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Questions tagged [instrumentation]

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-1 votes
0 answers
85 views

30MHz signal that could drive a 100W load

I'm seeking an AC source or signal generator for a RF application with the following specifications: Output bandwidth: 0-30MHz Power output: 100W (necessary for sustaining a plasma) The issue I'm ...
ludicrous's user avatar
  • 1,163
0 votes
0 answers
34 views

Ayrton Shunt/Universal Shunt

Is it correct that I calculated Rs for every range; 0-100mA, 0-150mA and 0-300mA? Then, to find R2, I need to do Rs=R2+R3+R4? Like R2=Rs-(R3+R4)?
Tihaa's user avatar
  • 1
2 votes
3 answers
588 views

Instrumenting PCBs for current consumption

I wanted to know how much current our PSOC6 MCU is consuming. Our supplier has sent us this document with locations where I can remove resistors / inductors that are in series and then I can solder my ...
Kabangu93 's user avatar
0 votes
2 answers
78 views

Isolating USB3 with an ADUM4160

I've not played with USB much besides the ordinary FTDI UART bridges. Recently, I have reason to use an FT601 with a USB3 port configured for super-speed operation. As this is connected to a fairly ...
instrumental's user avatar
1 vote
2 answers
212 views

How can I describe the loading effect of an ohmmeter?

How can I describe the loading effect in an ohmmeter? I've been given an assignment with this question, and I tried to look it up on the internet but could find no other material apart from loading ...
Prabhat Sharma's user avatar
0 votes
1 answer
155 views

Force Sensitive Resistor Calibration

I have been trying to calibrate FSR06CE Force Sensitive Resistor. Data sheet here. For starters I started by placing deadweights on the top of the FSR's active area and using a multimeter and DSO I ...
Ethan25's user avatar
  • 11
1 vote
1 answer
367 views

Need Help Calibrating Force Sensing Resistor (FSR)

I'm currently working on a project that involves using a Force Sensing Resistor (FSR). However, I've run into a bit of a roadblock when it comes to calibrating the FSR. I don't have access to a weight ...
Ethan25's user avatar
  • 11
1 vote
3 answers
761 views

How do I find the transfer function of a PID that uses a single op-amp?

How does one go about finding the transfer function of the following op-amp PID? I have tried to convert each component of the circuit into its transfer function representations, e.g., making each ...
kanyanta makasa's user avatar
1 vote
1 answer
123 views

What happens during instrument calibration? [closed]

I've worked with a lot of instrumentation for both non-electrical phenomena (UV-vis spectrophotometer measuring DNA concentration, MEMS gyroscopes) and electrical ones (the usual oscilloscope, ...
Dragonsheep's user avatar
3 votes
0 answers
32 views

Differential probe shifting DC signal component

I was measuring the high side command and low side command of a synchronous buck converter when I saw the following phenomenom when I was increasing the input voltage of the buck. The phenomenom ...
Jess's user avatar
  • 2,478
1 vote
0 answers
78 views

Resistance measurement: Agilent 34401A vs. Fluke 179

I was attempting to measure isolation resistance between the output of an isolated DC/DC converter to machine chassis. I was somewhat surprised to see a large difference in measurement between a 6 1/2 ...
electroGeek's user avatar
0 votes
0 answers
46 views

Error in current measurement

I am measuring the error ratio and phase displacement in a CT. The experimental circuit is the next. The results with the oscilloscope show that the error ratio is not within the limits of the class ...
Fe2321's user avatar
  • 1
2 votes
1 answer
125 views

Long Term Drift of IC

I wanted to calculate Long Term Drift of output voltage of an IC and in datasheet the value is given as 60 ppm/√kHr. I dont know what exactly this means as there is square root of kHr. Can anyone pls ...
Alison's user avatar
  • 347
0 votes
2 answers
177 views

Plain old SSH to Keysight DMMs?

I want to program some simple automation using test gear like Keysight DMM 34461A. I have done this sort of thing using VISA, SCPI etc (for example with pyVISA) over ethernet. But I'd like to know ...
gwideman's user avatar
  • 2,739
0 votes
1 answer
210 views

How do 4-20 mA transducers work?

I am quite new to the instrumentation of electronics. I have noticed that most transducers that are used in the industry only use 2 pins, where it is usually marked with a positive 24V pin and an ...
Feri's user avatar
  • 5

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