Physiological tension measurement device for interior of stomach of livestock
A measurement device and physiological technology, which is applied in the field of animal physiology, can solve the problems of disturbed livestock, large changes in gastrointestinal electrical frequency and amplitude, and inconvenient electrode fixing, so as to avoid large signal interference factors, clear data and charts, and accurate measurement results. reliable effect
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Embodiment 1
[0027] See figure 1 This specific implementation is implemented by adopting the following technical solution, which includes a pressure sensor 1, which is connected to a signal amplifier 4 through a first data line 6, and the signal amplifier 4 is connected to a data acquisition through a second data line 7 The card 3 is docked, and the data acquisition card 3 is provided with a USB interface, and the USB interface is docked with the computer 8 through the third data line 5;
[0028] The end of the pressure sensor 1 is docked with the probe 2, the end of the probe 2 is installed with a water seepage stone, and the pressure sensor 1 is docked with the signal amplifier 4;
[0029] The pressure sensor 1 adopts a pressure sensor with a range of 0Kpa-60Kpa, an accuracy of 0.1%-0.5%, and a probe diameter of 2mm-4mm.
[0030] The accuracy of the signal amplifier 4 is 0.1% to 0.5%, and the signal amplifier uses a power supply of 24VCD and an output voltage of 0-5VDC.
Embodiment 2
[0032] An operating method of a device for measuring physiological tension in the stomach of livestock specifically includes the following steps:
[0033] 1). First coat the outside of the pressure sensor 1 and the probe 2 and the first data line 6 with petroleum jelly;
[0034] 2). Fix the test animal, and slowly send the pressure sensor 1 and the probe 2 from the animal's nasal cavity through the pharynx and esophagus into the stomach for measurement;
[0035] 3) The data measured by the pressure sensor 1 is recorded by the computer 8;
[0036] 4). The computer 8 has a driver corresponding to the pressure sensor 1.
[0037] The signal amplifier 4 described in this embodiment is purchased from Xi'an Hangdong Instrumentation Co., Ltd., model CYY-FDQ;
[0038] Signal amplifier 4 input signal output 0~5VDC, power supply 24VDC. According to the requirements, the data acquisition card 3 was purchased from Xi’an Hangdong Instrument Co., Ltd., model CYY;
[0039] Among them, the data acquisiti...
Embodiment 3
[0044] The experiment was aimed at Tibetan sheep. The pressure sensor 1 was put into the rumen of the sheep with a gastric tube, connected to the computer, 5 minutes later, after the sheep was quiet, the rumen tension was measured.
[0045] Table 1 Recorded values of data recording program (more data, take some sample values)
[0046]
[0047]
[0048]
[0049] Further, for the sampling channel voltage value, the formula Y(Kpa)=X(V)×60(Kpa) / 5(V) is used to convert the voltage value into a pressure value.
[0050] Table 2 Conversion value of rumen tension (more data, take some example values)
[0051]
[0052]
[0053] Further, the time in Table 2 is taken as the abscissa, and the rumen tension value is the ordinate, and the results are as follows: figure 2 Shown
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