VHD方式是采用静电电容变化存储、再生信息+电子跟踪轨迹的一种崭新方式。在表面无槽的唱片上,约有500亿个信息小坑,可以存储长达2小时的信息(双面)。表面无槽的唱片与针头头部是平面形的唱针,可大大延长使用寿命。电子跟踪轨迹可以实现各种特殊再生。本文概略地介绍了VHD电视唱片和唱机的原理和特性。 The VHD method is a new way of storing, regenerating information + electronic tracking trajectories using electrostatic capacitance changes. There are about 50 billion pockets of information on a grooveless record that holds up to 2 hours of information (double-sided). Slotless record and needle head is a flat-shaped needle, can greatly extend the service life. Electronic tracking trajectory can achieve a variety of special regeneration. This article gives an overview of the principles and features of VHDs and record players.