| 摘要 |
A transmittance detection device comprises a frame support rod (1) used for providing support, and a light-emitting element support frame (4), a to-be-measured element support frame (3) and a light-receiving element support frame (2) supported by the frame support rod (1) from low to high. The light-emitting element support frame (4) is used for placing a light-emitting element (13) that can emit light; the to-be-measured element support frame (3) is used for fixing a touch sensor (24); and the light-receiving element support frame (2) is arranged with a light-receiving element (7) that faces the to-be-measured element support frame (3). The device can make positions of the light-emitting element (13), the touch sensor (24) and the light-receiving element (7) be relatively fixed, and can obtain a stable and accurate measurement value. |
