Wireless Technology
Wireless technology uses this type of electromagnetic wave for communication
What are radio waves?
A signal operating at 2.4 GHz has a wavelength of approximately this length
What is 12.5cm?
Bluetooth is designed primarily for this type of communication distance
What is short range communication?
Wi‑Fi is generally optimized for higher _____ than Bluetooth.
What is data throughput (date rate )?
Increasing the distance between transmitter and receiver generally causes this to decrease.
What is signal strength?
Increasing the distance between transmitter and receiver generally causes this to decrease.
What is signal strength?
The "G" in 5G stands for this
What is generation
Cellular Networks divide geographic regions into these areas?
What are cells?
The IEEE standard assocaited with WI-Fi
What is IEEE 802.11?
Unwanted signals that disrupt communication are called this.
What is interference?
Two common Wi-Fi frequency bands.
What are 2.4 GHz and 5GHz?
The object to be detected by an industrial detection sensor.
What is Target?
This can produce a stronger light energy than LEDs
What is an Infrared LED?
I*R
What is voltage?
The ratio of useful signal power to unwanted noise power.
What is signal to noise ratio (SNR)?
The security protocol replaced WPA and improves wireless security.
What is WPA3?
This is used for size detection and couting parts
What is a limiting switch?
This is capable of detecting clear objects at a specific distance.
What is a convergent optical sensing method?
Voltage * Current
What is power?
Buildings, walls and furniture can cause radio waves to do this.
What is reflect or scatter?
Compared to 2.4GHz, signals at 5GHz typically have more bandwidth but generally disadvantages.
What is short range or poorer wall penetration?
This can reliably sense the exact position of a target that is coated with dirt.
What is an inductive proximity detector?
This method of light detection provides the highest level of optical energy.
What is opposed sensing method?
This method of light detection uses a series of sensor to form a light curtain.
What is opposed sensing method
Engineers add extra bits to transmitted data to detect and correct transmission erros using this concept.
What is error correction or redundancy?