoring the formation of deposits in furnaces - Method and apparatus for monitoring formation of deposits of solid particles from flue gas onto furnace walls formed of welded-together tubes through which cooling medium flows. For the entire surface of the walls, the exact surface temperature is detected with infrared cameras, offset by 90° relative to one another, via a thermal image obtained of a surface development of the furnace. This exact surface temperature is compared with the temperature of the cooling medium from measurement locations. Individual images from the cameras are composed to form an overall development of the inner surface of the furnace walls. The coordinates of the deposits on the walls are determined from the overall development, and the thickness of the deposits is determined from the temperature comparison. | 12-04-2008 |
20090041078 | METHODS AND APPARATUS FOR MONITORING A CONDITION OF A MATERIAL - Apparatus, methods, and articles of manufacture for monitoring a condition of a material are disclosed. In particular, the example apparatus, methods, and articles of manufacture emit a first acoustic signal into a wall of the tubular member having a first temperature value and obtain a first propagation time associated with the first acoustic signal. In addition, a second acoustic signal is emitted into the wall having a second temperature value and a second propagation time associated with the second ultrasonic acoustic signal is obtained. The second temperature value is determined based on the first temperature value and the first and second propagation times. | 02-12-2009 |
20090262777 | HEAT FLUX MEASUREMENT DEVICE FOR ESTIMATING FOULING THICKNESS - A heat flux measurement device includes at least two thermocouples disposed within a front portion of the device at different axial distances from a front wall of the device. A correlation between the measured heat fluxes from the device over a period of time is used to estimate a fouling thickness on a wall, for example, a water wall of a radiant syngas cooler (RSC). | 10-22-2009 |
20090310643 | Methods and Apparatus for Thin Metal Film Thickness Measurement - A method for measuring a metal film thickness is provided. The method initiates with heating a region of interest of a metal film with a defined amount of heat energy. Then, a temperature of the metal film is measured. Next, a thickness of the metal film is calculated based upon the temperature and the defined amount of heat energy. A chemical mechanical planarization system capable of detecting a thin metal film through the detection of heat transfer dynamics is also provided. | 12-17-2009 |
20130243027 | THERMAL EROSION TESTER - A thermal erosion tester, comprising a rotating heated element, which is adapted to contact a sand specimen placed in the thermal erosion tester, a heating element to heat the rotating heated element, and a motor to drive rotation of the rotating heated element, wherein the rotating heated element is adapted to contact the sand specimen while the rotating heated element is rotating, causing erosion of the sand specimen, and a method of testing thermal erosion, and a method of testing erosion of a sand specimen when it is in contact with a heated element. | 09-19-2013 |