This section provides an overview for frequency meters as well as their applications and principles. Also, please take a look at the list of 11 frequency meter manufacturers and their company rankings. Here are the top-ranked frequency meter companies as of September, 2023: 1.Selec Controls, 2.KDS INSTRUMENT (KUNSHAN) CO., LTD, 3.Vteke Electric.
A frequency meter is an instrument that measures signal frequency.
It is an electronic device or component that outputs frequency as a number, also called a frequency counter. It measures the number of periodic pulses of an electrical signal and outputs the frequency.
A frequency meter is used in many applications related to high-frequency radio technology to measure frequency signals with high accuracy. They provide accurate and precise measurements and allow detailed analysis of signal waveforms and frequency characteristics. The frequency meter is widely used in various areas of electrical testing to measure the frequency of repetitive signals.
Frequency meters are widely used in the fields of electrical engineering and communication engineering.
A frequency meter is widely used to evaluate the reliability of electronic equipment. Examples include noise generated in power circuits and evaluation of the operation of frequency conversion circuits.
Frequency meters are also used to evaluate frequency characteristics. For example, frequency response can be evaluated in acoustic equipment, such as amplifiers and speakers. They are also used to evaluate the characteristics of frequency filters.
Frequency meters are also important measurement instruments in communications engineering. For example, they are used to adjust the frequency of transmitters and to evaluate the frequency of receivers. They are also used for fault analysis in wireless communications.
A frequency meter is also used for power measurements. For example, they are used to evaluate the frequency of generators and transformers. They are also used to evaluate the efficiency of AC power in frequency converters.
A frequency meter is also used in system design. For example, they are used to evaluate the frequency response of an entire system or to design a frequency conversion circuit.
A frequency meter is used as a monitor to check the reflection and absorption of sound in an acoustic space, to create a uniform sound field, and to check the strength and frequency of vibrations emitted from equipment.
For example, a complex acoustic space is created in a car interior by sound reflection from the windshield and rear glass, sound absorption from the seats and floor, and engine noise. To create a comfortable sound, the frequency and signal strength distribution are checked with a frequency meter, and the highs and lows are strengthened or weakened with an equalizer to create a comfortable acoustic space.
A frequency meter is often used in combination with other measuring instruments, such as oscilloscopes. Frequency meter types include desktop, portable, high frequency, low frequency, RF (radio frequency), and microwave.
A frequency meter consists of a waveform shaping section, a reference time pulse generator, a gate section, and a display section. The input signal is shaped into a pulse train in the waveform shaping section, and a pulse with a precise time width of 0.1 or 1 second is generated in the reference time pulse generator.
The gate section switches the input signal shaped into a pulse train with pulses having this time width. The number of pulses obtained here is processed and output to the display section. For example, if the time width is 1 second and the number of input pulse trains is 10, the frequency is 10 Hz.
Care must be taken when measuring, because if noise is included, the pulse waveform may become unstable and the wrong frequency may be measured.
The advantage of a frequency meter is that it can measure not only frequency but also period, duty, etc. A frequency meter is a measuring instrument to check the performance of electronic circuits by digitally displaying the frequency.
They can be used as monitors to adjust the oscillation frequency to a predetermined value or to check the oscillation stability (frequency jitter). The principle is utilized in vibration and acoustic measurements. In this application, the input signal is Fourier transformed and displayed graphically as a spectrum.
Other applications include waveform observation and signal processing in the electronics field, ultrasonic measurement in the medical field, electromagnetic wave measurement, environmental surveys, and many others.
A frequency meter comes with an application that not only quantifies the frequency of the input signal but also graphs it. While it is not possible to check for wobble or noise components using only numbers, FFT operations can be used to isolate the frequency components and graph their respective intensities.
Applications are provided to express signal quality in an easy-to-understand visual manner, such as displaying the strength of side lobes that appear next to the main signal, averaging the input signal to remove abrupt noise for accurate measurement, and expressing the wobble of the signal in terms of color shade.
*Including some distributors, etc.
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Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
Yokogawa Test & Measurement Corporation was founded in Japan in 1954. Yokogawa currently serves a wide array of industries including the aerospace, automotive, consumer electronics, semiconductor and telecommunications industries with both hardware and software solutions. Among Yokogawa’s suite of products are oscilloscopes, voltage probes, power analyzers and meters, data acquisition tools, optical test equipment, a wide variety of handled meters, calibrators, and testers; analog instruments, and manometers.
KDS Instrument (Kunshan) Co., Ltd., established in May 2011, is a manufacturer and supplier specializing in power distribution panel-mounted instruments. The company’s product portfolio includes panel meters, shunts, and other related products. They also offer AC and DC voltmeters, ammeters, frequency meters, power meters, and more for power grid applications. All their products are made made to international standards with CE and ISO 9000 certification. The company offers technical support and after-sales service to their global customers across different markets including North and South America, Europe, Asia, and Africa.
Selec Controls, founded in Navi Mumbai, Maharashtra, in 2000 is a manufacturer of Electrical Measurements and Protection, Meters, and, Automatic Power factor controllers. The company's product portfolio includes Indicators and Controllers, Digital Timers, Temperature Controllers, Speed Monitoring Relays and Humidity and Temperature Controllers. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company has 200+ distributor network and global sales offices.
Zhejiang CHINT Instrument & Meter Co., Ltd. (Chint Meter), founded in 1998 and currently a subsidiary of Zhejiang Chint Electrics (CHINT Group), is a Chinese manufacturer headquartered in Hangzhou, Zhejiang, specializing in smart metering solutions. The company's product portfolio includes energy meters, such as electromechanical meters, single-phase prepaid and smart meters, three-phase prepaid and power meters, three-phase energy meters, and smart energy meters. The company also provides both smart and mechanical gas meters, alongside various water meters. The company further extends its offerings to industrial instruments, featuring analog and digital panel meters, portable meters, as well as humidity and temperature meters.
VTEK Elektrik is a manufacturer and distributor of electrical systems and components based in Istanbul, Turkey. The company was established in 1985 and has a specialized product portfolio including transformers, and protection relays. miniature relays, cam switches, and converters. These primarily supply clients in the power generation, renewable energy, and industrial automation industries. From its state-of-the-art facility, the company also offers a range of services, such as commissioning, quality control, calibration, and prototyping. VTEK Elektrik is ISO 9001:2015 certified and has an international presence with distributors in different countries.
ELEQ is a Dutch electrical measuring instruments and connection systems manufacturer founded in 1946 and based in Steenwijk. The company's product portfolio includes energy management tools like split-core and medium voltage transformers, connection boxes engineered from various materials, and measuring instruments as well as transducers that help monitor currents or voltages. These smart electrotechnical instruments protect, measure and connect electrical energy for clients in the energy, public lighting, and industrial automation sectors. ELEQ also provides its clients with customized solutions and technical support from its ISO 9001 and ISO 14001-certified facilities.
TEKTRONIX, INC., founded in 1946, is a manufacturer of measurement solutions used in 3D sensing, EMI/ EMC testing, high-speed serial communication, material science engineering, and Wireless & RF testing. The products include oscilloscopes & probes, signal generators, margin testers, multimeters, and analyzers. The company's products are used in advanced research, aerospace & defense, automotive, power semiconductor, and medical industries. The Bracknell Berkshire company offers calibration, repair, asset management, package assembling, and testing services following NEMA, HAlT & HASS, environmental, and shock-vibration testing.