Hello,
I am looking for a material that would stake teflon coated wire to steel. I am hoping for some of the following characteristics:
1. relatively thick, quick cure
2. chemical resistant to degreasing solutions commonly used to remove flux when soldering
3. non-conductive, good insulation...
Hello,
I currently work for a company that manufactures weigh scale devices. A majority of the devices are either patient weight scales ( the kind you stand on at the doctors ) or a tension load cell (displays patient weight when on a lifter). Typically the devices can weigh up to 1000lbs full...
Hello,
I need some advice on how to inspect strain gage placement inside a load cell. Typically strain gages have alignment marks, the gage itself is small at (0.25" x 0.14" ). The gage is bonded in the center of a hole (0.55" dia) drilled through inside the load cell (which is basically a...
Hello,
Is there a good web site or book which shows pictures of defects that can occur with steels.
For example at work I have seen that after tool steel (S7) has been heat-treated the surface apears to have a rippling, something like I can only describe as a fingerprint or maze as when viewed...
Thank you for your quick responses.
So ramp rates are not as important as the number of tempering cycles (except try to cool down further before repeating cycle ). Wow was I off course with that one!!!..... Several references that I have seen seem to suggest low ramp rates and controlled...
I am working with load cells made from S7 Tool Steel (T41907) that have already been machined and are heat treated in the following manner:
1) individual 1"x1"x3" are placed in a steel foil bag, and evacuated.
2) the pieces are placed in an oven that has been sitting at 1200-1300F...
I think that I got my self confused in the units, and I am kind of new with this so you will have to bear with me....
----------Goal----------
To rent test equipment in order to perform immunity tests similar to IEC 61000-4-3
(3V/m, 26Mhz to 1GHz, 1kHz sine +/- 80%) to work out any bugs before...
It is not a compensation but a proof & verification. My question revolves around pressure optimization. The test will continue regardless. I am trying to prevent overkill
Thanks for responding
Qu1nn
Qu1nn
Typically the design of pressure transducers is such that there is a bonded foil strain gage in a whetstone configuration which is bonded to the non-wetted side of an diaphragm… there also is an amplification/compensation electronics board assembly that is contained within a metal housing...
Typically the design of pressure transducers is such that there is a bonded foil strain gage in a whetstone bridge configuration which is bonded to the non-wetted side of an diaphragm… there also is an amplification/compensation electronics board assembly that is contained within a metal...
I do not have all of the details. The device is a pressure transducer ( I dont know if it is a hermetically sealed or not). For the storage environment I am not sure, but I can only assume std storage conditions.
Again,
I do not have all of the details, I am sorry.
I guess if there is a...
I am researching mathematical calculations for royer-push-pull isolated dc-dc converter designs < 1 Watt ... any good sources for info? any experts / design guides, etc...
Thanks
Qu1nn
Qu1nn
What methods can be used in order to justify the use of an electromechanical device that has been sitting on a shelf for 5 yrs.
-> obviously the device could be hooked up and performance verified.
-> if MTBF is known, shelf time could be subtracted out
any other ideas? or techniques?
Thanks...
The specification really means that one could run the power supply over a wide range of excitation voltages. Regulation is performed by an isolated dc-dc converter, which will oscillate, and regulate as long as it falls within min/max excitation voltages and can provide a minimum current...
Pressure transducer 0-5Vdc output range, utilizing a std wheatstone bridge configuration . Typically the specification states that the transducer can be used on an unregulated powersupply between 20 and 40Vdc, typically 30Vdc is used.
Is there a standard procedure for measuring noise feedback of a sensor?
First off, I am assuming that noise feedback would be the noise from the sensor that gets injected back into the power supply.
If I had to guess you would want to place something inbetween the power supply and the sensor...
Is it common for engineering to get overriden by sales?
Where I work the sales department; Receives the customers specifications, quote on bids, receive customers statement of work, and form a sale based on the statement of work.
Engineering- typically will have to make several waivers as...