Wireless remote sensing micro experimental animal microenvironment ammonia monitor
By separating the sensor and circuit board in the wireless remote sensing micro-environment ammonia monitor for experimental animals and using the through-hole in the housing for temperature compensation, the problem of temperature changes affecting monitoring accuracy was solved, and high-precision gas and temperature/humidity monitoring was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUN YAT SEN UNIV
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-08
AI Technical Summary
Existing monitoring instruments are not accurate in experimental environments with temperature changes, and interference from electronic components affects the sensor performance.
A wireless remote sensing micro-environment ammonia monitor for laboratory animals is used. The gas monitoring sensor and temperature and humidity sensor are separated from the circuit board by an internal partition in the shell. Air monitoring is carried out through the shell openings, and temperature compensation is performed to avoid the influence of circuit board temperature.
This improves monitoring accuracy, reduces interference from electronic components, and ensures the accuracy of monitoring data.
Smart Images

Figure CN224216618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory animal microenvironment monitoring technology, and in particular to a wireless remote sensing micro-ammonia monitor for laboratory animal microenvironment. Background Technology
[0002] In some animal laboratories, when conducting experiments on animals, it is necessary to monitor the gas data in their environment in real time to ensure the accuracy of the experiment and to identify influencing factors. Therefore, monitoring instruments are usually placed in the corresponding experimental environment. However, the existing monitoring instruments are mainly used for environmental gas detection and do not have temperature compensation. In the experimental environment, the ambient temperature may change when different experiments are conducted, which will affect the monitoring accuracy of the sensors and make the monitored data prone to errors, affecting human judgment. Utility Model Content
[0003] The purpose of this invention is to provide a wireless remote sensing micro-environment ammonia monitor for experimental animals, which can monitor multiple gases, perform temperature compensation, reduce interference from other electronic components on the sensor, and improve monitoring accuracy.
[0004] The technical solution adopted by the wireless remote sensing micro-environment ammonia monitor for experimental animals disclosed in this utility model is:
[0005] A wireless remote sensing micro-environment ammonia monitor for experimental animals includes a housing and a circuit board. The housing has an internal partition dividing it into a monitoring chamber and a sealed chamber. The circuit board is fixed within the sealed chamber. The housing has several through holes on its surface facing the monitoring chamber. A gas monitoring sensor and a temperature and humidity sensor are installed within the monitoring chamber. The connection contacts of the gas monitoring sensor and the temperature and humidity sensor extend through the partition. The circuit board is electrically connected to the connection contacts. The gas monitoring sensor is an ammonia sensor.
[0006] As a preferred embodiment, the monitoring cavity is located at the lower end of the housing, and the through holes are arranged on the front, back, sides and ground of the housing to form a multi-faceted flow guiding structure.
[0007] As a preferred embodiment, the housing includes a front cover and a rear cover, which are fixedly connected. The front cover has a display screen and control buttons on its surface, and both the display screen and control buttons are electrically connected to the circuit board.
[0008] As a preferred embodiment, the circuit board surface is provided with a wireless communication module, which is used to transmit data with external devices.
[0009] As a preferred embodiment, the rear shell surface is provided with a battery compartment and a battery cover, the battery compartment contains a removable battery, and the battery cover is slidably connected to the battery compartment.
[0010] As a preferred embodiment, the number of gas monitoring sensors is at least two, and the gas monitoring sensors also include any one or more of ozone sensors, oxygen sensors, hydrogen peroxide sensors and carbon dioxide sensors combined with an ammonia sensor.
[0011] The beneficial effects of the wireless remote sensing miniature experimental animal microenvironment ammonia monitor disclosed in this utility model are as follows: The gas monitoring sensor and temperature / humidity sensor are separated from the circuit board by a partition inside the housing. External air is allowed to enter the monitoring chamber through a through-hole in the housing. The gas monitoring sensor and temperature / humidity sensor monitor the environment. Simultaneously, the temperature / humidity sensor monitors both temperature and humidity, enabling temperature compensation and improving monitoring accuracy. It also monitors the ambient temperature and humidity. Furthermore, separating the circuit board prevents the temperature generated by the electronic components on the circuit board from affecting the sensor's monitoring, further improving monitoring accuracy. In laboratory use, the monitoring chamber portion of the housing can be placed inside the experimental animal microenvironment, while other parts can extend outwards for convenient human control. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals of this utility model.
[0013] Figure 2 This is a schematic diagram of the internal structure of the wireless remote sensing micro-environment ammonia monitor for experimental animals.
[0014] Figure 3 This is a schematic diagram of the back structure of the wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals of this utility model. Detailed Implementation
[0015] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:
[0016] Please refer to Figure 1 and Figure 2A wireless remote sensing micro-environment ammonia monitor for experimental animals includes a housing 10 and a circuit board 20. The housing 10 has a partition 11 inside, which divides the housing 10 into a monitoring chamber 101 and a sealed chamber 102. The circuit board 20 is fixed in the sealed chamber 102. The housing 10 has several through holes 12 on the surface of the monitoring chamber 101. The monitoring chamber 101 is equipped with a gas monitoring sensor 13 and a temperature and humidity sensor 14. The connection contacts of the gas monitoring sensor 13 and the temperature and humidity sensor 14 extend through the partition 11. The circuit board 20 is electrically connected to the connection contacts. The gas monitoring sensor 13 is an ammonia sensor.
