Recent content by orla22

hi all, could you possibly help me with this problem? R1 and R2 are 2 guages with resistance of 100 ohm. A steel bar has diameter 45mm and modulus of steel bar is 170GN/m^2 and gauge factor of 2. How would I calculate Vout when a load of 35kN is applied? i know what the Vout formula is and...

yes sorry i did have the wrong units. can one help me with this? https://www.physicsforums.com/showthread.php?p=2199864#post2199864

if r1 has value of 600 and r2=r3=r4=400 ohms. supply voltage is 10v. im getting the wrong answer and do not know how. im using [(R4R2 - R3R1) / (R1+R4)(R2+R3)] * VS i get an answer of [160000 - 240000 / (1000)(800)] * 10 = [-80000 / 80000] * 10 = -1ohm but this is the incorrect answer...

A strain gauge has a unstrained resistance of 120 ohms, gauge factor of 2.0 is connected to steel girder so it experieces tensile stress. If strained resistance of gauge is 120.13 ohm. How do i calculate the tensile stress value? I have looked all over the internet for equations relating but...

A strain gauge has a unstrained resistance of 120 ohms, gauge factor of 2.0 is connected to steel girder so it experieces tensile stress. If strained resistance of gauge is 120.13 ohm. How do i calculate the tensile stress value?

i found c is speed of light and freq should be in question as for area, how do i find this

beamwidth = 60(lamda) / area i knw lamda = c x f how do i find the area ? and also what is c and f in relation to radar?

the process is shown as product why can't we just add the signals? and what's requirements for constant input which is added to message?

Amplitude Modulation transmitter if carrier wave is 20MHz and message frequency 1kHz. what does a sketch of both waveforms in detail look like?

It was clear from my post that it is not a HW question

ahh yes v good. what question does that answer in my post?

i am stuck, which is why i posted the problem...

yea sorry its 567 Hz. can you possibly post a drawing of the graphs?

Amplitude Modulation Transmitter question This is not a HW question but an activity i am working on. The attachment is a symbolic AM transmitter. https://www.physicsforums.com/attachment.php?attachmentid=18736&d=1241306119 The carrier is 15MHz and message frequency is 2Mhz. I want to...

This is not a HW question but an activity i am working on. The attachment is a symbolic AM transmitter. The carrier is 15MHz and message frequency is 2Mhz. I want to sketch the waveforms labelling them in as much detail as possible. Also sketch the output waveform in both time and...