Abstract: An electronic level indicator, having a housing including at least one planar surface, at least one gravity responsive sensor mounted on the housing, the sensor constituting at least a part of two branches of an electronic bridge circuit, a pulse generator coupled to the bridge circuit for feeding the bridge circuit with short pulses, a differential amplifier connected to the output of the bridge circuit, an A/D converter connected in circuit for receiving signals from the amplifier and a display unit connected to the output of the converter for displaying numerical data indicative of the inclination of the planar surface.
Type:
Grant
Filed:
March 4, 1991
Date of Patent:
November 3, 1992
Assignee:
Amrad Research and Development
Inventors:
Uri Cagan, Lev Diamant, Geoffrey Goodman
Abstract: An electronic level indicator, having a housing including at least one planar surface, a gravity responsive sensor mounted on the housing, the sensor constituting at least a part of two branches of an electronic bridge circuit, a pulse generator coupled to the bridge circuit for feeding the bridge circuit with short pulses, a differential amplifier connected to the output of the bridge circuit, an A/D converter connected in circuit for receiving signals from the amplifier and a display unit connected to the output of the converter for displaying numerical data indicative of the inclination of the planar surface.
Type:
Grant
Filed:
December 15, 1989
Date of Patent:
July 2, 1991
Assignee:
Amrad Research and Development
Inventors:
Uri Cagan, Lev Diamant, Geoffrey Goodman