Positioning device for sound level meter

Abstract

The invention discloses a positioning device for a sound level meter, which comprises a cantilever (1), a telescopic rod (2) and a clamping head (3), wherein a body of the cantilever (1) is a hollow straight pipe, a hold hoop (4) is fixedly arranged at the back end of the body, the telescopic rod (2) is arranged in a pipe of the cantilever (1), and the telescopic rod (2) is fixed by an arresting device on the cantilever (1); and the front end of the telescopic rod (2) extends out of the cantilever (1), the clamping head (3) is mounted through a front end hole of the telescopic rod (2), the clamping head (3) can rotate around an axis line of the hole, and a supporting frame (31) containing the sound level meter (7) is arranged on the clamping head (3). The positioning device can be fixed on a headlight detector and other devices, thereby meeting the requirements on the placement position of the sound level meter in noise detection, conveniently adjusting the position of the sound level meter and further completing a plurality of detection items like noise detection and the like in a same detection place.

Description

technical field [0001] The invention relates to an instrument positioning device, in particular to a sound level meter positioning device. Background technique [0002] According to the relevant regulations of the country, motor vehicles must be tested for noise, and the measurement methods and instruments used are stipulated. Automobile manufacturers should measure the noise of new cars in accordance with the relevant regulations. The sound level meter should be used to measure the noise at a position 2 meters in front of the car and 1 meter above the ground. For this reason, the sound level meter should be supported and fixed here for verification Location. Since the car has many online testing items before leaving the factory, it would be a waste of production space if a separate testing station is set up for noise testing. For this reason, noise testing can be combined with other testing items, as long as the sound level meter can be supported and fixed at a specified p...

AI Technical Summary

Problems solved by technology

However, in order to complete the two detection items at one station, if the sound level meter is placed on the top of the detection box of the headlight detector, the relevant requirements for noise detection cannot be met, because the detection box is directly opposite to the headlight. The height from the ground is not enough, nor is it directly in front of the front of the car

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