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TEST SYSTE reless rig tests longl


TEST SYSTEMS


FEA


FEAT RE ATURE


Wire ess rig tests long endurance drone controls


endurance drone control


A test rig for putting the next generation of controls for medium altitude l ng


A test rig for putting the next generation of controls for edium altitude long


endurance (MALE) drones through their paces has being developed by an i dependent electronics design company on the Welsh borders


T


he r g was developed especial y for this proj ll be dismantled after use. H


ver, th


he riig was developed especially for this pro ect andojject and wiill be dismantled after use. However, the


precision torque sensor which performs the critical task of collectin data fromthe rig for analysis will al


precision torque sensor which performs the critical task of collecting data from the rig for analysis will almost certainly be reused on subsequent j bs. The sensor i a TorqSense fromSensor Technology which is said to be as innovative as the latest generation of drones. Its w reless operation m kes it quick and easy to i stal


yet i of accurate data. to 30,0


ediumaltitude l ng endurance (MALE) drones or UAVs (unmanned aerial vehicles) typically fly at 10,000 to 30,000 feet for 24 to 48 hours. They are used for recognisance, surveillance and surveying, by th civilia


Medium altitude long endurance (MALE) drones or UAVs (unmanned aerial vehicles) typical y fly at 10,0


feet for 24 to 4


organisations and the ilitary. B cause of th duration of their flights, their controls m st be


organisations and the military. Because of the duration of their flights, their controls must be


s. T ey are


used for recognisance, surveillance and surveying, by both civilian


st certainly be reused on subsequent jobs. The sensor is a TorqSense from Sensor Technology which is said to be as innovative as the latest generation of drones. Its wireless operation makes it quick and easy to install, yet it is capable of generating vast amounts of accurate data.


capable of generating vast amounts


iis in radio contact with the other half in the main body of the TorqSense.


s in radio contact w th the other half in the m in body of the TorqSense.


explains Maher. “This unbalances the bridge and generates a signal indicating the torque value. “It i“It imparts no extra load onto the shaft, so measurements are true and calculations are si The rig produces data in real time and records the torque curve for analysis and traceability.” Significantly, because TorqSense is essentially reless i


"O r test rig’s role is to p t the m tors through long duration tests"


"Our test rig’s role is to put themotors through long duration tests"


reliable and accurate otherwise the risk of losing the craft would be unacceptably high.


reliable and accurate otherwise the risk of losing the craft would be unacceptably high.


PRINCIPAL OF DRONE FLIGH CON ROL Resembling a conventional fixed wing aircraft, the rincip ls of M LE


ro e flight co ma rol are w ll mo ms


PRINCIPALS OF DRONE FLIGHT CONTROL Resembl ng a conventional fixed wing aircraft, the principals of MALE drone flight control are well established. Ian Maher of Deva Technologies in Wr


tests to m ke sure they stay


“When the shaft rotates a phenomenon known as ‘surface affect waves’ causes one comb to expand and the other to contract, changing their electrical resistance in proportion to the speed of rotation,” explains Maher. “This unbalances the bridge and generates a signal indicating the torque value. parts no extra load onto the shaft, so


proportion to the speed of rotation,


easurements are true and calculations are simple. The rig produces data in real time and records the torque curve for analysis and traceability.” Significantly, because TorqSense is essentially wireless it is easy to set up. As there are no cablesis easy to set up. As there are no cables there i no need for delicate and fiddly slip rings. This means test rigs can be both set up


e. Your Global Automation Partner


there is no need for del cate and fiddly sl rings. This m ans test rigs can be both set up and operated easi y.and operated easily.


