Torque QA Webinar Slides

Post on 15-Feb-2017

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Transcript of Torque QA Webinar Slides

How do you address unknown issues such as "start-up torque" and

"unknown torque transient spikes.“?

Is a safety factor sufficient to address these problems?

Ken

When designing a rotary torque transducer into an application, do

you think the pedestal-mount or the general purpose rotary torque

transducer is the best approach?

Ken

I usually recommend shrink disk couplings over keyed couplings.

Is this the right thing to do?

Ken

What is the best way to measure shear (lateral) forces appliedto a flat plate that is used to

measure vertical force(e.g. weight)?

Frank

How can you tell the direction of rotation from the output voltage?

Jon

How would you go about minimizing slippage at the mounting locations

for torque cells that measure in both directions?

Richard

Are there sensors available that can measure both

applied load andtorque simultaneously?

Richard

Big Torque Measurements:What do I need to know about

high capacity torque measurements?

Nesko

What will be the uncertainty budgets for the torque transducer

comparison calibration?

Li-Ming

If the torque spec is 90 N.m +60 – 75 degrees, what fastening application

would be best?

Torque and Angleor

Angle and Torque

Jimmy

Why does the metrology community, specific to torque measurement,

not properly estimate the associateduncertainty with the measurement

being made?

Charles

What adaptors do you use to hold the torque wheel to the

transducer centerline?On some transducers the centering square pocket that accepts

the adaptor are not perfectly square leaving side to side movement of the adaptor and torque wheel. This does seem to

make a big difference on torque below 250“ lbs. The square pockets are not always square or the same size.

What can I do to reduce my uncertainty and how do you correct

these issues?

Chuck

Do you add repeatability of a torque wrench to your MUA budget?

If so, how many measurements are made? Do you do repeatability at each calibration point? If repeatability is made would you repeat the test point multiple times and move on to the next test point or go through all test point and then repeat?

Do you add resolution of the torque wrench to your MUA budget? If so, what resolution do you use for a non reading, settable type torque wrench? If the resolution and repeatability are included in

the MUA budget, how is an adequate TUR ie 4:1 maintained when conformance testing? Do you take multiple readings and verify all readings are within specs? How often do you calibrate

the Moment arm that is used to calibrate torque cells?

Dale

What are the largest contributors in an uncertainty for a torque calibration?

David

Aside from a more compact format is there any reason to use

a torque transducer over aload-cell at a known offset?

Aaron

Measurement of torqueon a 8" driveshaft is needed. High resolution (to accurately measure torque under no-load conditions) to a maximum of 24000 ft.lbs (4000 ft-lbs engine torque reduced 6:1) is needed. The sensor is also for field use (no slip rings and

IP67 sealing) and re-usable.

Do you have any suitable torque sensors for this application?

Bob

We are looking for a facility to perform torque measurement on

fastener over 1" diameter. Coefficient of friction using

Ni-ease vs. Copaslip vs Loctite.Can you advise?

Lana

Is there any protection in case the test torque goes over the

expected capacity?

Jose

What is the differencebetween a rotary

and reaction torque sensor?

John

How do you ensure that the torque sensor is installed on-center?

Brian

What type of couplingsdo you recommend?

Jeff