GB2533903B - Further development of embedment transducer - Google Patents

Further development of embedment transducer Download PDF

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Publication number
GB2533903B
GB2533903B GB1417440.3A GB201417440A GB2533903B GB 2533903 B GB2533903 B GB 2533903B GB 201417440 A GB201417440 A GB 201417440A GB 2533903 B GB2533903 B GB 2533903B
Authority
GB
United Kingdom
Prior art keywords
transducer
electric
preceeding
output
strain gauges
Prior art date
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 - Fee Related
Application number
GB1417440.3A
Other versions
GB2533903A (en
GB201417440D0 (en
Inventor
West Roger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1417440.3A priority Critical patent/GB2533903B/en
Publication of GB201417440D0 publication Critical patent/GB201417440D0/en
Publication of GB2533903A publication Critical patent/GB2533903A/en
Application granted granted Critical
Publication of GB2533903B publication Critical patent/GB2533903B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G01M17/10—Suspensions, axles or wheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
    • G01P15/122—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance by metal resistance strain gauges, e.g. wire resistance strain gauges

Description

Further development of embedment transducer
Description A transducer called AXLOAD which was a recently developed as a multi-parameter, embedment sensor, which was originally and is currently used on the rail of a railway. This application extends the sensor to vehicles carried by the rail and any similar site, e.g. truck axle ends.
The sensor is to be mounted/embedded in the axle joumal/box (a) FIG 1 or side frame (b) to give an electronic output.
These positions are located in the parts of the mechanical system which provide for functions that are easily accessed and are in the line of the force which is proportional to the output of the strain gauge within the sensor.
Position FIG (a) will also provide information on the temperature and vibration of the bearing, within the axle joumal/box, which is a vital indicator of the bearing condition. Early warning will be given as to the likely failure of the bearing.
The transducer can give information on the vibration and temperature of the sensed site which gives an indication of the integrity of the wheel/rail/suspension and bearing system. It could also indicate the existence of a ‘flat’ wheel surface. A transducer that is to be mounted on the mechanical neutral axis of the component on which it is mounted/embedded so that it becomes virtual immune to any force, which is likely to corrupt the stress/weight measurement, which it is aimed at measuring. This will also provide a robust system, which is unlikely to cause early failure due to the embedment ‘intrusion’ into the component.
By using pairs of strain gauges (shown as A and B in FIG 3) such that they can provide electronic outputs that can be added. Thus correcting for unwanted signals output due to torsion or bending.
The algebraic formula for this correction is: -
Corrected Vertical Force = W + F - F i.e. W (real)
The transducer also has an inbuilt amplifier and other electronics to digitise and data reduce the outputs of the transducers.
There is also capacity to carry a dry cell voltage power source.
The unit can also transmit digitised data via a telemetry system.

Claims (6)

Claims
1. A transducer which is mounted/embedded in a rail or rail vehicle such as a truck freight wagon locomotive or passenger car, this transducer will monitor the weight stress through the component in which it is mounted, the transducer will be mounted at a position where it will be subject to compressive or shear stress, the sensor/system will measure these coplanar forces, this transducer is equipped with pairs of strain gauges mounted within the transducer barrel such that the electric outputs of these strain gauges can be summed to give larger outputs, the gauges are mounted in such a way as to span the vertical neutral axis to neutralise the corrupting forces and provide accurate weighing signals, there is a disc against which is a strain gauge and there is a small slot engineered into the perimeter of the disc to allow through the wires from a similar strain gauge situated at the distal end of the barrel.
2. The transducer as described in Claim 1 which has the ability to provide an electric output that can be easily calibrated.
3. The transduce as described in Claims 1 and 2 further comprising an inbuilt electric amplifier and other electrics to digitise and data reduce the amplifier output of the sensors.
4. The transducer as claimed in any preceeding claims which is configured so as to be able to carry a dry cell voltage power source.
5. The transducer as claimed in any of the preceeding claims which is configured to transmit the output of the strain gauges and other electric outputs via a telemetry system.
6. The transducer as claimed in any preceeding claim which will provide for easily installed robust and reliable systems which will withstand the very large shock levels experienced at the location of the transducers.
GB1417440.3A 2014-10-02 2014-10-02 Further development of embedment transducer Expired - Fee Related GB2533903B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1417440.3A GB2533903B (en) 2014-10-02 2014-10-02 Further development of embedment transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1417440.3A GB2533903B (en) 2014-10-02 2014-10-02 Further development of embedment transducer

Publications (3)

Publication Number Publication Date
GB201417440D0 GB201417440D0 (en) 2014-11-19
GB2533903A GB2533903A (en) 2016-07-13
GB2533903B true GB2533903B (en) 2019-09-25

Family

ID=51946743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1417440.3A Expired - Fee Related GB2533903B (en) 2014-10-02 2014-10-02 Further development of embedment transducer

Country Status (1)

Country Link
GB (1) GB2533903B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364534A (en) * 1970-09-21 1974-08-21 Conrail Ab Weighing devices
GB2194065A (en) * 1986-08-15 1988-02-24 George Barry Bolland Weight sensing apparatus
GB2371114A (en) * 2001-01-13 2002-07-17 Roger West Plug type strain sensor for a railway rail
GB2458033A (en) * 2007-10-11 2009-09-09 Roger West Laboratories Ltd Multi sensing embedment transducer/sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364534A (en) * 1970-09-21 1974-08-21 Conrail Ab Weighing devices
GB2194065A (en) * 1986-08-15 1988-02-24 George Barry Bolland Weight sensing apparatus
GB2371114A (en) * 2001-01-13 2002-07-17 Roger West Plug type strain sensor for a railway rail
GB2458033A (en) * 2007-10-11 2009-09-09 Roger West Laboratories Ltd Multi sensing embedment transducer/sensor

Also Published As

Publication number Publication date
GB2533903A (en) 2016-07-13
GB201417440D0 (en) 2014-11-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20201002