Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with measurement
Search options answers only
not deleted
user 50733
Measurement is the assignment of numbers to objects or events. All measurements consist of three parts: magnitude, dimensions (units) and uncertainty.
1
vote
A confusion on two single-ended measurement systems
If you measure with respect to ground, and due to currents flowing between chassis, the ground 'here' is a few mV different from the ground 'there', you will see errors imposed on your measurement. … Having a non ground referenced measurement avoids that difference, without the cost of two wires per channel. …
- 174k
4
votes
Accepted
Understanding "dBc" in the context of IM3
This means that instead of taking a single measurement, you should take a measurement at a range of power levels, and plot the IPs against the main tone power. …
- 174k
3
votes
Gain-Phase measurement without dedicated equipment
What you're buying in the Bode-100 or the 4194 is the convenience of having it all in one box, easy to use, with specified performance.
When you roll your own, with a signal source, two ADC channels, …
- 174k
1
vote
How to measure the amplitude of noise?
I'm glad to see you said the noise was 'kinda Gaussian'. If you had asserted that the noise was Gaussian, I would have been busy warning the map is not the territory, the noise can do what it likes, h …
- 174k
0
votes
Accepted
Capacitor test mode in ICT
As stated in the material you quote, DC source is used for measuring 'large' capacitors.
AC impedance is therefore used for measuring 'small' capacitors.
Check the ICT machine specifications to see wh …
- 174k
7
votes
Measuring nA leakage current
My issue is my meter's measurement accuracy is only around 10uA,
Maybe on your lowest current range perhaps. Have you looked carefully at what your lowest voltage range will do? …
- 174k
1
vote
Measuring Current with a Shunt Resistor and an In-Amp
As the ISO130 has a common mode output of about 2.4v, and low impedance outputs that can supply 1mA, the following diff-amp will work
simulate this circuit – Schematic created using CircuitLab
…
- 174k
4
votes
Reading dynamic resistance values over a wide range
In an Arduino, pins are high impedance when set to 'Input', and a good low output impedance when set to 'Output', capable of sinking >20mA. This enables you to split up the range, and measure each opt …
- 174k
1
vote
Experimental material impedance measurement
your Delta model, the easiest way to get numerical values for all three resistors is to treat it as a Wye model, measure the terminals pair-wise which gives you three equations of the form Rx + Ry = measurement …
- 174k
1
vote
Accepted
Measuring phase difference between digital signals
If this is a one-off evaluation, then manually is probably the least worst way to do it. But you could use the scope better to help you. The eye is very good at seeing texture. I suggest changing the …
- 174k
2
votes
DFT: Designing a Schematic / PCB to allow measuring resistor values
Yes, it is possible to measure resistors on a PCB individually, even when other components are connected across them, without needed to open switches, subject to certain restrictions. It's easier if y …
- 174k
7
votes
Accepted
How to measure EMI without special equipment?
Without locking to the spread spectrum code to reduce the effective measurement bandwidth, the signal level is waaay below the ambient thermal noise. … This will enable you to get a qualitative measurement of whether it is indeed the dashcam, and then how well anything you do to it works. …
- 174k
2
votes
How do I calculate the minimum deflection I can sense with a strain gauge, like the BF350-3AA?
There are several limits to the smallest useful deflection.
One is given by the noise of the system. That varies with the amplifier/ADC that follows the strain gauge, and the bandwidth you are using. …
- 174k
16
votes
Measuring small movements of a needle and syringe
I suspect a student struggling to control the position of a small syringe would be distracted by a large measurement arm, no matter how well balanced and low friction. …
- 174k
3
votes
Conventional way to measure Li-Ion cell capacity?
The cell capacity is dependent on the charge voltage, the discharge rate, and the end point voltage. The charge voltage and end point voltage also affect the cell lifetime.
This means there is no one …
- 174k