Questions tagged [instrumentation]
172 questions
7
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4 answers
How do you measure nano volt order signals?
If you have a blackbox that gives you nanovolt signal in the output, how would you collect and process it? Signal to noise ratio is very low.
How do you filter the noise? Let's say the frequency range is 0-80Hz in that application.
What amplifier…
Silas
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3
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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 appears on the red and green signals which are…
Jess
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2
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3 answers
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 fly leads.
Is this viable thing to do?
And if…
Kabangu93
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1
vote
2 answers
How are in practice input output impedance measured of a prototype circuit?
When an analogue circuit like an audio IC or an ADC for instance is implemented, is there a dedicated instrument/device which measure the input output impedance of the circuit or one has to perform his own setup?
I am very curios how are such tests…
GNZ
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1
vote
1 answer
Measurement range versus calibration in electronic instrumentation
I need to monitor temperature between -15°C and +40°C. The transducer(Pt100 probe and R/I transmitter) can measure between -25°C to 72°C. But I need the temperature transducer to be calibrated by an institute. The thing is that they calibrate…
cm64
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1
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3 answers
Supply Voltage of the Instrumentation Amplifier INA332 from TI
At page 2 on top left there is written "Supply Voltage, V+ to V- ......... 7,5 V"
Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIFIERS
Is that the supply range? Or is it meant like maximum V+ = 7,5 V and V- = 7,5 V (range would be 15 V)?
I…
keep it simple
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0
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2 answers
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 how to do it over ethernet without the overhead of…
gwideman
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0
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1 answer
What parameters dictates whether termination is required in this case?
After reading this question I was wondering about another scenario where the signal is not a square wave but a pulse train with short ON time.
As far as I understand, if we have a 3 MHz pulse train signal with 50% duty cycle which is coupled by a…
user1999
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0
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1 answer
Compensate Temperature with pressure sensor?
I'm using this pressure sensor and when I submerse the pipe inside the liquid the pressure should be held constant ,but due to the temperature the sensor keeps giving different values after certain time.How can I compensate for this ,Mathematically…
0
votes
1 answer
What is RF switch used for in a lab equipment?
I'm only familiar with scopes, DMMs and a little spectrum analyzers.
But I couldn't understand what an "RF switch" is used for particularly in a characterization lab.
Can you give an example of its use and function and describe in layman terms?
GNZ
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0
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3 answers
A question about instrumentation
I have a 1kN force transducer which can output (through an amplifier) +/-10V for +/-1kN nominal force range and I sample it with a DAQ device which is 24-bit and has +/-10V range. The overall noise floor is 20mV rms.
Now my question is, using the…
GNZ
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