Information about Signal Filters

Find Signal Filters Manufacturers

About Signal Filters

Signal filters block or decrease (attenuate) unwanted frequencies or signal wave characteristics. There are several basic types of signal filters. Low pass filters block or attenuate signals at frequencies above a specified cutoff frequency. Conversely, high pass filters block or attenuate signals at frequencies below a specified cutoff frequency. Band pass filters block or attenuate signals at frequencies outside of the specified low pass and high pass cutoff frequencies. Often, these filters combine or cascade low pass and high pass filters. Band pass filters, which block a portion of the frequency spectrum, allow both lower and higher frequencies to pass. All pass filters, which can be used to introduce desired phase shifts in signals, allow all frequencies to pass.

Products & Services Related to Signal Filters

Bridge Conditioners

Bridge conditioners are instruments that provide excitation and support for strain gages, Wheatstone bridges, load cells, and sensors. They also include circuitry for signal conditioning, amplification, and processing.

Charge Amplifiers and Charge Converters

Charge converters and charge amplifiers convert the charge output from a piezoelectric, capacitive or other charge-producing sensor to a signal such as analog voltage or current.

Data Acquisition

Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.

Digital-to-Analog Converters

Digital-to-analog converters (DAC) transform a digital number into a corresponding analog voltage or current.

Frequency-to-Voltage Converters

Frequency-to-voltage converters accept a signal and convert its frequency to a corresponding analog voltage level.

Temperature Signal Conditioners

Temperature signal conditioners accept outputs from temperature measurement devices such as resistance temperature detectors (RTDs), thermocouples, and thermistors. They then filter, amplify, and/or convert these outputs to digital signals, or to levels suitable for digitization.

Voltage-to-Frequency Converters

Voltage-to-frequency converters accept a voltage signal and convert its analog level to a signal with a corresponding frequency.

Engineering Web: Signal Filters - Machine Design

Pages: 1 - 3 of 77

Filters \| Machine Design Filters New Product: Blade-server air filters
New Product: ICP acceleration signal conditioner \| Machine... Selectable low pass filters at 1k or 10k Hz, and high pass filters at 3 or 10 Hz are standard.
Spend Your Time Engineering, Not on Differential Equations \|... Signal-flow modeling Authored by Laurent Bernardin Vice President, Research and Development Maplesoft Waterloo, Ontario, Canada maplesoft.com

More >>