The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Vertical Scanning

sequential (line by line) discrete scanning of a television image in a vertical direction. A vertical scanning generator with a deflecting system moves the electronic beam from top to bottom linearly over time (direct stroke) on the screen of the kinescope or photosensitive (target) electrode of the pick-up tube and then returns rapidly to the initial position (back stroke). The duration of the back stroke is nearly 8 percent of the scan period. The vertical sweep frequency (frame frequency)is equal to the rated frequency of the commercial mains (50 or60 cycles per sec).

Mentioned in

References in periodicals archive

installation of Furuno WR2100 automated weather radar for monitoring of severe weather events with horizontal 360-degree and vertical scanning from -2 to 182 degrees;

Chairman of the Supreme Assembly of Nakhchivan Autonomous Republic Vasif Talibov and AZAL President Jahangir Asgarov got familiarized with construction of Nakhchivan Airport's second runway

White light vertical scanning interferometers (VSI) measure the surface height of smooth to moderately rough surfaces, providing nanometre vertical resolution, regardless of the numerical aperture, to make use of all available magnifications to profile shape features.

Measure for measure: Keely Portway looks at some of the latest advances in light-based test and measurement techniques

One of the reasons why their system uses fewer lasers per unit--it could be one, it could be four--is because the laser is directed in a raster pattern so that there is horizontal and vertical scanning. (The InnovizOne has a field of view of 125 x 25 degrees.)

Innoviz, ADAS & LiDAR: Technology that will help drive us toward Level 5 driving

According to Panasonic, existing LiDAR products used in advanced driver assist systems (ADAS) or autonomous vehicles suffer from the problem of having a vertical scanning angle that is fixed and too narrow.

3D LiDAR gives robots a sense of space: The development of 3D LiDAR sensors with wide scanning angles provides autonomous guided vehicles with improved object detection

First, the focused laser beam scans the target structure vertically upward and the laser beam steps horizontally leftward after vertical scanning. Then the laser beam scans vertically downward as shown in Figure 1.

Flaw imaging technique for plate-like structures using scanning laser source actuation

Vertical scanning looks up and helps to analyze storm tops, gradients and cell buildup activity at higher altitudes.

Ship's radar upgrades: Garmin leads the way: Garmin already revived a stagnant radar market with the powerhouse GWX68. Now it aims high with a new turbulence-sniffing Doppler system

Humminbird also offers a vertical scanning system called Down Imaging.

Wickedly vivid walleyes: down scanning joins side scanning technology

Using a new focus-variation vertical scanning microscope, the researchers could see extensive surface detail like never before.

Orange Juice more harmful for teeth than whitening

This result is in agreement with the prediction from the optical geometry and thus supports the possibility of a phototaxis mechanism based on a simultaneous comparison of two receptor signals during sideways scanning but not vertical scanning. However, the optical geometry and behavior also agree with a mechanism involving a pooled-receptor signal during both sideways and vertical scanning.

Unique two-photoreceptor scanning eye of the nematode Mermis nigrescens

To maximise the efficiency of the scan and reduce the optical pathway, OBM is using a complex optical system combining a Bravais lens system (US Patent 5966252, 1999) which has a negative power, two holographic optical elements, a telephoto Fourier transform, a demagnifying transform lens and a vertical scanning subsystem.

MIT progress towards domestic HoloVideo