G01M 17/00 - Definition 
Definition statement
This subclass covers:
Testing of machine parts, such as: sealing rings, gearings, power-transmitting couplings or clutches, power-transmitting endless, e.g. belts, chains, bearings.
Testing of engines, e.g. by monitoring different engine parameters: pressure, temperature, velocity, vibration, and power, detecting misfire, exhaust gases, combustion flame.
Testing of different parts of vehicles, e.g. wheels, tyres, endless-tracks, suspension, or of damping as a part of wheeled or endless-traced vehicles or suspension, axles, wheels suspension, or of axles as a part of railway vehicles.
Relationship between large subject matter areas
G01L covers instruments which can be used for testing of machine parts (gearing, transmission mechanisms), of steering or rolling behavior of vehicles, e.g. measuring efficiency, steering angles, steering forces, but not specially adapted for this purposes.
Informative references
Attention is drawn to the following places, which may be of interest for search:
Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles | B60C 23/00 |
Monitoring or diagnostic devices for exhaust-gas treatmentapparatus | F01N 11/00 |
Indicating or supervising devices of internal-combustion engines | F02B 77/08 |
Running-in of internal-combustion engines | F02B 79/00 |
Controlling combustion engines | F02D |
Rocket-engine plants characterised by specially adapted arrangements for testing or measuring | F02K 9/96 |
Apparatus for testing, tuning or synchronising carburettors, e.g. carburettor flow stands | F02M 19/01 |
Testing fuel-injection apparatus | F02M 65/00 |
Testing of ignition installations peculiar to internal-combustion engines | F02P 17/00 |
Testing of ignition installations of combustion apparatus | F23Q 23/00 |
Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity | G01L 3/24 |
Measuring wheel side-thrust | G01L 5/20 |
Measuring the force applied to control members, e.g. control members of vehicles, triggers | G01L 5/22 |
Determining the characteristic of torque in relation to revolutions per unit of time | G01L 5/26 |
Testing brakes | G01L 5/28 |
Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies | G01L 17/00 |
Devices for detecting or indicating knocks in internal-combustion engines | G01L 23/22 |
Devices for measuring pressure in inlet or exhaust ducts of internal- combustion engines | G01L 23/24 |
Means for indicating positions of pistons or cranks of internal-combustion engines by measuring pressure | G01L 23/30 |
Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency | G01L 25/00 |
Testing or calibrating of apparatus for measuring fluid pressure | G01L 27/00 |
Pressure-testing | G01N 3/12 |
Investigating machinability by cutting tools; Investigating the cutting ability of tools | G01N 3/58 |