Multi-Purpose Digital Laser Sensor
#laser
#digital
#sensor
#measurement
#detection
#precision
#optical
#distance measurement
#industrial
#automation
No description available.
Speed of Light with Nanosecond Pulsed 650 nm Diode Laser
The speed of light has been measured using various ingenious methods. This note describes a conceptually simple and relatively easy-to-implement technique known as the time-of-flight optical pulse delay method. It utilizes a short (nanosecond) optical pulse and an oscilloscope with...
Digital Step-Km Counter
This circuit measures the distance covered during a walk. The hardware is housed in a small box that can be slipped into a pants pocket, with the display designed as follows: the leftmost display D2 (the most significant digit) shows...
Home-Built Pulsed Multiple Gas (PMG) Laser
The Pulsed Multiple Gas (PMG) laser discussed in this chapter closely resembles the Home-Built Pulsed Argon and/or Krypton (Ar/Kr) Ion Laser from Scientific American. However, the PMG laser's developers have also utilized xenon (Xe) and oxygen (O2) and even propose...
Visible-red-continuous-laser-gun
Q1 and Q2 control the primary windings of transformer T1 using a square wave at a frequency determined by the transformer's magnetic properties. Diodes D1 and D2 provide return paths for the feedback current of Q1 and Q2. The output...
Home-Built Dye Laser
Dye lasers are a distinct category of lasers that utilize a liquid as their lasing medium. Depending on the specific dye employed, these lasers can produce output across a wide range of wavelengths, including the visible spectrum and beyond. Typically,...
Home-Built Nitrogen (N2) Laser
The nitrogen (N2) laser generates extremely short and intense pulses of light in the near ultraviolet (UV) spectrum, with a dominant wavelength of 337.1 nm. This laser is relatively easy to construct because it does not require mirrors; the gain...
Laser light detector
The laser light detector employs a sensitive phototransistor (Q5) positioned at the focal point of a lens (LE2). The output from Q5 is directed to a sensitive amplifier composed of an array (A1), which is biased through a voltage divider...
Home-Built Copper Chloride (CuCl) and Copper Bromide (CuBr) Laser
The copper chloride (CuCl) and copper bromide (CuBr) lasers are variations of the copper vapor laser. The copper vapor laser operates at a high temperature of approximately 1,100 °C and is driven by a high voltage pulse, typically at a...
The alarm circuit diagram for safety box and other metal objects
When an individual touches the safety box or other protected metal objects, the sensor circuit generates a pulse to the alarm circuit. The positive edge of this pulse activates the semiconductor and thyristor flash GE, subsequently triggering the camera to...