Microwave Sensor Supplier
Microwave Sensor Supplier
Manufacturer of sensor components for industrial automation. Products include photoelectric, capacitive & microwave sensors. ISO 9001:2008 certified.
Microwave occupancy sensor with a 360deg detection angle for motion sensing to automatically control LED vapor tight high bay fixtures. Features adjustable sensitivity, delay & standby time. UL listed. ENERGY SAVINGS.
Detection Range
Microwave sensor manufacturers can produce sensors that detect motion from a range of up to 8 meters. This makes them suitable for use in large areas, including outdoor spaces. They are also capable of penetrating walls and other non-metallic objects, making them more versatile than other types of sensors. They are also highly reliable and can operate in challenging environments such as dirty, dusty, polluted, gusty, poisonous or other unpleasant conditions that would otherwise cause other types of sensors to fail.
They can be used to control lighting, security systems and other appliances in a variety of settings. For example, they can be used to turn on lights in hallways or stairways when someone enters the space. They can also be used to provide energy savings by reducing the amount of time the lights are on. These sensors are often installed in warehouses, offices, and other commercial spaces.
This microwave sensor is designed to be a retrofit solution for existing switchboards and does not require any additional power sources. It uses a Doppler effect principle to detect changes in microwave signal levels that are caused by moving objects and converts those signals into a digital output of 0 or 1 to switch the load on or off. It can be paired with vapor tight high bay fixtures to allow for motion activation and daylight contribution to reduce wattage consumption.
Sensitivity
Microwave sensors can be extremely sensitive, enabling them to detect the slightest movements. However, these sensors can also be overly sensitive and trigger false alarms, such security lights as those caused by a swaying tree branch or other electronic interference. In addition, they consume more power than PIR sensors and require an extensive wiring.
A compact, ultra-sensitive planar microwave sensor based on an electric LC resonator has been designed and demonstrated. The core sensor is fabricated on an FR-4 substrate with a simple fabrication process and integrated into a polymethyl methacrylate (PMMA) microfluidic channel for straightforward liquid delivery. The bare sensor’s resonance frequency occurs at 4.14 GHz while empty and shifts to 0.88 GHz when the sensor is filled with methanol or ethanol with deionized water. The sensitivity of the sensor is evaluated by measuring the changes in the resonance frequencies of the bare and methanol/deionized water mixtures. The quality factor and (S_21) magnitude of the MUT are also measured for each scenario.
The sensitivity of the sensor is primarily determined by the resonant frequency and the material properties of the sample under test (SUT). Consequently, the SUT’s volume, permeability, and permittivity affect the sensor’s resonant frequency. However, the resonant frequency can be optimized by adjusting the CC-SRR and SC-SRR in the ground plane. Moreover, the sensitivity of the sensor can also be improved by applying a DC voltage to the sensor’s ground plane.
Delay Time
The delay time is a function that allows you to adjust the time between the signal detected and light auto-on. When motion is not detected over the preset delay-time, the sensor will stop working to save energy and prevent unnecessary lighting. You can also reduce the delay-time for less power consumption. The sensor uses an open saturable core to generate the second harmonic signal which is proportional to changes in the Earth’s magnetic field. The signal is fed to the electronics unit through a triangular wave excitation current. The electronics convert the signal into a pulsed output to control the load.
Power Consumption
Microwave sensors consume zero standby power and are a green solution to energy-saving. They are a great alternative to PIR sensors, which use 1-2 watts of electricity continuously. They also offer a greater detection range and are more accurate. In addition to their low power consumption, microwave sensors are very reliable. They are not prone to false alarms and are more consistent than the PIR sensors.
Microsensors are very popular for energy savings in commercial buildings and office spaces. They can save up to 40 per cent of electricity expenses for businesses. They are able to detect motion and turn on Microwave Sensor Supplier the lights automatically when people enter or leave a room. They can also be used to control other devices, such as electric heaters.
Traditional microwave power sensors use diodes, thermistors, or thermocouples to measure the microwave power. They have disadvantages, such as high sensitivity, non-linearity, and temperature drift. However, the latest MEMS technology is enabling better performance and lower cost.
A thermoelectric MEMS microwave power sensor with the inline self-detection function is proposed. It consists of a CPW, pads, high-impedance wires, and two terminal load resistors. The characteristic impedance of the CPW is designed to be 50 O using ADS and optimized by HFSS software. The terminal load resistors and the thermopile form a voltage divider circuit to realize the inline self-detection and calibration functions.
