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Class Information
Number: 73/769
Name: Measuring and testing > Specimen stress or strain, or testing by stress or strain application > Specified electrical sensor or system > Coupling circuit for specific additional purpose (e.g., noise suppression) or having specified structure
Description: Subject matter having circuitry (a) for a purpose additional to, or perfecting, the transmission of the signal between the sensor and indicator or (b) in which the details of such circuitry are particularly described.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7032457 |
Method and apparatus for dielectric sensors and smart skin for aircraft and space vehicles |
Apr. 25, 2006 |
| 6975088 |
Automatic dynamic joint tensioning system |
Dec. 13, 2005 |
| 6951138 |
Method and apparatus for an ocean bottom seismic acquisition technique |
Oct. 4, 2005 |
| 6679123 |
Torque measuring piezoelectric device and method |
Jan. 20, 2004 |
| 6508132 |
Dynamic load cell apparatus |
Jan. 21, 2003 |
| 6053050 |
Signal conditioning system |
Apr. 25, 2000 |
| 5974895 |
Capacitively measuring sensor and readout circuit |
Nov. 2, 1999 |
| 5907095 |
High-sensitivity strain probe |
May. 25, 1999 |
| 5896033 |
Method and device for electronic compensation of electrical disturbance signals and use thereof |
Apr. 20, 1999 |
| 5872316 |
In-die ejection force measurement in forming operations |
Feb. 16, 1999 |
| 5797623 |
Smart skin sensor for real-time side impact detection and off-line diagnostics |
Aug. 25, 1998 |
| 5777235 |
Strain gage measuring arrangement, use of same, and modulation amplifier for such measuring arrangements |
Jul. 7, 1998 |
| 5723792 |
Stress composite sensor and stress measuring device using the same for structure |
Mar. 3, 1998 |
| 5578761 |
Adaptive piezoelectric sensoriactuator |
Nov. 26, 1996 |
| 5558477 |
Vibration damping system using active negative capacitance shunt circuit with piezoelectric reaction mass actuator |
Sep. 24, 1996 |
| 5551304 |
Method for setting sensing polarity of a sensor device |
Sep. 3, 1996 |
| 5507187 |
Wheel-acting force measuring device |
Apr. 16, 1996 |
| 5385185 |
Round up control system for veneer lathe |
Jan. 31, 1995 |
| 5347870 |
Dual function system having a piezoelectric element |
Sep. 20, 1994 |
| 5287748 |
Method and apparatus for changing the sensitivity of a transducer |
Feb. 22, 1994 |
| 5144847 |
Pressure or force measuring device |
Sep. 8, 1992 |
| 5088330 |
Square wave excitation of a transducer |
Feb. 18, 1992 |
| 4713973 |
Indicator with staged data processing |
Dec. 22, 1987 |
| 4545261 |
Shaft torque measuring system |
Oct. 8, 1985 |
| 4480480 |
System for assessing the integrity of structural systems |
Nov. 6, 1984 |
| 4422336 |
Instrumentation resonance compensation |
Dec. 27, 1983 |
| 4414852 |
Automatic zero balance circuit |
Nov. 15, 1983 |
| 4400618 |
Method of detecting and analyzing damage in printed circuit boards |
Aug. 23, 1983 |
| 4213348 |
Self-calibrating automatic zeroing strain gauge circuit |
Jul. 22, 1980 |
| 4138882 |
Transducer bridge circuit arrangement |
Feb. 13, 1979 |
| 4100598 |
Tablet press related instrumentation for use in development and control of formulations of pharmaceutical granulations |
Jul. 11, 1978 |
| 4064456 |
Meter box assembly |
Dec. 20, 1977 |
| 4059991 |
Modular constructed load sensing system |
Nov. 29, 1977 |
| 4030347 |
Biaxial capacitance strain transducer |
Jun. 21, 1977 |
| 4027530 |
Simplified apparatus for and method of tightening fasteners |
Jun. 7, 1977 |
| 4016764 |
Temperature compensated, high resolution pressure transducer based on capacitance change principles |
Apr. 12, 1977 |
| 4014208 |
Ultrasonic system for measuring dimensional or stress change in structural member |
Mar. 29, 1977 |
| 3987667 |
Self-contained instrument for measuring subterranean tunnel wall deflection |
Oct. 26, 1976 |
| 3974685 |
Tightening system and method |
Aug. 17, 1976 |
| 3965429 |
Circuitry for use with a transducer which generates a signal corresponding to a physical phenomenon |
Jun. 22, 1976 |
| 3962911 |
Method and apparatus for coupling signals from a rotating device with end shafts exposed |
Jun. 15, 1976 |
| 3956927 |
Strain gauge transducer apparatus |
May. 18, 1976 |
| 3955407 |
Method and apparatus for testing knitting machines |
May. 11, 1976 |
| 3955409 |
Device for torsional oscillation testing |
May. 11, 1976 |
| 3946307 |
Apparatus for detecting the physical properties of magnetic or electric conductive heat-responsive or deformable material using negative input impedance network |
Mar. 23, 1976 |
| 3937073 |
Method of non-destructively testing aluminum-to-copper welds |
Feb. 10, 1976 |
| 3933035 |
Installation for continuous measurement of the elastic coefficient of a traveling strip, wire or ribbon |
Jan. 20, 1976 |
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