Abstract: The invention relates to a device for measuring and detecting brake dust particles that have been removed from the brake (3). Said device can comprise a particle measuring device (8) for measuring the number of brake dust particles. The particle measuring device (8) can measure the size of the brake dust particles. A removal device (6) for removing or receiving brake dust particles is mounted in an exhaust air duct (10) which conducts an air stream away from a housing (11) surrounding the brake (3). A device (7) is used to guide the brake dust particles from the removal device to the particle measuring device (8). A fan system with a fresh air channel (9) and the exhaust air channel (10) is used to guide an air stream over the brake (3). The device can be an integral component of a brake test level.

Abstract: The invention relates to a test bench (10) for testing a test specimen (14), comprising a load device for generating a load for the test specimen, a test specimen holder (16) for holding the test specimen and for introducing the load onto the test specimen, and a cooling gas inflow device (32) for cooling the test specimen by means of a cooling gas stream exiting an outlet opening (48) of the cooling gas inflow device. In this case, the cooling gas inflow device is designed such that the cooling gas flow inside the cooling gas inflow device is divided into at least two part cooling gas streams in at least one section of the cooling gas inflow device.

Abstract: The invention relates to a test bench (10) for testing a test specimen (14), comprising a load device for generating a load for the test specimen, a test specimen holder (16) for holding the test specimen and for introducing the load onto the test specimen, and a cooling gas inflow device (32) for cooling the test specimen by means of a cooling gas stream exiting an outlet opening (48) of the cooling gas inflow device. In this case, the cooling gas inflow device is designed such that the cooling gas flow inside the cooling gas inflow device is divided into at least two part cooling gas streams in at least one section of the cooling gas inflow device.