|
 |
 |
 |
|
 |
|
 |
|
|
Last Updated
03/31/2019
Sitemap
|
|||||||||
Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
|||||||||
|
FREQUENCY COUNTER x FREQUENCY METER xx COUNTER xx ELECTRONIC TESTING xx METER (ELECTRONIC) Measuring a component's frequency response. Looks at four common sources of error. Includes a basic set-up for using a calibrated attenuator or "gain set" method of measuring frequency response. Accessory for the Heathkit IM-4100 frequency counter is used to measure capacitance. Calibrating frequency counters using a compact disc player and a test CD. How to interface the Intel 8253 programmable interval counter IC to any microprocessor to make a frequency counter. Program turns your COSMAC VIP microcomputer into a general-purpose, audio-range decade-frequency counter. Works in the 1 to 11,004 Hz range. Circuit to compare the frequency of a +5 volt supply to a preset upper and lower limit. How a CD4040 CMOS 12-stage ripple binary up-counter IC can be used to make a low-cost frequency divider, counter, or frequency meter. Digital frequency counter uses a Intersil type ICM7208, a companion ICM7207 oscillator chip, and the FND503 readout. Description of two new "counters on a chip" ICs from Intersil. The ICM7216/26 A&B and the ICM7216/26 C&D. Functional schematic is shown for a simple d.c. to 10 MHz counter. Antenna accessories for the ham shack. Part 7. R.F. signal generator, frequency counter, absorption wavemeter, frequency meter, and Lecher wires. Measuring frequency using a DVM (digital voltmeter) and this simple circuit. Build a 100-MHz frequency counter that offers bench top performance in a pocket-sized logic-probe case. Features an 8-digit LED display. Est. cost: $160 (kit). Build a 1-Hz to 10-MHz frequency counter. Est. cost: $40. The F/C meter. Measure frequency (1 Hz to 100 kHz) and capacitance (5 picofarad to 1 microfarad) over five ranges. Can also provide a frequency standard or be used as an oscilloscope calibrator, squarewave signal injector, a marker for audio-sweep generators, and a non-contact tachometer. Est. cost: $25 (kit). Super-simple frequency counter will measure from 1 Hz to 500 kHz with reasonable accuracy. Est. cost: $44 (kit). Portable 2-MHz digital frequency counter has a resolution of 1 Hz. Auto-ranging, digital, 50-MHz frequency counter. Est. cost: $47 (kit). 25-MHz frequency counter. Est. cost: $40. PC-based test bench. Part 2. 100-MHz digital frequency counter, an event/period meter, and a precision capacitance meter. Est. cost: $149 (kit). Circuit to detect the presence of a 15-kHz audio signal and then light an LED. Time-period adapter. Expand the measuring capabilities of your digital multimeter (DMM) with this easy to build and simple to operate accessory. Allows you to measure a low-frequency waveform accurately. Four essential test instruments. DC power supplies, function generators, bench digital multimeters, and frequency counters. An examination of their applications and key features. Using the 7107 integrated circuit chip. It is a combination analog-to-digital converter, reference voltage, timing clock, and decoder/driver circuit for 7-segment LED displays. Circuits shown for a digital voltmeter, DC current meter, resistance meter, capacitance meter, frequency meter, etc. Add a digital-frequency counter and display to your equipment (receiver, transmitter, test equipment, ...) using this PIC-based circuit. Est. cost: $50-$60 (kit). Frequency probe. Build this simple analog instrument to test the frequency of almost any type of waveform. The probe changes any waveform to a squarewave and converts it to a current that is read out on a standard panel meter. IC frequency dividers and counters. Part 1. Advantages, techniques and characteristics. IC frequency dividers and counters. Part 2. Includes simple decade counter using inexpensive IC's. A 50-MHz digital counter has the sensitivity and accuracy necessary to measure citizens band frequencies to the FCC requirements of 0.005 % (+ or -). Est. cost: $400. Frequency meter allows frequency measurements with an inexpensive oscilloscope. Basic frequency measurement methods. Make frequency measurements quickly and accurately using an inexpensive oscilloscope and a frequency source like an audio oscillator or signal generator. Elementary Electronics basic course in electricity and electronics. The origin, theory and uses of the frequency counter. 650-MHz amplifying prescaler probe converts a 50 MHz frequency counter to operate at higher frequencies. Est. cost: $50. Frequency counter. Build a 120-MHz (and better) hand-held, battery-powered, frequency only or universal digital counter. Est. cost: $50 to $75. CMOS phase-locked loops. Part 2. Practical applications of PLL circuits. Circuits include (1) frequency meter upconverter, (2) frequency-to-voltage converter, (3) frequency synthesis, (4) double sync oscillator, (5) adjustable tone detector, and (6) FM demodulator. Tunable audio-frequency meter circuit that can double as a variable audio-frequency tone decoder. Build a 1 Hz to 10-MHz frequency counter. Est. cost: $40. KIMCTR, a KIM-1 frequency counter/timer can be used with any microcomputer with comparable features. A frequency counter is constructed using an LSZ counter integrated circuit which is interfaced to a microcomputer with a hexadecimal display. Frequency-counter adapter for digital multimeters. Frequency-to-voltage converter enables almost any waveform up to 1 MHz to be read accurately on a DVM or DMM. Photo-Pulser. A phototachometer adapter for frequency counters. Used to troubleshoot an infrared remote control receiver, determine rpm of a spinning shaft, etc. Est. cost: $30. 