US 4,397,569 AGranted

System for correlating a signal sensor location with a recorder printout

AssigneeThe Direct Reduction Corporation

InventorRichard H. Davis

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Abstract

A system for correlating condition-indicative signals fed sequentially from a series of sensors, such as thermocouples installed in ports on the surface of a rotating kiln at various longitudinal and angular coordinates along the total length of the kiln, with the signals printout on a multipoint recorder mounted remotely from the kiln is disclosed wherein two photoelectric devices are disposed at fixed points adjacent the kiln for sensing the passage of a series of sensor-location indicator tabs mounted on and rotating with the kiln. The series of indicator tabs are spaced circumferentially about the kiln shell, preferably in respective radial plane alignment with the series of sensors, so as to produce a sequenced series of signals in response to the continuous passage of the tabs past one of the photoelectric devices, which signals are communicated from the device to the multipoint recorder to sequence the print mechanism on the receiving recorder and thus correlate the sequenced condition signals with the sensor locations. A single reset tab is also disposed on the kiln and activates the other photoelectric device which produces a recorder reset signal for every revolution of the kiln.

Claims13

Dependent claims

A system for correlating the readout on a stationary recorder of a series of electrical signals, originating on a rotating cylindrical body and communicated in sequence to said recorder, with the relative locations of origin of each of said signals on said rotating body comprising:

a plurality of means spaced from each other on said body, for respectively producing said signals on said series;
continuous conductor means surroundingly mounted at a selected axial location on said body for receiving all of said signals in the series, and pickoff means off said body for conducting said signals from said conductor means off said body and to said recorder;
switching means, disposed on and rotating with said body, for controlling the sequential communication of said signals between their locations of origin and said conductor means in accordance with the rotational speed of said body;
indicating means, disposed on and rotating with said body, for indicating the relative locations of origin of each of said signals in the series;
photoelectric means, disposed adjacent said rotating body and responsive to the passage thereby of said indicating means rotating with said body, for producing keying signals indicative of each passage of said indicating means thereby;
and
means for communicating said keying signals from said photoelectric means to said recorder;
and wherein said indicating means comprises a series of indicators spaced circumferentially from each other on said body in accordance with the sequence spacing of said signals by said switching means and so disposed with respect to said photoelectric means that said keying signals are communicated to said recorder in sequence to actuate said recorder just prior to the receipt and readout of each of said signals in the series on said recorder so that each signal readout is correlated with its relative location of origin on said body;
and means for resetting said recorder after the readout of each series of signals is completed.

6 more elements

A system for recording in sequence a number of condition-indicative signals originating from a respective number of different locations on a rotating cylindrical body, such as a rotary kiln, comprising:

a plurality of sensing means disposed on the kiln at axially and circumferentially spaced locations from each other for sensing internal kiln conditions and producing respective electrical signals indicative thereof;
recording means disposed off said kiln for recording said respective condition-indicative signals in sequence;
transfer means for transferring said condition-indicative signals from said kiln to said recording means and comprising:
a set of continuous electrical conductors mounted on and surrounding said kiln for receiving said electrical signals from said sensing means;
and
means off said kiln for picking off said signals from said conductors and conducting said signals to said recording means;
switching means disposed on and rotating with the kiln for transferring said condition-indicative signals from said sensing means one at a time in sequence to said conductors of said transfer means;
indicator means disposed on and rotating with said kiln for indicating the relative circumferential locations of said sensing means on said kiln;
photoelectric means disposed adjacent said kiln and responsive to the passage thereby of said indicator means rotating with the kiln, for producing keying signals indicative of each passage of said indicator means thereby;
and
means for communicating said keying signals to said recording means;
and wherein said sensing means, said switching means and said indicator means are disposed circumferentially on the kiln periphery such that said keying signals are respectively communicated to said recording means just prior to the receipt of each of said condition-indicative signals to separate and correlate the readout of said condition-indicative signals with their respective sensing means on said recording means.

9 more elements

Dependencies are inferred from the claim text.