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LDR is a light-dependent resistor. It is also called Light controlled variable resistor, photoresistor, and photo-conducting cell. As the name suggests, its resistance changes when the light falls on it. So, it is an electronic component, that is sensitive to light. It is made of semiconductor material, and its resistance decreases when the ...
Photoresistor. A photoresistor (also known as a photocell, or light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing luminosity (light) on its sensitive surface, in other words, it exhibits photoconductivity. A photoresistor can be used in light-sensitive detector ...
LDR Summary. LDRs are light dependent resistors. Resistance decreases with increasing light levels. Typically > 1 MΩ when dark and < 1 kΩ in high light levels. Response time of 2 – 50 ms. (Much slower than photo-transistors.) They have a “light history”. Characteristics change a little as they acclimatise after long periods in darkness.
Los fotoresistores LDR son dispositivos dependientes de la luz cuya resistencia disminuye cuando la luz cae sobre ellos y aumenta en la oscuridad.Cuando una resistencia dependiente de la luz se mantiene en la oscuridad, su resistencia es muy alta. Esta resistencia se denomina resistencia en la oscuridad. Puede llegar a ser tan alta como 1012 Ω y si se permite al dispositivo absorber la luz su ...
4 de ago. de 2017 · LDR é a abreviatura de LIght Dependent Resistor (Resistor Dependente de Luz), nada mais é que um resistor que varia sua resistência com a variação da intensidade de luz que recebe. Quanto mais luz recebe, menor a resistência e vice-versa. A curva característica do LDR é uma exponencial negativa. A equação da curva característica do LDR.
A light-dependent resistor (LDR) is a non-ohmic conductor and sensory resistor. Its resistance automatically changes depending on the light energy falling onto it (illumination) As the light intensity increases, the resistance of an LDR decreases. Resistance of an LDR depends on the light intensity falling on it.
1 de mar. de 2011 · 2. Can someone tell me (or link me) the response curve of an LDR. I don't mean the frequency response, just the intensity response; is it linear, or logarithmic? LDR == Light dependent resistor?