10-MHz frequency counter can be used with any audio or r-f generator. Has an eight-decade LED display and features automatic decimal-point switching, leading-zero blanking, and a crystal-controlled timebase. A 10-Hz to 2.2-GHz general-purpose frequency counter. Est. cost: $100-$150. Making it count. Using a frequency counter requires some basic understanding of the instrument's capabilities and how it can be applied. Four-mode counter. (1) Frequency counter having a range of 2 HZ to 1 MHz. (2) Measure period of cyclic waveforms. (3) Measure randomly occurring events. (4) Measure width of single occurring positive-going pulses. Schematic for a simple R-F (radio frequency) meter for use with a CB transceiver. RF coil frequency finder. Build the electronic frequency meter, an ideal instrument for the accurate measurement of audio and ultrasonic frequencies. This direct reading unit measires from 100 Hz to 100 KHz. Fully transistorized and battery powered. Est. cost: $30. Direct readout IC frequency meter. Integrated circuits make possible this frequency meter having 5 ranges covering the spectrum from 5 Hz to 1.0 MHz. Est. cost: $12. Indicator for setting a frequency meter that uses headphones for a zero beat indication. Universal frequency counter. Seven counting ranges from 200 Hz to 2 MHz. Three automatically sequencing time bases, 0.1, 1 and 10 seconds. Est. cost: under $200. Part 1. Universal frequency counter. Seven counting ranges from 200 Hz to 2 MHz. Three automatically sequencing time bases, 0.1, 1 and 10 seconds. Est. cost: under $200. Part 2. A digital measurement lab instrument. Part 1. Main frame power supply and readout with 20 MHz frequency counter module. Build a 175-MHz prescaler to extend your 20-MHz digital frequency counter to work at 175-MHz. Est. cost: $35. Tips on attaching a frequency counter to an r-f source to make frequency measurements. Frequency measuring circuit can test electric power for 60-Hz frequency. Use to test utility or portable generator output. This front end circuit for a digital multimeter (DMM) will turn it into a frequency counter. This converter turns a digital frequency counter into a highly accurate digital VOM without modifying the counter. Has four ranges of ac & dc voltage readings (5, 50, 500, 1000) and five ranges of resistance (500 ohms, 5, 50, & 500 kilohms, 5 megohms). A low-cost audio-frequency meter. Measures frequency (sine or square waves) from 5 Hz to 50 kHz in four switch selectable ranges. Sensitivity is 0.2 volts rms. Sophisticated 1-Hz to 1-MHz frequency counter with 3-digit readout uses state-of-the-art CMOS chips. Est. cost: $30. Frequency-to-voltage converter circuit uses a 555 timer IC. LED bargraph readouts. Measure voltage, resistance and frequency with a row of lights which show trends (direction) better than meters with needles and less expensively than digital readouts. Circuits for several types of meters shown. An analog-to-digital temperature converter. Use your frequency counter to measure temperature to 0.1-degree Centigrade resolution. Range is 0 to 100 degrees. Est. cost: $10. Digital frequency readout for shortwave receivers. Programmable counters provide digital display of received frequency up to 30 MHz. Est. cost: $110. Build a 10-Hz to 1-MHz EPUT (events per unit time) meter. An inexpensive frequency counter that can measure sinusoidal and complex waveforms. Features an analog (meter) readout and uses the 60-Hz power line as a calibration reference. Portable, hand-held frequency counter will count from less than 100 Hz to more than 40 MHz and display the input signals on a six-digit multiplexed LED display. Est. cost: $50. A look at the MC 14553B 3-decade BCD CMOS counter chip that can be used to make various event and frequency counters. Circuit for a X100 frequency multiplier or prescaler which simplifies low-frequency measurements and allows them to be measured on most frequency counters. The F/C meter. A low-cost project that allows you to measure frequencies from 1 Hz to 100 kHz and capacitance from 5 pF to 1 uF over five ranges. Sub-audio frequency meter. Simple add-on circuit extends the range of your digital-frequency counter into the sub-audio region (below 100 Hz). Build a budget frequency/events counter that handles everything from 1 Hz to 100 kHz. Various alternatives are provided for triggering, power supply, etc. Est. cost: $80. Simple frequency counter circuit can be used to monitor signal frequencies from 100 Hz to 100 kHz in decade steps. Digital frequency counter-timer module (Optoelectronics, Inc. Model UTC-150) is described and evaluated. Handles 0.1 Hz to 150 MHz. Digital electronics course. Introduction to IC counter circuits. Learn how counters count, and how to use those IC's in your circuits. Super simple frequency