Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

Virtual Frequency Meter

Virtual Frequency Meter

The virtual frequency meter is the program for PC and simple measuring instrument, which is connected to COM to port of the computer. The virtual device allows to measure frequency, period, time frames and score impulses.
Main parameters
Measuring mode
Frequency, Period, Time Frames, Score Impulses Metering
Frequency Metering
2.1.Analog Signal Metering Frequency range 0.1Hz – 250kHz
Amplitude range 0.1V – 30V
2.2.Digital Signal Metering Frequency range 0.1Hz – 5MHz
Low level 0.1V – 2.0V
High level 2.5V – 30V
2.3.Measuring Time 1mS,10mS,100mS,1S,10S
Period Metering
3.1.Time range 10mkS – 10S
3.2.Accuracy 0.1mkS
3.3.Measuring Time 1,10,100,1000 Periods
3.4.Input Signal Analog or Digital
Time Frames Metering
4.1.Time range 10mkS – 10S
4.2.Accuracy 0.1mkS
4.3.Input Signal Analog or Digital

The device is mounted in casing of 25pin connector.The device has supply from signal lines of COM port only. In programing mode it needs an external +5V. Components: resistors and capacitors – 1206type, transistors – BCW32L(npn) BC859C(pnp),diodes – BAS32L, zener diodes – BZX84-C4V7, quartz 10MHz.

Visit Here for more.

 

More Articles to Read

App note: Testing inductors at application frequencies
App note: Testing inductors at application frequencies
App note: Working voltage ratings applied to inductors
App note: Working voltage ratings applied to inductors
1968 Princeton Reverb Repairs
1968 Princeton Reverb Repairs
Skill Sunday: Power Over Ethernet for Arduino
Skill Sunday: Power Over Ethernet for Arduino
More on Color TFT Displays ~ The Big Ones — 240 X 320
More on Color TFT Displays ~ The Big Ones — 240 X 320
Vertical Pole Climbing Robot
Vertical Pole Climbing Robot
ESP8266 Weather Station Projects
ESP8266 Weather Station Projects
Single tube Lethal Nixie clock
Single tube Lethal Nixie clock
How to make a simple 1 watt audio amplifier (LM386 based)
How to make a simple 1 watt audio amplifier (LM386 based)
Flashing Binaries to DRA7xx Factory Boards Using Device Firmware Upgrade
Flashing Binaries to DRA7xx Factory Boards Using Device Firmware Upgrade

Top




Shares