Abstract: An optical body height measurement instrument is provided comprising: a lens configured to be movable along a direction parallel to the height of an object to be measured and form an image of the object; a photosensitive sensor arranged at an image side of the lens to sense the image; and a driving device configured to drive the lens along a direction parallel to the height of the object, wherein when the lens is moved across the height at which the head of the object is located, a hop occurs to an output of the photosensitive sensor; and wherein the height of the object is determined based on the height of the lens measured at the time of the occurrence of the hop. The optical body height measurement instrument can rapidly, conveniently and accurately measure the height based on the infrared rays emitted from the measured object or the light with a predetermined wavelength emitted from an auxiliary light source so long as the person to be measured stands within a certain region.

Abstract: The invention discloses a weighing sensor and an electronic scale provided with the same. The weighing sensor comprises a flat plate formed into helical shape, including successively a load-supporting portion, a strain portion and a bearing portion from the center to the outer of this plate, with the load-supporting portion situated between and surrounded by the bearing portion and the strain portion; wherein the load-supporting portion and the bearing portion are respectively used to bear the acting force and the reaction force in opposite directions, and a strain gauge is mounted on the strain portion. The electronic scale comprises at least three weighing sensors, wherein the bearing portion of the sensor is mounted on the scale body, the load-supporting portion directly contacts the supporting leg of the scale, which contacts the plane on which the scale is positioned. The present invention has small thickness, simple structure and low manufacturing cost.

Abstract: An optical body height measurement instrument is provided comprising: a lens configured to be movable along a direction parallel to the height of an object to be measured and form an image of the object; a photosensitive sensor arranged at an image side of the lens to sense the image; and a driving device configured to drive the lens along a direction parallel to the height of the object, wherein when the lens is moved across the height at which the head of the object is located, a hop occurs to an output of the photosensitive sensor; and wherein the height of the object is determined based on the height of the lens measured at the time of the occurrence of the hop. The optical body height measurement instrument can rapidly, conveniently and accurately measure the height based on the infrared rays emitted from the measured object or the light with a predetermined wavelength emitted from an auxiliary light source so long as the person to be measured stands within a certain region.

Abstract: The invention discloses a weighing sensor and an electronic scale provided with the same. The weighing sensor comprises a flat plate formed into helical shape, including successively a load-supporting portion, a strain portion and a bearing portion from the center to the outer of this plate, with the load-supporting portion situated between and surrounded by the bearing portion and the strain portion; wherein the load-supporting portion and the bearing portion are respectively used to bear the acting force and the reaction force in opposite directions, and a strain gauge is mounted on the strain portion. The electronic scale comprises at least three weighing sensors, wherein the bearing portion of the sensor is mounted on the scale body, the load-supporting portion directly contacts the supporting leg of the scale, which contacts the plane on which the scale is positioned. The present invention has small thickness, simple structure and low manufacturing cost.

Abstract: The invention discloses a weighing sensor and an electronic scale provided with the same. The weighing sensor comprises a flat plate formed into helical shape, including successively a load-supporting portion, a strain portion and a bearing portion from the center to the outer of this plate, with the load-supporting portion situated between and surrounded by the bearing portion and the strain portion; wherein the load-supporting portion and the bearing portion are respectively used to bear the acting force and the reaction force in opposite directions, and a strain gauge is mounted on the strain portion. The electronic scale comprises at least three weighing sensors, wherein the bearing portion of the sensor is mounted on the scale body, the load-supporting portion directly contacts the supporting leg of the scale, which contacts the plane on which the scale is positioned. The present invention has small thickness, simple structure and low manufacturing cost.