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Questions tagged [test]

A definitive procedure that produces a test result.

26 questions with no upvoted or accepted answers
2 votes
0 answers
203 views

Electrochemical Gas Sensor Potentiostat Circuit

I guess this is more of a review request than a specific question, but I was wondering if anyone has any experience with electrochemical sensors and the required circuits for gaining accurate ...
RSA5000's user avatar
  • 21
1 vote
0 answers
60 views

How do I know that the isolation tester is doing its job?

I am measuring the isolation resistance of a device where the measured value is within the range of just measuring with the test probes hanging freely in open air. 1 kV gives values in gigaohm range. ...
ISbit's user avatar
  • 23
0 votes
1 answer
30 views

Checking battery capacity of 7 amp 12 volt AGM batteries for UPS

I have several 1000 watt Triplite sinewave UPS. The batteries had a date code of 2021 and testing with an 800 watt resistive load ,two heat guns,I was getting around 3 minutes run time,specs state ...
Tom Schulze's user avatar
0 votes
0 answers
33 views

Double pulse testing the first transients on the current

I would like to comprehend what represents the first pulse on the ID current of the LS and HS in double pulse test configuration. I have the circuitry as shown: LS is my active switch, when I turn ...
Kurt Müller's user avatar
0 votes
0 answers
33 views

Parametric or Template test by Ethernet Compliance Test

I am trying to design this part of TC6 from Ethernet test fixture board. As I dont need rest part of the parts for my test. Can someone tell me what are the loads are? Here three different loads can ...
Alok's user avatar
  • 1
0 votes
0 answers
25 views

Determining specs for a power supply for a mystery motor

I have a set of 4 motors for an automatic backdrop system for a photographer studio. How can I determine what I need to run these? They would normally come with a box with switches that operate them (...
Brennan Arceneaux's user avatar
0 votes
0 answers
53 views

How can I test an LCD with an RGB port?

I want to test this LCD. When I connect its power, the message "no signal" appears on the screen. How can I send a simple signal to it for testing?
Kiani's user avatar
  • 21
0 votes
0 answers
27 views

RF test socket pin max power handling capability

Do RF test socket pins have a max RF test power handling capability specification? Most RF pins that these sockets touch do have this specification. However, I don't see it listed for socket pins. ...
Ted's user avatar
  • 21
0 votes
0 answers
65 views

Automated Hardware/Software Test

I am an Electrical Engineer and I don’t have a strong Software Engineering background. My problem is: I need to test several Smart home devices. For example: a door that opens and closes (also 2 ...
Caio Miguel's user avatar
0 votes
0 answers
458 views

DIY transformer winding, "Light bulb test"

I "hack" cheap "electronic transformers" for use as filament supply for my tube amplifier projects. They operate at about 50KHz so there is no audible hum (a particularly annoying ...
Joe's user avatar
  • 199
0 votes
0 answers
34 views

Why is insulation resistance is bad when absorption Ratio ≈ 1 and insulation resistance is good when absorption Ratio >1.25 or 1.3?

i will do absorption Ratio (AR) test for transformers in my job,and i know how to calculate the absorption Ratio AR=\$ \frac{R_{60}}{R_{30}}\$ \$ R_{60}\$=Insulation Resistance after 60 second test \$ ...
user16266657's user avatar
0 votes
0 answers
117 views

How to select an appropriate tone spacing for intermodulation distortion testing?

Intermodulation distortion measurements require (at least) two closely spaced carriers combined before going into the DUT. I understand the basic theory but have not grasped the effect of the choice ...
user3507914's user avatar
0 votes
1 answer
37 views

Vdd rise test in real life

I want to simulate VDD rise. For example I want to raise 1.2V VDD to 4-5 Volts for tens of microseconds and lower back to 1.2V. Suppose I have a high rise and fall time pulse generator (200-500 ...
bbilgic's user avatar
0 votes
1 answer
106 views

Vector Network Analyzers: Bode100 vs Keysight P5000A

I have been using Bode 100 machine earlier to measure Impedance and Phase of my piezoelectric transducer. The frequency range i work in is from 10kHz to 2.5MHz. I was just comparing this Bode100 with ...
user135156's user avatar
0 votes
1 answer
113 views

Built in Self Test - In Embedded memories

I am reading this thing called -BIST (Built in Self Test). I understand that, before a module enters its intended functionality, this BIST is made to run within the module. Once, this BIST is passed, ...
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