Chemical sensor

Abstract

A chemical sensor disclosed by the present invention comprises a shell main body, adjusting mechanisms are movably connected to the centers of the front and rear ends of the inner surface of the shell main body, each adjusting mechanism comprises a movable block, a plurality of sensor main bodies, a detection probe, a first gear, a second gear and a rotating rod, and the plurality of sensor main bodies are embedded and connected into the movable block. The ends, away from the movable block, of the sensor bodies are fixedly connected with detection probes. According to the invention, the adjusting mechanism is arranged, a plurality of groups of sensor main bodies and detection probes are arranged, and the positions of the sensor main bodies and the detection probes are adjusted by rotating a rotating rod, so that the purpose that the device can detect different liquids is achieved, and the versatility of the device is improved; and in addition, by setting a clamp mechanism, a detachable shell can be conveniently separated from a water drawing tank, so that the detection probes can be conveniently cleaned after the detection probes complete detection, and the service life of the detection probes is prolonged.

Description

technical field [0001] The invention relates to the technical field of sensor equipment, in particular to a chemical sensor. Background technique [0002] A chemical sensor is an instrument that is sensitive to various chemical substances and converts its concentration into an electrical signal for detection. The earliest electrochemical sensor can be traced back to the 1950s when it was used for oxygen monitoring. By the mid-1980s, small electrochemical sensors began to be used to detect a variety of different toxic gases and solutions within the PEL range, and showed good sensitivity and selectivity. In the process of material chemical analysis, it is often necessary to detect different solutions and gases, so electrochemical sensors are required. [0003] The existing patent (notification number: CN201810433858.5) is a high-precision electrochemical sensor that is convenient for pumping liquid, including an induction housing with a reaction chamber. The upper end of the ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent can absorb the liquid to be tested by setting the negative pressure chamber and pulling the pull rod, so that the sensor can detect the liquid to be tested. When detecting other liquids, the device needs to be replaced, which reduces the practicability of the device. In addition, because the device is integrated, it is not easy to disassemble the device, so it is impossible to clean the sensor. Due to some chemical The agent is oxidizing and corrosive. If the detection is not cleaned up in time, it is easy to cause damage to the sensor, thereby reducing the service life of the sensor

Images