High-Frequency Capabilities of Philtec’s D Model Sensors
Philtec’s D Model Sensors are renowned in the industry for their outstanding high-frequency performance. Designed to meet demanding requirements, these sensors exceed the standard frequency bandwidths, providing unparalleled operational excellence.
This article delves into the intricacies of Philtec’s advanced sensor technology, particularly focusing on the D Model Sensors’ frequency specifications and applications.
High-frequency Bandwidths
The high-frequency capabilities of the Philtec D Model Sensors distinguish them from standard sensor technologies. While the typical bandwidth for such devices peaks at 10 kHz, Philtec models boast standard bandwidths of 20 kHz, and can be extended up to 1 MHz for most models. This outstanding performance is pivotal for applications requiring precise and rapid data acquisition, particularly in high-speed environments.
Frequency Rolloff Chart
Philtec delivers a vital piece of documentation with its sensors called the Frequency Rolloff Chart. This chart illustrates the sensor’s frequency response, correlating the amplitude with frequency at various points. At the heart of these sensors’ performance lies the 2-pole Butterworth low pass filter. where the –3 dB point is usually called the cutoff frequency or corner frequency. This term has a very specific meaning: It is the frequency where the filter’s output power has fallen to one-half of its low-frequency value. The key is that –3 dB means 50% of the power, not 50% of the voltage.
The fundamental electrical power equation is:
P = V x I
In terms of voltage amplitude, assuming the same impedance: Ohm’s law says:
I = V / R
Substituting for I in the first equation:
P = V * (V / R) = V2 / R
So, if the resistance stays constant, power changes as the square of voltage.
In other words, at the –3 dB frequency, output amplitude = 70.7% of the passband amplitude.
Applications and Benefits
The extended bandwidth capabilities of Philtec D Model Sensors make them ideal for numerous industrial applications like aerospace, R&D and manufacturing. Philtec’s D Model Sensors are at the forefront of sensor technology, offering unmatched high-frequency operation that caters to the most demanding industrial applications.
About Philtec
Philtec Inc. is a manufacturer of custom fiber optic displacement sensor systems. Based in Annapolis, Maryland, Philtec has been providing innovative sensing solutions since 1988. These sensors operate in harsh environments, such as high temperature, cryogenic, high pressure, vacuum, and high magnetic field. Philtec sensors are built in the USA and sold worldwide. Their engineers can help you design special sensors uniquely meeting your requirements. Applications for Philtec’s sensors include:
- Engines
- Turbines
- Flight
- Computer printers and hard drives
- Oil Well Drilling
- Measurement
- Medical equipment
- Motion control
To request more information or a quotation for PHILTEC products, contact IL Photonics.