• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Inlet Air Temperature (IAT) Sensors
Inlet Air Temperature (IAT) Sensors

... the voltage of the sensor. The ECU assesses the voltage value because it is in direct relation to the inlet air temperature. That means low temperature high voltage, high temperature low voltage. ...
Electronics II. 3. measurement : Tuned circuits
Electronics II. 3. measurement : Tuned circuits

... b) Use the function generator to provide a 10 Vpp sinewave to the input of the double T. Measure the transfer function (Vout vs frequency) between 20Hz and 20kHz. Use more detailed sampling in places where the function changes rapidly. Find values of f0, f1 and f2 (as in figure 2). Use an oscillosco ...
Series Circuits
Series Circuits

... From our Breadboarding Experiment, we found that the total resistance of this circuit is 11.3 kΩ, which happens to be equal to the sum of all of the resistances in the series loop. ...
Photoelectric Effect – Modern Physics Laboratory
Photoelectric Effect – Modern Physics Laboratory

... that range, adjust the power supply voltage to bring the reading into that range. 4. Align the tube with the light from the mercury source. The system should be ready to record data. 5. Insert the 435.8µm (i.e. 435.8 nm) filter in the apparatus. This selects the mercury emission spectral line of tha ...
Automatic Power Factor Correction Equipment PFL/R 375
Automatic Power Factor Correction Equipment PFL/R 375

... Not affected by micro breackdown lasting less than 30 ms Adjustable switching of the banks between 5÷240 seconds True RMS measurement of Voltage and Current Alarm contact, voltage free Allarm for max harmonic overload 50% ...
34-1
34-1

HF Wideband Active Circulator
HF Wideband Active Circulator

Schmitt trigger
Schmitt trigger

File
File

... I1 = amount of current flowing through bulb #1 I2 = amount of current flowing through bulb #2 I3 = amount of current flowing through bulb #3 Vt =potential difference across the source V1 =potential difference across bulb #1 V2 = potential difference across bulb #2 V3 = potential difference across bu ...
DC power monitor - Texas State University
DC power monitor - Texas State University

Phys 100 L22-Zhou, Nov 19, 2007
Phys 100 L22-Zhou, Nov 19, 2007

... Electricity --- Current and voltage ...
Automatic Power Factor Correction Equipment PFM/R 180 kVAr
Automatic Power Factor Correction Equipment PFM/R 180 kVAr

... Not affected by micro breackdown lasting less than 30 ms Adjustable switching of the banks between 5÷240 seconds True RMS measurement of Voltage and Current Alarm contact, voltage free Allarm for max harmonic overload 50% ...
TDA2050.pdf
TDA2050.pdf

Chapter 7
Chapter 7

... A series-parallel circuit is a combination of both series paths and parallel paths. To determine total resistance in a series-parallel circuit, identify the series and parallel relationships, and then apply the formulas for series resistance and parallel resistance. To find the total current, apply ...
ECE 3235 Electronics II
ECE 3235 Electronics II

CCNA 1 v3.0
CCNA 1 v3.0

Circuit Diagrams Chart Answer Key
Circuit Diagrams Chart Answer Key

... Converts electrical energy into motion. ...
Electronics Manual
Electronics Manual

... Part 2: To measure the amplitude and frequency of an AC signal The signal to be investigated is that produced by the variable frequency signal generator. Output sockets, one of which is earthed, are at the lower right of the panel. The knob below the dial knob is the frequency range selector switch ...
Automatic Power Factor Correction Equipment PFM/R 150 kVAr
Automatic Power Factor Correction Equipment PFM/R 150 kVAr

Electricity Notes, Part I
Electricity Notes, Part I

The HV 2/4 high-voltage power supply module
The HV 2/4 high-voltage power supply module

... The HV 2/4 high-voltage power supply module The RoentDek 24kV Power Supply is especially designed for the use of biasing multi-channel-plate detectors or similar SEM devices, featuring low-ripple and regulated current limitation and protection. It is to be powered by a NIM crate or the RoentDek SPS ...
Oscilloscope 3 (vertical deflection)
Oscilloscope 3 (vertical deflection)

... general 1M ohm shunted with(10PF to 30PF) ...
RB721Q-40 - Digi-Key
RB721Q-40 - Digi-Key

Ohm`s Law / Watt`s Law Description and practical example: Real
Ohm`s Law / Watt`s Law Description and practical example: Real

... First, you would need to know how much current can be drawn through the circuit. Most homes have 15 amp circuits installed. At MassArt, most of the circuits are on 20 amp circuit breakers. So the total power available would be: ...
GSM160B series
GSM160B series

< 1 ... 2028 2029 2030 2031 2032 2033 2034 2035 2036 ... 2207 >

Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report