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11 equipment items found
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
Gas sensors are devices used to detect the presence of gases in an area. Such sensors can be used to detect a gas leak or other emissions and can help shut down the process automatically by interfering with a control system. This is done in many different ways, one way is by sounding an alarm, which warns the operator in the area and indicates the location of the gas leak. What makes gas sensors ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
Conventional humidity sensors are primarily electronic devices. They can be designed to detect the amount of humidity present in the surrounding environment. These sensors measure the amount of humidity present in the environment by converting it to electrical signals, which is easily measurable. By comparing the live humidity with the maximum humidity at a given temperature at air, relative ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These sensors use radiation which passes through the volume of gas. In these sensors, energy from the sensor beam is absorbed in certain wavelengths, depending on the properties of a specific gas. For example, carbon monoxide absorbs wavelengths of about 4.4-4.5 micrometers. The energy of this wavelength is compared to a wavelength outside of the absorption ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These sensors include both active and passive systems. For active sensing, infrared imaging sensors usually scan a laser view of an entire scene and track for the backscattered light at the absorption line of the wavelength of a specific target gas. Passive imaging sensors, on the other hand, measure spectral changes in every pixel of an image and explore individual spectral signatures that ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
Biosensors are nowadays used in biomedical diagnosis as well as in a wide range of other areas such as point-of-care monitoring of treatment and disease progression, environmental monitoring, food control, drug discovery, forensics and biomedical research. A wide range of techniques can be used for the development of biosensors. Their coupling with high-affinity biomolecules allows the sensitive ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
Electrochemical gas sensors allow the gases to diffuse through a porous membrane to an electrode where it is either reduced or chemically oxidized. The determination of the amount of current produced is measured by the amount of gas that is oxidized at the electrode which indicates the concentration of the gas. Some customization in electrochemical gas detectors has been done by manufacturers, by ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These detectors use a high-photon-energy UV lamp to ionize chemicals in the sample gas. If the ionization energy of the compound is below that of the lamp photons, an electron will be ejected, and the resulting current is proportional to the concentration of the compound. The broad range of compounds can be detected at levels that range from a few ppb to several thousand ppm. Some detectable ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These are not gas detectors; they detect the aural emission created when a pressurized gas expands in a low-pressure area through a small outlet (point of leakage). These devices use aural sensors to detect the changes in the background noise of their environment. As high-pressure gas leaks generate sound in the ultrasonic range of 25 kHz to 10 MHz, the sensors can easily differentiate the ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
Ultrasonic gas detectors are mostly used for remote sensing in the outdoors where weather conditions can easily disintegrate evading gas even before it reaches the leak detectors that require interaction with the gas to detect it and sound an alarm. Ultrasonic detectors are commonly found on offshore and onshore oil/gas platforms, gas turbine power plants, gas compressors, metering stations, and ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These sensors use light reflection to detect changes in a polymer film matrix that contain a hologram. As holograms tend to reflect light at certain wavelengths, any change in their composition can generate a colorful reflection that indicates the presence of a gas molecule. Holographic sensors require sources of light such as a CCD detector or an observer, or white light or ...
Manufactured by:Seed NanoTech International Inc based inBrampton, ONTARIO (CANADA)
These sensors are commonly used to measure combustible gases that present an explosion hazard when concentration levels are in between the upper explosion limit (UEL) and the lower explosion level (EL). The reference and active beads containing platinum wire coils are located on opposite arms of a Wheatstone bridge circuit and heated electrically, up to a few hundred-degrees ...