| Products > Test Equipment |
| LCR Tweezers test and analysis (HP-990, DT71, ST5S...) |
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| indman:
--- Quote from: Shannon on February 15, 2021, 06:47:55 am ---Disadvantages: 1. A little expensive 2. The structure design is the best LCR tweezers I have ever used, but there is still a gap between real tweezers 3. Although it is very accurate, it does not support self-calibration, which may be a disadvantage --- End quote --- Another disadvantages is that it does not have a test frequency of 100 kHz. Tweezers of similar cost have such an option. ;) |
| 2N3055:
I have LCR Pro1. It has self cal, diode mode that can light up LEDs, DC resistance mode... Goes to 100kHz, has setable voltage levels from 0,2 to 1 V and is a proper impedance analyser. Works well, and is quite accurate, form what I could verify.. As Tautech says, if I need to measure LCR, (SMD or not) it is first thing that I grab... It's just so convenient and easy... If it breaks, I would get another one quickly. |
| indman:
2N3055,can you make a video of how your tweezers work when measuring low impedances? I am interested in the stability of the readings of this device. 2-wire measuring circuit for tweezers! Stability 4 digits after the decimal point is a random number generator! |
| bateau020:
As I have the same tweezers (LCR pro1 plus), I can chime in. These tweezers are really stable when the device under test is not ambiguous. Sometimes you have to force it to C or L tests, but in general, the tool is very reliable, versatile and fast. I prefer it over my DE-5000 clone. Attached is a video of the tweezers on a 1 ohm resistor. (in a zip, don't know how to quickly add a video outside of pushing it to youtube or the like) As you can see, some noise, but not too bothersome. |
| indman:
bateau020,there is no noise on your video, but a random number generator in the last 2 bits. ;) Can you measure the resistance with 10-20 milliohms with your tweezers? |
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