Vernier Hook & Point Gauges
20 เมษายน 2566
ผู้ชม 120 ผู้ชม
DESCRIPTION
The measurement of steady state water surface position is frequently needed during hydraulic investigations.
This is done by using a small point or hook manually adjusted to touch the water surface, and a reading is taken of the vertical movement using a scale or vernier.
A mounting frame is clamped to a suitable support structure and a gauging rod is free to slide up and down over the water surface. A stainless steel hook or point is attached to the bottom end of the rod and is used to locate the water surface.
Gauging is carried out by means of a primary scale attached to the mounting frame and a vernier scale attached to the rod. The scales are in edge contact.
The rod is held in a screwed collar for fine adjustment and can be released for large, rapid changes of position. Zero can be reset by a locking screw positioned on the vernier scale.
DEMONSTATION CAPABILITIES
- Location of air-water surface boundaries with high resolution
- Measurement of slowly changing water levels in flumes and hydraulic models
- Measurement of mechanical deformation
TECHNICAL SPECIFICATIONS
Ranges:
- H1-1: 150mm
- H1-2: 300mm
- H1-3: 450mm
Resolution: ±0.10mm
Typical accuracy: ±0.20mm
Repeatability: ±0.10mm