[0017] The gas monitoring sensor 13 and the temperature and humidity sensor 14 are separated from the circuit board 20 by the partition 11 inside the housing 10. External air is allowed to enter the monitoring chamber 101 through the through hole 12 in the housing 10. The gas monitoring sensor 13 and the temperature and humidity sensor 14 monitor the environment. At the same time, the temperature and humidity sensor 14 can monitor temperature and humidity, thereby performing temperature compensation and improving monitoring accuracy. It can also monitor the temperature and humidity of the environment. Furthermore, the partition of the circuit board 20 prevents the temperature generated by the electronic components on the circuit board 20 from affecting the sensor monitoring, further improving the monitoring accuracy. In laboratory use, the monitoring chamber part of the housing can be placed into the experimental animal microenvironment, while other parts can extend out of the experimental animal microenvironment for easy human manipulation.
[0018] In the above scheme, the monitoring cavity 101 is located at the lower end of the housing 10, and the through hole 12 is set on the front, back, side and ground of the housing 10 to form a multi-faceted air guiding structure, thereby realizing the situation of single-sided air intake and multi-sided air exhaust or multi-sided air intake and single-sided air exhaust, avoiding the air intake or exhaust effect being affected by the obstruction on one side during use, and improving the monitoring accuracy and effect.
[0019] The housing 10 includes a front cover 15 and a rear cover 16, which are fixedly connected. The front cover 15 has a display screen 151 and control buttons 152 on its surface. Both the display screen 151 and control buttons 152 are electrically connected to the circuit board 20. The display screen 151 provides a clear view of the monitored values, while the control buttons 152 allow for control of the monitor and review of historical monitoring records. Furthermore, the circuit board 20 has a wireless communication module for data transmission with external devices. Through Bluetooth Mesh wireless communication via the Internet of Things (IoT), it can interconnect with other devices, supporting data storage and export, facilitating data archiving and post-export data analysis.
[0020] Please refer to Figure 3A battery compartment 161 and a battery cover 162 are provided on the surface of the rear shell 16. A removable battery 163 is provided inside the battery compartment 161. The battery cover 162 is slidably connected to the battery compartment 161. The removable battery 163 can meet the needs of wireless use.
[0021] The number of gas monitoring sensors 13 is at least two, and the gas monitoring sensors 13 also include any one or more of ozone sensors, oxygen sensors, hydrogen peroxide sensors and carbon dioxide sensors combined with ammonia sensors.
[0022] Ammonia sensors are typically based on electrochemical or metal-oxide-semiconductor (MOS) principles. In electrochemical sensors, ammonia reacts chemically with the electrode material on the sensor, generating changes in current or voltage, thereby enabling quantitative measurement of ammonia concentration. MOS sensors, on the other hand, monitor ammonia concentration by measuring the change in resistance caused by the adsorption of ammonia molecules.
[0023] Oxygen sensors can employ either electrochemical or optical principles. Electrochemical oxygen sensors determine oxygen concentration by measuring the current generated during the redox reaction of oxygen at electrodes. Optical sensors, on the other hand, calculate oxygen concentration by measuring changes in light intensity, based on the absorption characteristics of oxygen at specific wavelengths of light.
[0024] Carbon dioxide sensors typically employ either infrared absorption or electrochemical principles. Infrared sensors determine concentration by measuring the degree to which carbon dioxide absorbs light of a specific infrared wavelength. Electrochemical sensors, on the other hand, quantitatively analyze carbon dioxide concentration by measuring the current generated by the chemical reaction of carbon dioxide in an electrolyte.
[0025] This invention provides a wireless remote sensing miniature ammonia monitor for laboratory animals. A partition inside the housing separates the gas monitoring sensor and temperature / humidity sensor from the circuit board. Through-holes in the housing corresponding to the monitoring chamber allow external air to enter. The gas and temperature / humidity sensors monitor the environment, while the temperature / humidity sensor provides temperature compensation to improve monitoring accuracy. It also monitors the ambient temperature and humidity. The separation of the circuit board prevents the temperature generated by the electronic components from affecting the sensor's monitoring, further improving accuracy. In laboratory use, the monitoring chamber portion of the housing can be placed inside the laboratory animal microenvironment, while other parts extend outwards for easy manipulation.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals, characterized in that, The device includes a housing and a circuit board. The housing has an internal partition that divides the housing into a monitoring chamber and a sealed chamber. The circuit board is fixed inside the sealed chamber. The housing has several through holes on its surface facing the monitoring chamber. A gas monitoring sensor and a temperature and humidity sensor are installed inside the monitoring chamber. The connection contacts of the gas monitoring sensor and the temperature and humidity sensor extend through the partition. The circuit board is electrically connected to the connection contacts. The gas monitoring sensor is an ammonia sensor.
2. The wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals as described in claim 1, characterized in that, The monitoring cavity is located at the lower end of the housing, and the through holes are provided on the front, back, sides and ground of the housing to form a multi-faceted flow guiding structure.
3. The wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals as described in claim 1, characterized in that, The housing includes a front cover and a rear cover, which are fixedly connected. The front cover has a display screen and control buttons on its surface, and both the display screen and control buttons are electrically connected to the circuit board.
4. The wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals as described in claim 3, characterized in that, The circuit board surface is provided with a wireless communication module, which is used to transmit data with external devices.
5. The wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals as described in claim 3, characterized in that, The rear shell surface is provided with a battery compartment and a battery cover. The battery compartment contains a removable battery, and the battery cover is slidably connected to the battery compartment.
6. The wireless remote sensing micro-environment ammonia monitoring instrument for experimental animals as described in claim 1, characterized in that, The number of gas monitoring sensors is at least two, and the gas monitoring sensors also include any one or more of ozone sensors, oxygen sensors, hydrogen peroxide sensors and carbon dioxide sensors combined with an ammonia sensor.