| 摘要 |
A pressure transducer generates an instantaneous pressure of a pressurized liquid, such as an adhesive, sealant, or caulk, being dispensed from a dispenser. The signal is received by a filter for filtering out non-bubble pressure disturbances. The filter includes comparators; detection circuitry and times or counters. An alarm indicating the passing of a bubble is indicated in response to signals which pass both the filters.
|
