Temperature influence on a differential capacitive rain sensor performances

Bord‐Majek, Isabelle; Tardy, Pascal; Ménil, Francis

doi:10.1016/j.snb.2007.02.014

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…To be less sensitive to temperature variations and other possible common mode interferences, a differential structure is preferred: one capacitor is exposed to water, the other is not and serves as a reference capacitor [47]. It consists basically of a pair of flat coplanar electrodes; the dielectric is composed of three parts: at the back side glass, at the front side air and/or water.…”

Section: Particular Applicationsmentioning

confidence: 99%

Capacitive Sensors

Regtien

2012

Sensors for Mechatronics

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Section: Particular Applicationsmentioning

confidence: 99%

Capacitive Sensors

Regtien

2012

Sensors for Mechatronics

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“…Most of the conventional rain sensors equipped on cars are based on the optical principle of total reflection [1]. There are also products that use capacitive technology [2][3] . Some researchers have also done plenty of work on the vision-based rainsensing system [4][5] .…”

Section: Introductionmentioning

confidence: 99%

Total reflection array infrared rain sensor

Han

et al. 2022

Second International Conference on Optics and Communication Technology (ICOCT 2022)

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Achieving safe and comfortable driving is the main target of in-vehicle electronic devices. Infrared rain sensors in vehicles are useful when raining. It works by reflecting harmonious light beams on the windshield. When raindrops land on the windshield, this harmony is disturbed, causing the beam intensity to drop. The system then activates the wipers to operate fully automatically. With the help of the rain sensor, drivers can focus on driving without distraction, thus enjoying a comfortable environment. So far, most of the domestic rain sensors are supplied from abroad, and only a few high-end cars are equipped with rain sensors. In this context, a reliable and inexpensive vehicle-mounted infrared rain sensor has become an urgent need. This paper introduces the basic principle of rain sensors and proposes a simple and reliable detection method. This work is dedicated to analyzing some interference factors that affect the rain sensor work and putting forward a series of solutions. Experiments show that the rain sensor meets the design requirements, and the detection principle and solution are feasible.

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“…Ello permite simular dicha presencia de caída de lluvia mediante la pulverización de agua con un difusor casero para el regado de plantas, por ejemplo. Y la acción que puede ejecutar el seguidor una vez detectada la presencia de agua, vuelve a ser adoptar la posición de protección o reposo ya mentada (Bord I. et al, 2007). Este módulo de dimensiones 20 mm x 20 mm, indica si el sensor está seco, húmedo o inmerso en agua (que representaría la lluvia) mediante la medición de la variación de la conductividad entre las pistas paralelas que conforman la parte expuesta al agua y que poseen una resistencia de 1 MΩ.…”

Section: Sensóricaunclassified

Desarrollo de un prototipo mecatrónico de seguidor solar parabólico para la edificación

Velilla¹,

Pablo²

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Energy production since the Industrial Revolution has focused on the use of fossil fuels (coal, oil and natural gas). On the other hand, the emerging powers (China, India and Brazil), eager to increase their economies and replicating the growth model of industrialized countries, are equally intensive in the consumption of previous raw materials. This inevitably creates two serious problems:• The progressive depletion of oil and natural gas fields (estimated life of 50 years) and coal (150 years). • The unbridled emissions of greenhouse gases (CO2 and CH4) that go hand in hand with the burning of fuels (particles present in the atmosphere in concentrations of 413 ppm, already responsible for an increase of 1ºC in atmospheric temperature). It is sadly known as climate change.There are a great many activities that people carry out that generate this unsustainable environmental pollution: in addition to "classic" energy production, transport, the manufacture of consumer goods, mining, telecommunications, the food industry... and building are also responsible. In fact, it is estimated that in Spain it is responsible for 33% of the annual energy consumption generated (imputed to the energy needed to manufacture precise building materials for the sector and thermal and electrical energy used by households and buildings). And this sector is responsible, with the current national energy mix, for 30% of harmful emissions. As a result, it seems imperative that advanced societies begin a transition to an economic model of growth based on sustainable development, where the two pillars are energy efficiency and renewable energy. In addition, new players are emerging that will change the global energy paradigm in the coming decades: distributed generation, intelligent buildings, near-zero consumption housing and massive data processing. An exciting challenge for the future. Among renewable technologies, solar energy in all its aspects (thermal, photovoltaic and concentration) is one of the best candidates to lead the previous challenge. Fortunately, the first two are already familiar in the building sector. The first one is for DHW production, heating support, swimming pool heating and solar absorption cooling. The second one is either for electricity generation for self-consumption or for injection into the grid. However, the concentration site to date has had a negligible presence in homes and buildings. Thus, even though there is an installed base of 50 solar thermal industrial plants already in operation and high power (totalling 2.3 GW in Spain), there are almost no devices based on concentrated solar energy adapted to the energy needs of new buildings. In addition, the current solar irradiance databases are obtained by means of surface radiometers distributed throughout the country, together with indirect measurements of reflected radiation on the earth's surface, integrated into data interpolation algorithms: although they are valid, there is room for improvement in order to draw up tables of ad hoc values.As with the e...

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Temperature influence on a differential capacitive rain sensor performances

Cited by 4 publications

References 4 publications

Capacitive Sensors

Capacitive Sensors

Total reflection array infrared rain sensor

Desarrollo de un prototipo mecatrónico de seguidor solar parabólico para la edificación

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