Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for detection of edge position thickness or splice position of a material web










Image Number 5 for United States Patent #5583828.

A series of pulses of ultrasonic wave emitted from the transmitter with a specified period are received by the receiver. The received signals are rectified to a smooth wave with a single peak. The occurrence time of the peak is determined to gain and store the peak value, which corresponds to the edge position, thickness or splice position of the web. Alternatively, the transmitter emits a series of pulses of ultrasonic wave with a specified period and the peak value in the signals received by the receiver is once held in the peak-holding circuit. The peak voltage held is discharged and reduced with the discharge device and smoothing of the charged voltage yields its mean value, which corresponds to the edge position, thickness or splice position of the web.








 
 
  Recently Added Patents
Multi-bank queuing architecture for higher bandwidth on-chip memory buffer
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
Changing a system clock rate synchronously
Electronic system with vertical intermetallic compound
Configuration and incentive in event management environment providing an automated segmentation of consideration
Glove
Out-of-order load/store queue structure
  Randomly Featured Patents
Device and method for relieving flooding from enclosed space
Sealing system for vehicle door
Image forming device with a small sized memory device employing a bit map assignment system
In-situ landfill pyrolysis, remediation and vitrification
Pipeline laying system and vessel with pipeline straightening and tensioning device
Communication module having tuner units that are separated and isolated from each other, and method of manufacturing the same
Continuous elemental analysis of process flows
Foam panel roof mounting system
AC-DC converter comprising a filtering device
Specific eatable taste modifiers