Microwave Sensor Supplier
Microwave sensor suppliers provide a wide range of motion sensors. These sensors detect movement and switch on lights only when necessary. They help you to save energy costs and make your lighting system smarter.
These sensors also have many advantages over PIR (passive infrared) sensors. They can operate in a wider range of temperatures and have a long lifespan.
High Sensitivity
A microwave sensor is a simple gadget instrumental in enhancing security within your premises. Its functionality is very different from that of a PIR (passive infrared) sensor. Microwave radiations emit electromagnetic waves that get reflected in your receiver, and your microwave sensor analyzes the reflected microwaves to identify alterations in the radiation pattern. If an intruder or moving object moves near the sensor, it will alter the electromagnetic waves emitted by the microwaves. This is how the sensor detects motion and sends a signal to the light control system.
In a recent study, scientists have developed a microwave radiation sensor with 100,000 times higher sensitivity than the commercially available sensors. They made the sensor by utilizing graphene, which is a two-dimensional, one-atom layer-thick material with exceptional thermal response. The researchers induced a temperature rise in the graphene when the microwave radiation hits it, and this produced a low-frequency voltage at the sensor output.
The researchers also used a miniature channel made of PMMA to reduce the value of parasitic capacitance emerging from fringing electric fields around the sensor. This resulted in a shift of the resonance frequency toward lower frequencies, indicating a higher sensitivity. The results showed that the proposed sensor has a security lights sensitivity of 1.45%, which is one of the highest reported in the literature. In addition, the sensor is compact and has a low power consumption.
Low Power Consumption
Microwave sensors consume very little power, which allows them to operate for long periods of time. They can save businesses significant energy costs by detecting motion and turning the lights off when rooms or areas are unoccupied. According to Lal Changlani, director at Sensinova Lighting, this can cut a substantial amount of energy wastage in commercial spaces.
In addition to being economical, these sensors are also effective in the presence of moisture and dust. This makes them suitable for applications in harsh environments. In contrast, traditional sonic or mechanical flow monitors are more susceptible to such conditions.
The thermoelectric MEMS microwave power sensor with inline load self-detection function consists of a coplanar waveguide (CPW), two terminal load resistors, a thermopile and two calibration resistors. The CPW and the load and calibration resistors are connected to form a voltage divider circuit. The sensitivity of the sensor can be enhanced by increasing the distance between the hot and cold ends of the thermopile.
The sensors are equipped with electronic circuitry, which includes an amplifier and filter to magnify the signal signature and minimize background noise. The amplified signal is then compared to fixed reference thresholds by the comparator circuit. Once the comparator circuit verifies that the signal meets the thresholds, it signals a light-off event. This enables a building’s electrical system to automatically switch off the lights when a room or area is unoccupied. Kuwait-based Baiti Synergy incorporated this technology in its office cubicles and cabins to reduce energy consumption, which resulted in an immediate cost reduction and quick payback on the investment.
Wide Range of Applications
The range of applications for microwave sensors is vast. The technology Microwave Sensor Supplier finds use in areas from detecting a moving object in a security system to observing the breathing rate of a patient in a hospital. Different applications require different capacities from the sensor. The size of the sensor also matters. Some microwave sensors are large while others are small and light.
Microwave sensor manufacturers utilize various technologies and production processes to deliver top quality products at reasonable prices. This is possible because of the availability of affordable raw materials, world-class production capabilities, and established supplier relationships. In addition, bigger companies have the advantage of being able to get better deals from suppliers and enjoy cost advantages due to scale of production.
These sensors are used in many applications such as office lighting, securing storage rooms, and controlling electric appliances. They are especially effective for areas that have intermittent occupancy throughout the day. The sensors are capable of saving up to 30 percent of electricity expenses depending on the mode of energy usage and how often the lights are triggered.
Other uses include radar systems for intrusion survey and detection, nursing care robots, and more. For example, Wadeco, a Japan-headquartered industrial microwave sensor supplier, offers a range of sensors for crane proximity monitoring that ensures a safe distance between two cranes or a crane and a nearby building.
Easy Installation
Microwave sensors are easy to install and work well with a variety of LED light fixtures. They can be mounted at the ceiling or in a wall, and most are equipped with mounting brackets to allow for quick installation. They can also be integrated with other controls to make them work together to save energy. For example, a microwave sensor can be connected to multiple lights to make them turn on or off or dim simultaneously. This is called group control and is a popular feature among commercial offices.
Using a microwave sensor to switch off lights when they are not needed is one of the easiest ways to reduce electricity expenses. According to Lal Changlani, director of the Sensinova Lighting company, these sensors can save 30-80 per cent of energy expenses by automatically turning off lights in areas that are not used. They can be especially effective in areas like corridors and staircases that receive intermittent traffic throughout the day, so they are only occupied for short periods of time.
The 20-MC613VDRC-MWAVE is a high-quality microwave sensor that provides multiple functions, including a 3 – step dimming function. It is compatible with 1-10V dimmable drivers and ballasts. It has a wide detection area, a long standby period, and is suitable for use in warehouse applications. This sensor is also easy to mount with a surface or flush mount fixture, and it can be installed with any LED vapor tight high bay.
