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公开(公告)号：US5414247A
公开(公告)日：1995-05-09
申请号：US174717
申请日：1993-12-29
CPC分类号： B29C65/7847 , B29C65/46 , B29C65/4815 , B29C65/5057 , B29C66/1122 , B29C66/474 , B29C66/91216 , B29C66/91221 , B29C66/91411 , B29C66/91443 , B29C66/91641 , B29C66/91651 , B29C66/91931 , B29C66/91951 , B29C66/961 , G05D23/27 , B29C66/7254 , B29C66/919
摘要： A fiber optic cable extends into the housing of an induction heater and has a sensing end positioned to confront a part being heated. Infrared radiation from the part is transmitted by the cable to a transducer. The transducer converts the infrared energy into an electrical signal that is used by a control circuit to control the heating operation. The control circuit has an internal electronic timer that is used in normal operation and to detect certain failure conditions. In normal operation, electromagnetic pulses are provided to the heater at a predetermined power level until the part reaches a predetermined temperature. Then the control circuit adjusts the power level to hold the part at the temperature for a brief holding period. The timer is used by the control circuit to detect failure to reach a desired temperature after a maximum delay and to detect dropping of the temperature below a minimum level during the holding period. The control circuit also detects overheating of the workpiece. The control circuit adjusts and terminates the power level through a silicon controlled rectifier which receives a pulse train from the control circuit.
摘要翻译： 光纤电缆延伸到感应加热器的壳体中，并且具有定位成面对被加热部件的感测端。 来自部件的红外线辐射由电缆传输到传感器。 传感器将红外能量转换成由控制电路用于控制加热操作的电信号。 控制电路具有内部电子计时器，用于正常运行并检测某些故障状况。 在正常操作中，电磁脉冲以预定功率电平提供给加热器，直到该部件达到预定温度。 然后，控制电路调整功率电平以将部件保持在温度下短暂的保持期。 控制电路使用定时器来检测在最大延迟之后达到期望温度的故障，并且在保持期间检测温度低于最低电平的下降。 控制电路还检测工件的过热。 控制电路通过从控制电路接收脉冲串的可控硅整流器来调节和终止功率电平。
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公开(公告)号：US06807740B2
公开(公告)日：2004-10-26
申请号：US10325401
申请日：2002-12-20
申请人： Paul W. Reed , Duncan P. Mackinnon , Ronald D. Curl , Joe R. Long
发明人： Paul W. Reed , Duncan P. Mackinnon , Ronald D. Curl , Joe R. Long
IPC分类号： G01B1126
CPC分类号： G01C15/006 , Y10S33/21
摘要： A laser alignment tool includes a line laser assembly including a laser and emitting a laser beam line and an electronic target assembly including a photo detector array. The laser beam line of the laser is pointed toward the center of the photo detector array with the longitudinal axis of the laser beam line being perpendicular to the centerline of the photo detector array. The line laser assembly includes a laser diode having a line-generating lens attached in front using a lens holder and being mounted onto a tilt stage. Using a line laser provides a certified accuracy of +/−0.005 inches at a distance of 10 feet. The electronic target further includes a narrow band pass filter and a discrete LED display that is controlled by a microprocessor. The microprocessor may be programmed with a variable range for each LED of the discrete LED display according to the alignment task.
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