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  1. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Let me explain where the idea of measuring the inductance of 4cm copper wire came from. Accidentally on the Internet came across an image of a similar dimension. 10kHz. 4cm. 0.03uH
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The measurement is so small inductance that it is practically not available to Russian tweezers HB-14. 0.0115nH.
  3. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The result presented is the price of firewood in Canada. LCR Pro1 correctly measured everything with the greatest possible accuracy.
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Measurement of inductance at a frequency of 100 kHz. Such small values have not yet been measured in my practice. A short piece of copper wire. LCR Pro1. 0.0931nH HB-14. 000.8nH
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    LCR Pro1. Inductance decreases clearly in proportion to the reduction in length. This indicates the correct operation of the tweezers, high accuracy and resolution. Everything as stated in the certificate. 1cm. 6.5648nH. HB-14. No change. This indicates hardware and software problems, low...
  6. caps

    MASTECH MS8911-Smart SMD Tester(R/L/C)

    Very good. Great job. Capacitor 10pF. 10.4pF.
  7. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Check the work of tweezers on small inductances. Copper wire. Great result. LCR Pro1. 4cm 25.501nH 2cm 12.793nH HB-14. Very bad result. Not suitable for measuring such inductances. 2cm 0,01uH 4cm 0,01uH
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    The simplest definition of VOLTAGE you can come up with

    Information taken from here. Digital Multimeter Principles by Glen A. Mazur, American Technical Publishers.
  9. caps

    The simplest definition of VOLTAGE you can come up with

    Voltage, provided by an energy source such as a battery, is what causes current to flow.
  10. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Let's see how Russian tweezers HB-14 measure small capacitors operating at a fairly high voltage. New capacitor 1uF/ 450v. ESR-39.51Ohm. Very bad result, which suggests that tweezers poorly separate the active and reactive components. Therefore, it is impossible to trust such tweezers; it is...
  11. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    I demonstrate complex in-circuit measurements of capacitors of very small capacitance. 10pF ceramic capacitor. You can clearly see that Canadian tweezers are much more accurate than Russian tweezers. 10.284pF. 13.90pF.
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    There are radio amateurs for whom the measurement of small capacitors is of great interest. Most likely, this is a rather specific field of measurement that you rarely encounter. OK, who cares. Capacitor 1pF. 1.0247pF. Very good. :)
  13. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    In my long-term practice of measuring the ESR of film capacitors, there was an absolutely unique result, which could not be repeated for two years by amateur meters. Here I must say that there are practically no amateur constructions for measuring the true ESR of film capacitors. An...
  14. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    As it was supposed, in the Russian tweezers HB-14, the frequency of 100 kHz is purely sham. This is clearly seen when measuring the ESR of film capacitors of different capacitance. 100nF. ESR-0.000 Ohm 150nF. ESR-0.001Ohm 250nF. ESR-0.001Ohm 330nF. ESR-0.000 Ohm
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    LCR Pro1. Check resistance measurement on other ranges. Precision resistor 100 Ohm 0.1%. Precision resistor 10MOhm 1%. All perfectly.
  16. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The tweezers tips of the LCR Pro1 are very precise, gold-plated. Sharpened to the smallest size of SMD components For example, I made a photo of the part of the board where there are miniature resistors that can be seen only under a good magnifying glass. There are no markings. We select the...
  17. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    This Panasonic 330uF polymer capacitor has a very low ESR. According to datasheet, max. ESR-4,5mOhm. It was measured about 5 years ago right in the circuit with my precision tweezers. Since then, it was not possible to repeat the result obtained with any meter. And now, after 5 years, this was...
  18. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Measurement of the capacitance of electrolytic capacitors in the circuit. Motherboard. 2x 3300uF in parallel. The correct measurement. 6.2652mF Not correct measurement. 9003uF
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    MASTECH MS8911-Smart SMD Tester(R/L/C)

    You have completely confused me with your answer. When I said that low voltage does not affect, you said that this is nonsense. When I said that the influence of other elements is possible, you say that I have complaints about them. Actually, the manufacturers themselves do this, reducing the...
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    MASTECH MS8911-Smart SMD Tester(R/L/C)

    I do not know what relation the test voltage has to the parallel connection of capacitors. You probably meant the definition of ESR of parallel-connected capacitors. The test voltage can influence only when inductors or Schottky diodes are included in the circuit. But these situations have not...
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