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Photoresistive Transducer Sensitivity Formula:
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Photoresistive transducer sensitivity is the degree to which its resistance changes in response to variations in light intensity. It quantifies how effectively the transducer converts changes in irradiation into changes in electrical resistance.
The calculator uses the sensitivity formula:
Where:
Explanation: The formula calculates the sensitivity by dividing the change in electrical resistance by the corresponding change in irradiation intensity.
Details: Calculating photoresistive transducer sensitivity is crucial for designing light detection systems, calibrating optical sensors, and ensuring accurate measurement of light intensity variations in various applications.
Tips: Enter resistance change in Ohms and irradiation change in W/m². Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is a photoresistive transducer?
A: A photoresistive transducer is a light-sensitive device whose electrical resistance changes when exposed to light, making it useful for light detection and measurement applications.
Q2: What are typical sensitivity values?
A: Sensitivity values vary depending on the specific photoresistive material and construction, but typically range from 0.1 to 10 Ohm/(W/m²) for common photoresistive transducers.
Q3: How does temperature affect sensitivity?
A: Temperature can affect the baseline resistance and sensitivity of photoresistive transducers, so measurements should be taken under controlled temperature conditions for accuracy.
Q4: What applications use photoresistive transducers?
A: These transducers are used in light meters, automatic lighting controls, security systems, photographic equipment, and various industrial light sensing applications.
Q5: How does sensitivity relate to response time?
A: Higher sensitivity transducers may have slower response times due to the material properties and construction. The relationship varies by specific transducer design.