Patent ID: 6118082
Filing Date: 2000-09-12
Classification: D01G,D01H,G01G

Abstract:
A sliver monitor for monitoring the unit weight of a moving sliver in a textile machine, comprising:(a) a support rigidly mounted on a sliver output end of said textile machine;(b) a trumpet carried by said support for outputting a condensed sliver;(c) at least one strain gauge carried by said support and responsive to strain imposed on said support by movement of sliver through said trumpet;(d) analog electrical circuit means carried on said support in electrically communicating relation and in close proximity to said strain gauge, and including:(1) a power supply carried by said electrical circuit on said support for outputting an excitation voltage; and(2) a Wheatstone bridge for receiving the excitation voltage from said power supply and applying the excitation voltage to said at least one strain gauge; and(3) amplifier circuit means carried on said support for receiving a feedback signal from said strain gauge and outputting an amplified analog control signal corresponding to the weight of the sliver passing through the trumpet in order to render the output analog signal less prone to electrical interference than the feedback signal from the strain gauge; and(e) data processing and storage means for receiving and storing the amplified analog control signal for further processing.