Circuits & Schematics: meter
Search for: "meter"
Search results: 105 Output: 1-10
- .. the end of the DI for a Simple log-scale audio meter (Ref. 1), I promised to show how to upgrade it to work better. With these fixes, it now has near-digital ...21-03-2024
- .. diode-drops’-worth in the process. (No, the V F s don’t match exactly, except momentarily, but no matter.) The meter now shows the log of negative-input half-cycle peaks, the needle falling back as the capacitor discharges ...22-01-2024
- .. verifier input to main amplifier output when operated in broadband mode. Example use cases for the magnetic field strength meter With all that in mind, let's explore some example use cases for this magnetic field strength meter. ...09-08-2023
- .. without cutting or disturbing the cable. To begin, we will need two simple analog instruments: A hand-held magnetic field meter with a field sensor probe A calibration reference verifier source capable of producing a magnetic field ...08-08-2023
- It is often desirable to determine a battery’s internal resistance to evaluate its condition or suitability for an application. Accurate battery resistance determination is complicated by inherent capacitive terms which corrupt results taken ...22-06-2023
- .. convenient to use toggle switches in this network, but of course, slide or rotary switches could be used. Peak detector and meter The peak detector is shown in Figure 5. Figure 5. A diagram showing the peak detector. It has three features ...25-05-2023
- .. V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A. It may be surprising to offer a purely analog meter when digital meters are now so widely used. However, it isn’t well-known that digital meters have analog ...24-05-2023
- .. proof-of-concept at 445 MHz. This circuit contains a couple of improvements over the standard L/C-with-whip field-strength meter. Tuned circuits aren’t easily constructed or controlled at UHF, so a transmission line is used to match ...23-05-2023
- .. a calibration stand so in an actual setup you probably want to put a good, calibrated ammeter, like a 5½ digit lab meter, in line with the calibration stand. Also, if you don’t have a constant current power supply, just use ...27-12-2022
- .. Figure 2 shows. Figure 2. An LED driver provides current for the LED under test. When S 2 is in the upper position, the meter measures voltage across R 1 , a 1-kΩ resistor; the meter displays a negative-voltage-drop value. R 1 ...30-11-2022
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