• 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
141 EBI100C Electrical Bio-Impedance Amplifier The EBI100C
141 EBI100C Electrical Bio-Impedance Amplifier The EBI100C

... impedance magnitude and phase simultaneously. Impedance can be recorded at four different measurement frequencies, from 12.5kHz to 100kHz. For operation, the EBI100C connects to four unshielded electrode leads terminating in Touchproof sockets. The EBI100C is typically used with EL500 paired disposa ...
Ohm`s Law I
Ohm`s Law I

... To study Ohm's law as applied to a "linear" DC circuit. ...
blue print - iii xii - physics
blue print - iii xii - physics

... What is a wavefront? Distinguish between a plane wavefront and a spherical wavefront. Explain with the help of a diagram, the refraction of a plane wavefront at a plane surface using Huygen’s construction. ...
UMZ-268-D16-G
UMZ-268-D16-G

... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
Ohm`s Law Lab
Ohm`s Law Lab

A Simple Pressure Sensor Signal Conditioning Circuit
A Simple Pressure Sensor Signal Conditioning Circuit

6n1p, 6n1pvi, 6n1pev datasheet - Electron-PV
6n1p, 6n1pvi, 6n1pev datasheet - Electron-PV

... distortion, such as required for oscilloscopes. Today, ECC88 is very popular as an audio tube, since output impedance is relatively low and gain is relatively high. However there is a trend to use ECC88 at highest possible voltage, and highest possible filament-to-cathode voltage, and highest possib ...
Transformer Equivalent Circuit -- Lab Review Sheet
Transformer Equivalent Circuit -- Lab Review Sheet

生醫電子電路設計 姓名:蔡聖瑋 老師:梁治國
生醫電子電路設計 姓名:蔡聖瑋 老師:梁治國

Problem Set
Problem Set

... component in which you are interested. 1. Sketch a circuit that would allow you to get the desired voltage. Use standard conventions for illustrating the voltage source and resistor(s). Label the value of the voltage source and any resistors in your circuit. ...
Electric Circuits
Electric Circuits

... Note that we talk about the rate of water flowing, not the speed that the individual water molecules are moving. The same is true for electric circuits, where the current represents how many electrons pass a certain point in a certain amount of time. ...
Circuit with partlist and explanation of how it works
Circuit with partlist and explanation of how it works

... plugged in at 230V, this means UC1 will be zero Volts, so the batteries will provide power. U2 then uses this power to regulate 5V between Gnd and Out. For information on this part of the circuit, read [2]. C2 is placed to smoothen out any voltage changes that may occur when the power source is chan ...
Control Console - Valiant Technology
Control Console - Valiant Technology

...  The Console will make a noise when it is turned on.(Do not turn it on until you have connected your outputs.) When you have finished do not take the lead from the console just turn off the wall socket. ...
Orange Coast College
Orange Coast College

... This section of the laboratory exercise will help you get familiarized with electrical resistors connected in series and in parallel, as well as with Ohm’s Law. Part I Resistors connected in Series Procedure: (a) Consider the electric circuit shown in figure (1) below. Set the resistor box at 400 Oh ...
document
document

Current
Current

... by definition, the staircases are in series. With each flight people lose some of the potential energy given to them by the elevator, expending all of it by the time they reach the ground floor. So the sum of the V drops across the resistors the voltage of the battery. People lose more potential ene ...
QST5
QST5

... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
The Photoelectric Effect
The Photoelectric Effect

...  High humidity causes condensation on the surface of the apparatus which conduct electrons. Since these currents are unpredictable and comparable to the photon induced current, you shouldn’t try to do the experiment when it is raining or extremely humid. The manufacturer says that less than 70% hum ...
Phys 345 Electronics for Scientists
Phys 345 Electronics for Scientists

... 4. Keep burning as brightly as it did before the switch was opened 5. Flare up brightly, then dim and go out ...
Final Presentation - ECE Senior Design
Final Presentation - ECE Senior Design

The electric current
The electric current

... – However, Edison refused to sell them any light bulbs so they had to create their own ...
US6T5
US6T5

... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
EDIBON
EDIBON

120V 12V LAMP DIMMING
120V 12V LAMP DIMMING

... better! Incorporates a low-end trim adjustment - available from many control mfgs. ...
electricity - chapter 1 quiz
electricity - chapter 1 quiz

... 12. A thermocouple produces electrical energy from heat energy. 13. A photocell produces electrical energy from light energy. 14. In an electrochemical cell, the difference in charges between the positive and negative terminals is called the potential – difference. 15. A circuit is a complete path f ...
< 1 ... 2122 2123 2124 2125 2126 2127 2128 2129 2130 ... 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