The analog instrument moves the pointer along the scale.

Pointer multimeter is famous for swinging the pointer to measure a certain range of values.

2.

An electronic circuit or mechanical device that can assume either of two stable states, especially a computer circuit for storing one bit of information.

An electronic circuit or mechanical device that can adopt either of two stable states, especially a computer circuit for storing a single unit of information.

3.

A phase-locked circuit composed of dedicated phase-locked chip CD 4046 and frequency divider chip CD 4040 is designed, plus a simple integrating loop filter composed of resistor and capacitor.

The actual phase-locked circuit consists of a CMOS dedicated digital phase-locked chip CD4046 (which integrates a phase detector and a voltage-controlled oscillator) and a frequency divider chip CD4040, plus a simple off-chip integrated loop filter consisting of resistors and capacitors.

4.

In this paper, the W-band hybrid integrated voltage-controlled oscillator is studied, and the design scheme of the first W-band microstrip integrated Geng Shi voltage-controlled oscillator in China is proposed. The simulation, assembly and test of voltage controlled oscillator are also given.

In this paper, the W-band hybrid integrated voltage controlled oscillator is studied. Firstly, the design scheme of W-band microstrip integrated Geng Shi tube voltage-controlled oscillator is proposed in China, and the circuit simulation design, fabrication and test are carried out.

5.

Then, a complete PLL frequency synthesizer is implemented, which integrates a voltage-controlled oscillator, a dual-mode prescaler, a frequency detector, a charge pump, three digital counters, some digital registers, control logic and a serial interface with the baseband processor.

On this basis, a complete PLL frequency synthesizer is realized, which integrates voltage-controlled oscillator, dual-mode prescaler, frequency discriminator, charge pump, various digital counters, digital registers, control circuit and serial interface with baseband circuit.

6.

In this design, the integrated chip ICL7 107 is used as the A/D conversion and latch coding module of the digital voltmeter, which makes the circuit design simple, highly integrated and reliable.

In this design, the integrated chip ICL7 107 is used as the A/D conversion, latching and decoding module of the digital voltmeter, which makes the circuit have the characteristics of simple design, high integration and high reliability.

7.

This paper introduces a method of designing digital voltage tester by using A/D converter and EPROM memory.

This paper introduces the method of designing digital voltmeter with A/D converter and EPROM memory.

8.

Methods: The DSB signal was generated by a single-chip voltage-controlled oscillator (MC 16 48), a single-chip function generator (MC 80 38) and a single-chip analog multiplier (MC 1496), and was output by the L C resonant circuit.

Methods: A single-chip voltage-controlled oscillator MC 16 48, a function generator MC80 38 and a single-chip integrated analog multiplier MC 1496 were used to form a carrier suppression amplitude modulation circuit, and the output was an L-C resonant network.

9.

J0408 DC voltmeter is suitable for students to measure the voltage in DC circuit in the laboratory.

J0408 DC voltmeter is used by school students to measure the voltage in DC circuit in experiments.

10.

This paper first introduces the background and block diagram of the frequency source, and then introduces the scheme of subharmonic sampling PLL and push-pull DRO.

This paper first introduces the design background and circuit scheme of frequency source, and then introduces the design process of phase-locked loop and frequency stabilized oscillator (Vt-DRO) with electrically tuned dielectric resonator.