US 11,656,222 B2
Sensor using ultrasound to detect target substance and detecting device using same
Hsin-Hua Lin, New Taipei (TW); Wei-Chih Chang, New Taipei (TW); Po-Li Shih, New Taipei (TW); Chao-Chun Yang, New Taipei (TW); and I-Min Lu, New Taipei (TW)
Assigned to HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed by HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed on Mar. 30, 2020, as Appl. No. 16/833,904.
Claims priority of application No. 201910957992.X (CN), filed on Oct. 10, 2019.
Prior Publication US 2021/0109092 A1, Apr. 15, 2021
Int. Cl. G01N 33/53 (2006.01); G01N 29/22 (2006.01); G01N 29/036 (2006.01)
CPC G01N 33/5308 (2013.01) [G01N 29/036 (2013.01); G01N 29/22 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A detection device, comprising:
a hollow pipe defining two openings; and
at least one sensor in the hollow pipe, each of the at least one sensor comprising:
an ultrasonic element, the ultrasonic element comprising:
a first electrode;
a second electrode facing and spaced apart from the first electrode;
an insulating layer on a side of the second electrode adjacent to the first electrode;
a vibrating film between the insulating layer and the first electrode, the vibrating film carrying the first electrode, wherein a cavity is formed between the vibrating film and the insulating layer; and
a receptor on a side of the first electrode away from the second electrode, wherein the receptor is configured to be combined with a target substance in a test analyte;
wherein the vibrating film is configured to vibrate to produce ultrasonic waves when the first electrode and the second electrode are applied with different voltages, the detection device further comprises a suction ball coupled to the hollow pipe, wherein the suction ball seals one of the two openings.