JD22 Type Digital Vertical Length Measuring InstrumentDetailed product description：

1、 Characteristics:
1. Adopting advanced amplitude grating sensor digital measurement system.
2. The movement of the measuring axis is guided by six C-class bearings and two super C-class bearings, and its running linearity is very high.
3. Using light-emitting diodes as light sources and phototransistors as receiving elements.
4. The instrument design conforms to the Abbe principle and has high measurement accuracy.

2、 Purpose:
JD22 digital vertical length measuring instrument is a precision length measuring instrument that combines light, machine, and electricity. The advanced amplitude grating sensor digital measurement system is adopted, which can accurately measure the external dimensions of workpieces of different shapes. Typical measurement objects include: two parallel planes (such as measuring blocks), cylindrical surfaces, cylindrical surfaces (such as cylinder diameter), spherical surfaces (such as steel balls), and three needle method for measuring the pitch diameter of external threads.

3、 Specification parameters:
1. Measurement range (mm) Direct measurement: 0-100 Comparative measurement: 0-200
2. Display equivalent: 0.0002mm
3. Direct measurement accuracy: (1+L/100) μ m, where L is the measurement value, unit: mm
4. Indication variation value: 2 σ ≤ 0.3 μ m
5. Measurement force (N): 2.5
6. Workbench weight: 10Kg
7. Dimensions (length x width x height) (mm): 370 x 170 x 710

4、 Main attachments:
Reinforced worktable, three reinforced worktable, small flat worktable, small spherical worktable, diameter 2, small flat measuring cap, diameter 8, medium flat measuring cap, diameter 14, large flat measuring cap, medium and small blade shaped measuring cap, diameter 20, spherical measuring cap, diameter 100, fine fraction display box