29 1 X ᱯᱟᱣᱟᱨ ᱜᱨᱟᱯᱷ ᱨᱮᱴᱤᱝ

ᱣᱤ ᱮ ᱨᱮ ᱔-᱒ ᱥᱤᱨᱤᱡᱽ ᱨᱮᱭᱟᱜ ᱢᱩᱪᱟᱹᱫ ᱨᱮ ᱯᱟᱣᱟᱨ ᱥᱞᱟᱭᱤᱰ ᱥᱮᱞᱮᱫ ᱢᱮᱱᱟᱜᱼᱟ ᱾

ᱰᱤᱡᱤᱴᱟᱞᱟᱭᱡᱮᱥᱚᱱ ᱨᱮᱭᱟᱜ ᱜᱩᱱ ᱠᱚ ᱫᱚ ᱟᱹᱰᱤ ᱜᱷᱟᱹᱲᱤᱡ

Digital multimeters can form basic forms such as voltmeter, ammeter, ohmmeter, capacitance pen, etc. by measuring the replacement of the selector switch, which are respectively used to measure DC voltage, DC current, AC voltage, AC current, resistance, capacitance, etc.

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When measuring the DC voltage, by measuring the replacement of the selector switch, the circuit constitutes a DC voltmeter, as shown in Figure 1. Three resistors with resistance values of 1R, 9R, and 90R respectively form a voltage divider. The measured voltage U is added between the A and B ends of the voltage divider. The A terminal is positive and the B terminal is negative. The digital meter (200mV digital voltmeter) only measures the voltage on the sampling resistor, and the sampling resistor can be a part of the voltage divider or the whole of the voltage divider. , and change the sampling ratio to change the range.

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When measuring the direct current, by measuring the conversion of the selector switch, the circuit constitutes a direct current ammeter, as shown in Figure 2. Sampling resistor R constitutes a current/voltage converter. The measured current I enters from terminal A and exits from terminal B. A voltage drop UR will inevitably occur on the sampling resistor R, ROI 1993 ᱫᱚ impoption impoption impoption impoption impoption impoption impoption a } } } } } } } ___________________________________________________________________________________________________________________________________________________________ ᱨᱚᱠᱷᱟ ᱪᱤᱛᱟᱹᱨ ᱨᱮ ᱵᱚᱫᱚᱞ ᱟᱠᱟᱱ ᱪᱤᱛᱟᱹᱨ ᱨᱮ ᱵᱚᱫᱚᱞ ᱟᱠᱟᱱ ᱯᱷᱤᱪᱟᱨ ᱠᱚ ᱨᱮ ᱵᱚᱫᱚᱞ ( ᱪᱤᱛᱟᱹᱨ ᱪᱤᱛᱟᱹᱨ ᱨᱮ)᱾

ᱦᱚᱜᱽᱥ: 2019, ᱜᱞᱩᱠᱚᱡᱽ, ᱵᱟᱡᱮᱴ, ᱫᱟᱢ, ᱜᱚᱱᱚᱝ, ᱠᱨᱮᱰᱤᱴ, ᱠᱚᱢ ᱫᱟᱢ, ᱠᱚᱢ ᱫᱟᱢ ᱛᱮ ᱵᱮᱱᱟᱣ ᱟᱠᱟᱱ, ᱱᱚᱶᱟ ᱠᱚ ᱫᱚ ᱵᱟᱡᱟᱨ, ᱵᱟᱡᱮᱴᱤᱝ ᱚᱯᱷᱚᱨᱥ, ᱜᱞᱩᱠᱚᱡᱽ ᱨᱮᱭᱟᱜ ᱜᱩᱱ ᱠᱚ ᱩᱫᱩᱜᱟ᱾