• Thumbnail for Lock-in amplifier
    A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the dynamic...
    17 KB (2,253 words) - 07:36, 22 December 2024
  • Lock In, a 2014 novel by John Scalzi Flow (psychology), an emotional state Vendor lock-in, in economics Lock-in amplifier, a type of amplifier Locked-in...
    1 KB (181 words) - 20:26, 1 April 2025
  • Thumbnail for Robert H. Dicke
    lock-in amplifier, which is an indispensable tool in the area of applied science and engineering. Many of Dicke's experiments capitalize on lock-in in...
    22 KB (2,384 words) - 16:38, 8 January 2025
  • Thumbnail for Amplifier
    power amplifier Lock-in amplifier Low-noise amplifier Negative feedback amplifier Optical amplifier Programmable-gain amplifier Tuned amplifier Valve...
    58 KB (7,150 words) - 08:43, 11 May 2025
  • frequencies. Recovery of small signals that otherwise would be lost in noise (lock-in amplifier to track the reference frequency) Recovery of clock timing information...
    52 KB (7,681 words) - 19:39, 25 February 2025
  • Thumbnail for Optical chopper
    used in science labs in combination with lock-in amplifiers. The chopper is used to modulate the intensity of a light beam, and a lock-in amplifier is used...
    5 KB (673 words) - 13:21, 16 February 2024
  • Thumbnail for Kelvin probe force microscope
    Kelvin probe force microscope (category Electric and magnetic fields in matter)
    the use of a lock-in amplifier. Typically the user must select the correct reference phase value used by the lock-in amplifier. Once the dc potential...
    34 KB (4,279 words) - 14:55, 11 May 2025
  • Thumbnail for Piezoresponse force microscopy
    photodiode detector methods and then demodulated by use of a lock-in amplifier (LiA). In this way topography and ferroelectric domains can be imaged simultaneously...
    26 KB (3,243 words) - 02:37, 3 May 2025
  • centuries Lock-in amplifier, a type of amplifier Lia, a feminine given name (including a list of people with the name) Lia (food), a rice-based dish in Orissa...
    1 KB (197 words) - 08:41, 3 July 2024
  • in amplitude, and the signal is detected on the other beam via a lock-in amplifier. Employing a pump laser beam of a constant frequency and a Stokes laser...
    15 KB (2,272 words) - 14:18, 9 May 2024
  • Thumbnail for Optical amplifier
    amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may...
    39 KB (5,210 words) - 22:00, 2 March 2025
  • message. This operation is similar to that performed by a dual-phase lock-in amplifier. Example: I-Q Demodulator The product demodulator has some advantages...
    5 KB (847 words) - 14:26, 9 November 2022
  • lock-in amplifier), excluding many sources of noise not at the PEM operating frequency and attenuating the white noise by the bandwidth of the lock-in...
    5 KB (711 words) - 16:27, 15 December 2024
  • Thumbnail for Operational amplifier
    An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output...
    77 KB (10,087 words) - 19:15, 29 April 2025
  •  (in support of MIL-STD-188). A DSBSC generation and demodulation instrument is described as side application of a commercial lock-in amplifier in Double-sideband...
    7 KB (1,256 words) - 04:09, 16 April 2025
  • Thumbnail for Synchronous detector
    better performance on signals that may be affected by fading. Lock-in amplifier Donald G. Fink (ed.)., Electronics Engineers' Handbook, McGraw Hill, 1975...
    1 KB (134 words) - 13:18, 17 July 2023
  • Scanning voltage microscopy (category Wikipedia articles in need of updating from April 2021)
    interpreted as a map of the sample's sensitivity to gate voltage. A lock-in amplifier aids noise reduction by filtering through only the amplitude oscillations...
    4 KB (456 words) - 03:28, 11 September 2024
  • Beatrice M. Tinsley Prize (category Awards established in 1986)
    Antoine Labeyrie — speckle interferometry 1992 Robert H. Dicke — lock-in amplifier 1994 Raymond Davis, Jr. — neutrino detectors; first measurement of...
    4 KB (356 words) - 09:17, 7 October 2024
  • Thumbnail for Analytical chemistry
    the signal at a higher frequency, for example, through the use of a lock-in amplifier. Environmental noise arises from the surroundings of the analytical...
    35 KB (4,066 words) - 14:30, 1 February 2025
  • Thumbnail for Charge modulation spectroscopy
    ratio is very low, the signal can be modulated and recovered with a Lock-in amplifier. In the experiment, a direct current plus an alternating current bias...
    12 KB (1,423 words) - 19:55, 14 August 2024
  • source signal component from the detected stray component with a lock in amplifier synchronized to the chopper frequency. However, this approach is still...
    6 KB (731 words) - 06:58, 9 February 2024
  • Zurich Instruments (category Companies based in Zurich)
    first product, the HF2LI, a 50 MHz lock-in amplifier, was introduced in 2009. By 2015 two further lock-in amplifiers, the UHFLI and MFLI, had been introduced...
    5 KB (453 words) - 11:34, 24 October 2024
  • modulated at a known frequency so that a lock-in amplifier may be used to suppress unwanted noise, resulting in the ability to detect reflectance changes...
    27 KB (3,419 words) - 16:30, 29 March 2025
  • Thumbnail for Atomic clock
    S.; Parikh, K. S.; Bandi, Thejesh N. (1 December 2021). "Digital lock-in amplifier for space rubidium atomic clock". Review of Scientific Instruments...
    113 KB (12,188 words) - 20:51, 8 May 2025
  • by a monochromator. The circuit and optics are coupled by use of a lock-in amplifier. The measurements give information related to the band gap of the...
    5 KB (593 words) - 08:03, 6 June 2024
  • Thumbnail for Homodyne detection
    frequency-shifted, while in homodyne detection it has the same frequency as the radiation to be detected. See direct conversion receiver. Lock-in amplifiers are homodyne...
    7 KB (797 words) - 03:41, 4 January 2025
  • heater across a range of frequencies (generally accomplished using a lock-in-amplifier). Note, the phase delay of the signal is the lag between the heating...
    3 KB (528 words) - 09:11, 28 April 2025
  • Thumbnail for Vibrating-sample magnetometer
    system Calibrate the system Optimize the system for M Calibrate the Lock-In Amplifier Take measurements and record data Magnetic field must be strong enough...
    7 KB (846 words) - 18:48, 22 April 2025
  • Thumbnail for Signal-to-noise ratio
    Signal-to-noise ratio (category Audio amplifier specifications)
    it is possible to use a filter to reduce the noise. For example, a lock-in amplifier can extract a narrow bandwidth signal from broadband noise a million...
    25 KB (3,695 words) - 15:34, 24 December 2024
  • fed into a lock-in amplifier whose reference signal has the same frequency used to modulate the pump. The voltage output from the lock-in will be proportional...
    12 KB (2,189 words) - 22:30, 5 December 2024