Helical scan
![Helical recording method](/Images/godic/202501/17/Helical_tape_drive3104.png")
![The head drum of a Hi-Fi NTSC VHS VCR; three of the six heads face the reader. The helical path of the tape around the drum can clearly be seen.](/Images/godic/202501/17/VHS_head_drum_13104.jpg")
![The same head drum with the rotating portion elevated for clarity](/Images/godic/202501/17/VHS_head_drum_23104.jpg")
![The rotating portion of the head drum showing the rotary transformer and three of the six tape heads used in this particular VCR](/Images/godic/202501/17/Rotary_transformer_23105.jpg")
Helical scan is a method of recording high frequency signals on magnetic tape. It is used in reel-to-reel video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives.
Helical scan
英语百科
| 单词 | Helical scan |
| 释义 |
Helical scan
英语百科
Helical scanHelical scan is a method of recording high frequency signals on magnetic tape. It is used in reel-to-reel video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives. |
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