Maher again: “It also means we can just as easily take the TorqSense off one test rig and fit it to another. Thus we expect to use each one on m proj


but w save agai


establ shed. an Maher of Deva Technologies i Wrexham says: “High performance servo motors are used to position the flight control surfaces. Our test rig’s role i


after prolong exposure to the arduous operating conditions they are likely to encounter.”


y skill a installin , calibratin


her again: “It also m ans w can j st as easi take the TorqSense off one test rig and fit it to another. Thus we expect to use each one on multiple projects – not only do we save money by not having to buy a new one every ti because w have becom fa e n


using them


used to position the flight control surfaces. O r test rig’s role is to put the motors through long duration tests to make sure they stay within specification, even after prolong exposure to the arduous operating conditions they are l kely to encounter.


to put the m tors through l ng duration thin specification, even


In essence the TorqSense transducer constantlIn essence the TorqSense transducer constantly measures the power output at the motor shaft and this is compared to the i stantaneous current draw. By taking a large number of individual readings over the duration of the test period an accurate torque- ad curve can be plotted for each m tor and compared w th the expected values.


that i does not


asures the power output at the m tor shaft and this is compared to the instantaneous current draw. By taking a large number of individual readings over the duration of the test period an accurate torque- load curve can be plotted for each motor and compared with the expected values. TorqSense i highly innovative i


rqSense is available fro Sensor T chnology in


“When the shaft rotates a phenomenon known as urface affect waves’ causes one comb to expand and the other to contract, changing their electrical resistance i


Clear Object Detection


Cle ec etection ec


ear Object Dete


endurance (MALE) drones through their paces has being developed by an independent electronics design company on the Wel h borders


    InspectionIn pecttion nspec


ojects – not only do we save m ney by not having to buy a new one every time, but we save again because we have become familliar with the technology and are now highlly skill at installing, calibrating and using them.


iar w th the technology


TorqSense is available from Sensor Technology in Banbury, the company that came up with the concept and developed i


to today’s sophisticated and adaptable i strument. ABOU SENSOR ECHNOLOG ABOUT SENSOR TECHNOLOGY


Sensor Technology has beenmanufacturing qua torquem asurement solutions for over 35 years and operates fromtwo different locations in the heart of rural O fordshire. Its sales, m rketing, production and calibratio


facilities are located at A lo rk,


need to physically contact the shaft it is m nitoring. Instead sensing is achieved through a radio frequency link. Two tiny piezoelectric combs are attached to the shaft of the motor under test, perpendicular to one another and at 45 degrees to the axis of the shaft. These form half of a Wheatstone bridge circuit, which


TorqSense is highly innovative in that it does not need to physically contact the shaft it is monitoring. stead sensing i achieved through a radio frequency nk. Two tiny piezoelectric combs are attached to the shaft of the m tor under test, perpendicular to one another and at 45 degrees to the axis of the shaft. These formhalf of a W eatstone bridge circuit, w ich


logy also h s a


oxton and a research and development facility at Balscott Mill, Balscote. Sensor Technology also has a global network of distributors assisting sales and a network of world-renowned technical experts assisting the development of TorqSense and other technologies.


Sensor Technology has been manufacturing quallity torque measurement solutions for over 35 years and operates from two different locations in the heart of rural Oxfordshire. Its sales, marketing, production and calibration facilities are located at Apolllo Park, Wroxton and a research and development facility at lscott Mill, B lscote. Sensor T ch


global network of distributors assisting sales and a network of world-renowned technical experts assisting the development of TorqSense and other technologies.


Sensor Tech ww


www. /AUTOMAT /AUTOMA ION ATION chnolo logy www.sensors.co.uk E: we T: 01869 238400 T: 01869 238400 webinfo@sensors.co.uk AU AUTOMA MAT ATION | NOVEMBER 201 EMBER 2017 27 27


Banbury, the company that came up with the concept and developed it into today’s sophisticated and adaptable instrument.


Control Conttro


rol


More than 20,000 sensors. Factory Automation. Process Automation. Hazardous Areas. Harsh Environments. Measurement & Inspection. LED Lighting. Vision Systems. Machine Safety. Vehicle Detection. Flow, Temperature, Vibration and Pressure.


Turck Banner Ltd. Blenheim House, Blenheim Court, Wickford, Essex, SS11 8YT


Tel: 01268 578888 more@turckbanner.co.uk www.turckbanner.co.uk


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