Notch Apparatus is designed for the study of flow measurement in open channels using notches & calibration of notches. Notch Apparatus is commonly known as Discharge over notches apparatus. It consists of a channel having extensive length and width in which water is supplied from the bottom.Notches are plates with sharp edged openings and these notches is fitted at one end of the channel.Notches apparatus are primarily used for flow measurement.
The set up is designed to study the discharge through different notches. It consists of a flow channel section, supply tank, measuring tank and pump for closed loop water circulation. The flow channel is fitted with arrangement for creating jet using different interchangeable notches. It also consists a hook gauge for measuring x-y coordinates of jet and a vernier pointer to measure the height of water in the channel. The Notch apparatus is used to calibrate the following types of notches:-
1. Rectangular Notch
2. Triangular Notch
3. Trapezoidal Notch or Cipolletti Weir
Features of Notch Apparatus:-
1) Designed with accurate channel test section.
2) Easy to operate and maintain.
3) Corrosion resistant notch.
4) Equipped with electronic stop watch.
5) Noiseless & hassle free operations.
6) Precisely designed.
7) Low maintenance.