Table 2 Measured parameters and measurements instrument of the test stand (Fig. 28).

From: Theoretical background of the operating parameters of the satellite working mechanism of the hydraulic positive displacement machine

 

Denotatin

Measuring instrument

Range

Class

Pressure

p1

strain gauge transducer

0 ÷ 25 MPa

0.3

p2

0 ÷ 2.5 MPa

0.3

Flow rate

Q

mass flowmeter

0 ÷ 6 l/min

0.1

Torque

FT

strain gauge force transducer

0 ÷ 100 N

0.02

A

arm fixed to the tested machine body

0.5 m

±0.1 mm

Rotational speed

n

inductive sensor

60.000 rpm

acc. of meas. ±0.01 rpm

Temperature

t1 and t2

RTD temperature sensor

180 °C

A