Single geartooth sensor yielding multiple output pulse trains
March 15, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3132337 3247456 Apparatus for determining the angular position of a rotating member using reference and position elements that generate opposite polarity bipolar signals Pulse generator Tachometer for measuring speed and direction of shaft rotation with a single sensing element Transformer coupled position detecting apparatus with phase change detector Positioning sensor Device for measuring a position of a moving object Apparatus and method for the identification of angular pulses Shrouded turbine blade vibration monitor InventorAssigneeApplicationNo. 267728 filed on 03/15/1999US Classes:324/207.22, Having particular sensed object123/146.5A, Timers123/406.58, Having engine shaft rotational position signal generator (e.g., crank shaft, cam shaft)324/165, With direction indicator324/166, Including speed-related frequency generator324/173, Including magnetic detector324/207.25RotaryExaminersPrimary: Strecker, Gerard R.Attorney, Agent or FirmInternational ClassesG01B 007/30G01P 003/48 G01P 003/488 F02P 005/15 F02P 007/067 AbstractA magnetic effect sensor system has a target with a first set of regularly spaced tooth/slot transition target features and a second set of different tooth/slot transition target features interspersed within the regularly spaced features. The mix of target features allows a single magnetic effect sensor to output a clocking pulse train for misfire detection and an encoded pulse train for determining absolute mechanical position by utilizing two thresholds on the sensor output waveform.Field of SearchIncluding speed analog electrical signal generatorEddy current generator type (e.g., tachometer) With direction indicator Including speed-related frequency generator Including magnetic detector Permanent magnet type Inductive Electrically energized Separate pick-up Differential type (e.g., LVDT) Differential bridge circuit Hall effect Magnetoresistive Having particular sensed object Plural measurements (e.g., linear and rotary) Linear Rotary Having engine shaft rotational position signal generator (e.g., crank shaft, cam shaft) Speed responsive timing control Magnetically actuated switching Inductive or magnetic sensor Timers Inductor-type generators (variable reluctance) Magnetic, inductive or capacitive Magnetic speed measuring or mechanical speed measuring with ancillary magnetic means or with ancillary electrical means Rotational speed Orientation or position Angular position | |
