This kymograph is designed for recording mechanical activities of animal tissues in the physiological, pharmacological and biological experiments conducted by medical and pharmaceutical colleges or research institutes. It is with those characteristics: portable, solid, durable, runs noiselessly, steadily, reliably and reassuring. It can also shift rotational speed in a large range. The instrument is simply assembled and convenient to servicing. It can be assembled with a passive drum for being used as a two –drum kymograph.
The kymograph includes two models,SMD-1A with timer and SMD-2A without timer.
- Structures and Functions
The drum is made of aluminum alloy. The outside diameter is 170 mm and the height is 200mm. The record paper with a dimension of 534×200mm2 width, can be fixed at any height of the vertical shaft, which is 433 mm long and can be reeled off the worm wheel . The vertical shaft is connected with the worm wheel by taper joint, keeping the drum rotating smoothly and reliably. The radial saltation movement of drum is not beyond 0.5 mm.
The Transmission mechanism consists of a low-speed synchronous motor, a speed gear train and a gear worm cluster. The gearshift is combined by racks and gears, which can be manipulated with a control knob for to obtain different rotational speed at 9 steps . The rotational speed and the chart speed of every step are as follows:
|Chart speed (cm/min)||86.46||43.23||21.615||10.808||5.404||2.702||1.351||0.676||0.338|