US3852999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance measuring network
Assignee: UTHE TECHNOLOGY
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Filing: 1971-06-10
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Granted: 1974-12-10
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Expires: 1991-06-10
Abstract
Abstract A circuit is connected to an ultrasonic transducer being fed by a constant current or constant voltage power supply. By rectifying, integrating, and amplifying the transducer coil voltage an output signal that is a function of the transducer and load impedance is provided that can be displayed so as to determine the operating condition of the ultrasonic apparatus.
Inventors
- 👤 L Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:10
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0253; B23; B23K; B23K20/00; B23K20/10; B06B2201/00; B06B2201/70; B06B2201/72; H; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/075; H10W72/07531
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
59 words
Apparatus for driving and testing the operation of an ultrasonic transducer comprising a constant current or constant voltage power supply for driving an ultrasonic transducer for application to a load, circuit means for rectifying, integrating and amplifying transducer coil voltage as a signal that is an analog of the transducer and load impedance, and means for displaying said signal.
Claim 2
Dependent Claim
59 words
Apparatus for driving and testing the operation of an ultrasonic transducer comprising a constant current or constant voltage power supply for driving an ultrasonic transducer for application to a load, circuit means for rectifying, integrating and amplifying transducer coil voltage as a signal that is an analog of the transducer and load impedance, and means for displaying said signal.
Claim 3
Dependent Claim
93 words
Apparatus for driving and testing the operation of an ultrasonic welding system including a transducer acting on a load, said transducer having a coil across which a voltage appears during operation of the system, comprising a constant current or constant voltage power supply for driving said transducer, and means for generating a waveform signal that is a function of the transducer and load impedance, said means comprising circuit means for rectifying, integrating and amplifying said transducer coil voltage to provide a waveform signal that is an analog of the transducer and load impedance.
Claim 4
Dependent Claim
93 words
Apparatus for driving and testing the operation of an ultrasonic welding system including a transducer acting on a load, said transducer having a coil across which a voltage appears during operation of the system, comprising a constant current or constant voltage power supply for driving said transducer, and means for generating a waveform signal that is a function of the transducer and load impedance, said means comprising circuit means for rectifying, integrating and amplifying said transducer coil voltage to provide a waveform signal that is an analog of the transducer and load impedance.
Claim 5
Dependent Claim
122 words
Apparatus for driving and testing the operation of an ultrasonic welding system including a transducer acting on a load, said transducer having a coil across which a voltage appears during operation of the system, comprising a constant current or constant voltage power supply for driving said transducer, means for generating a waveform signal that is a function of the transducer and load impedance, said means comprising circuit means for rectifying, integrating and amplifying said transducer coil voltage to provide a waveform signal that is an analog of the transducer and load impedance, analyzing means for displaying an applied signal, and means for applying said waveform signal to said analyzing means so that an operator may determine the operating condition of the system.
Claim 6
Dependent Claim
122 words
Apparatus for driving and testing the operation of an ultrasonic welding system including a transducer acting on a load, said transducer having a coil across which a voltage appears during operation of the system, comprising a constant current or constant voltage power supply for driving said transducer, means for generating a waveform signal that is a function of the transducer and load impedance, said means comprising circuit means for rectifying, integrating and amplifying said transducer coil voltage to provide a waveform signal that is an analog of the transducer and load impedance, analyzing means for displaying an applied signal, and means for applying said waveform signal to said analyzing means so that an operator may determine the operating condition of the system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |