Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB10725/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sheffield Corp
Original Assignee
Sheffield Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sheffield CorpfiledCriticalSheffield Corp
Publication of GB829085ApublicationCriticalpatent/GB829085A/en
829,085. Electric measuring systems. SHEFFIELD CORPORATION. April 9, 1956 [April 15, 1955], No. 10725/56. Class 40 (1). Measuring apparatus for determining the position of the movable core 59 (Fig. 2) of a differential transformer 12 comprises an amplitude-stabilized oscillator 10 feeding the primary 57 of the differential transformer 12, the output signal, whose amplitude and phase depend on the position of the core, being fed through a filter 16, amplifier 18 and phase-sensitive rectifier 23, to be indicated on a meter 26. An adjustable voltage may be added to the output of the differential transformer 12 to adjust the zero indication on meter 26 for any predetermined zero position of the core 59. Specification 829,086 is referred to.
GB10725/56A1955-04-151956-04-09Improvements in electronic gaging
ExpiredGB829085A
(en)