counter displays from 1-Hz to 500-kHz on a 6-digit display. Est. cost: $44 (kit). Using digital frequency counters to measure the operating frequency of a radio transmitter. Op-amp based circuits. (1) One-way voice-activated intercom. (2) Analog audio-frequency meter. (3) Simple audio-power amplifier. Build a portable 2-MHz frequency counter with a resolution of 1 Hz. How to use the popular 555 timer IC in practical monostable multivibrator circuits. (1) Fixed-period timer. (2) Relay drivers. (3) Pulse generator. (4) 1-kHz linear-scale analog frequency meter. Build an auto-ranging, 7-digit, 50-MHz frequency counter. Build a 25-MHz frequency counter. Est. cost: $40. Build a frequency response tester for audio components. Displays the frequency response on an oscilloscope. Range is from 20 to 20,000 Hz. Build a four-mode counter. (1) A frequency counter with a range of 2 Hz to 1 MHz also measures (2) the period of cyclic waveforms, (3) occurance of random events, and (4) width of single occurring positive-going pulses. Simplified 3.5-digit frequency counter has four ranges (2000-Hz, 20.00-kHz, 200.0-kHz, and 2.000-MHz) and will work with almost any waveform. Fits into a standard logic-probe-type case. DTMF frequency counter lets you test the output signals from a telephone keypad. Est. cost: $16. Build a CB (citizens band) frequency counter that covers from 5 Hz to 30 MHz. Uses a five-digit LED to indicate what frequency you are using. Est. cost: $60. Build a portable 30-MHz frequency counter. Unit is powered by four NiCad batteries. Features a 4-digit readout that delivers 6-digit resolution. Est. cost: $40. Frequency counter in a probe. Part 1. Build this 0 to 750 kHz or 2.5 MHz to 10-Hz digital meter using the IC bricklaying technique. Frequency counter in a probe. Part 2. Audio test station. Part 1. A series of articles describing the operation, design and construction of Fidelity Sound's model 101 Audio Test System kit. The unit consists of a power supply, two sine/square/triangle function generators, pulse generator, frequency counter and AC voltmeter. Est. cost: $650 (kit). Build the OPTO-7000 600-MHz portable frequency counter from a kit. Est. cost: $100. Audio test station. Part 2. Power supply and timebase circuits. Audio test station. Part 3. Pulse generator, sweep shaper, and audio sweep generator. Audio test station. Part 4. Theory of operation and the construction of the voltmeter and digital frequency meter sections. Audio test station. Part 5. Step-by-step through the calibration process. Build this UHF prescaler for your frequency counter. Extend your counter's range as high as 650 MHz. Est. cost: $30. Frequency-counter preamplifier circuit boosts input signals from mixers, oscillators and IF strips. Use a 555 IC to build a voltage-to-frequency converter. Use your frequency counter to measure voltages up to 5 volts. Build this frequency multiplier for your counter. Add low-frequency (10 Hz to 40 kHz) accuracy by inserting this multiplier between test cable and counter. Est. cost: $41. Build this audio frequency response meter. Use it to tune up amplifiers, tape recorders, etc. Est. cost: $25. Frequency-boundary detector circuit will tell you whether or not an input signal is within a certain frequency range. How to use digital panel meters to measure voltage, current, resistance, capacitance, frequency, temperature, etc. Part 2. Temperature and frequency. All about frequency counters. What they do and how they do it. Part 1. Basic frequency counters. All about frequency counters. Part 2. Sophisticated uses of this versatile instrument. 1.2 GHz frequency counter. Build this high-performance, hand-held frequency counter that can measure from 1 Hz to 1200 MHz with a sensitivity under 25 mV throughout its useful range. Est. cost: $60. 100 MHz frequency counter offers bench top performance in a pocket-sized logic-probe case. Est. cost: $140. 1.6-GHz amplifier/prescaler for use with any high-quality, low-range (up to 50-100 MHz) frequency counter. Est. cost: $100. Bench top frequency counter project counts input frequency in decades, stores the results in latches, and drives an 8-digit multiplexed LED display. Turn your PC into a universal frequency counter. Build a frequency-counter board that operates in a Windows environment. Est. cost: $300 (kit). Part 1. Turn your PC into a universal frequency counter. Part 2. Sweep/function generator and frequency counter. Produces up to a 2.5-MHz square, triangle, or sine-wave output with a 1 to 20-volt peak-to-peak amplitude and a 20-dB attenuator. Has TTL or CMOS 0.5- to 15-volt peak output as well as a sweep generator and frequency counter that can read up to 150 Mhz. Est. cost: $300. Part 1. Theory of operation. Sweep/function generator and frequency counter. Part 2. Construction and use. Low-frequency AC-to-DC converter facilitates the measurement of AC signals with frequencies lower than 20Hz using a digital multimeter. | |||||||||
Copyright © by Norman Lathrop Enterprises. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means (electronic, mechanical, print photocopying, recording or otherwise) without the prior expressed permission of Norman Lathrop Enterprises, except as permitted by law. |
|||||||||