Programmable oscillator

The invention relates to a programmable oscillator, and belongs to the technical field of oscillators. An oscillation chamber is formed in the machine body, and an upper-layer oscillation plate and a lower-layer oscillation plate are arranged in the oscillation chamber; the upper-layer oscillation plate is fixed in the oscillation chamber, and the lower-layer oscillation plate is slidably arranged below the upper-layer oscillation plate along the length direction of the upper-layer oscillation plate; a plurality of mounting grooves for placing test tubes are formed in the top surface of the lower oscillating plate; a plurality of sliding holes for placing test tubes are formed in the top surface of the upper oscillating plate; the inner wall of the sliding hole is slidably connected with a sliding plate in the vertical direction. A laser transmitter is vertically embedded in the bottom wall of the mounting groove; the top of the test tube is covered with a laser receiver, and the laser receiver is a photoresi