Method and device for detecting temperature of accelerometer and determining temperature detection path
A temperature detection device, accelerometer technology, applied in the direction of speed/acceleration/shock measurement, measurement device, measurement acceleration, etc., can solve the problems of affecting navigation accuracy, accelerometer temperature can not be reflected in time, lack of accelerometer, etc., to achieve fast The effect of measuring temperature
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Embodiment 1
[0044] The invention provides a method for determining the temperature detection path of an accelerometer, comprising the following steps:
[0045] The first step, the accelerometer temperature measurement state determination and temperature measurement:
[0046] First determine the factors that affect the temperature measurement response time of the accelerometer, including at least:
[0047] a. The temperature sensor 1 is fixed on the position of the accelerometer, such as figure 2 There are two cases as shown, and it is fixed at the center of the flange 4 of the accelerometer or close to the surface of the accelerometer housing. The position close to the surface of the accelerometer housing refers to a position close to the surface of the housing within 1 mm to 5 mm from the surface of the housing, and the center position refers to the center of the temperature sensor and the center of the flange 4 coincide.
[0048] b. If image 3As shown, the thickness of the adhesiv...
Embodiment 2
[0066] The present invention provides a device for determining the temperature detection path of the accelerometer, including an accelerometer temperature measurement state determination and temperature measurement unit, a data processing unit and an evaluation decision-making unit:
[0067] The temperature measurement state determination and temperature measurement unit includes a state setting module and a temperature measurement module, and the state setting module is used to set 8 accelerometer temperature measurement states according to factors affecting the accelerometer temperature measurement response time, The temperature measurement module is used to sequentially collect the accelerometer temperature in the 8 states, such as Figure 4 The schematic diagram of the temperature measurement module is shown, the temperature measurement module includes a digital acquisition unit, which is used to collect the temperature of the accelerometer transmitted by the temperature se...
Embodiment 3
[0071] The invention provides an accelerometer temperature detection device, such as figure 1 As shown, an accelerometer is included, which may be a quartz flex accelerometer.
[0072] A temperature sensor 1, using an adhesive 2 to fix the temperature sensor on the accelerometer flange 4, the thickness of the adhesive 2 should be relatively thin, and the thickness should be selected within the range of 15 μm to 60 μm, and the position of the temperature sensor 1 should be within the range of 1 mm to 5 mm from the shell surface of the accelerometer surface on the flange 4 to obtain the temperature of the accelerometer;
[0073] A heating element 6, the leads of which are drawn from the side of the accelerometer to heat the accelerometer, the heating element 6 can choose a heating sheet, and this embodiment uses a heating sheet with a resistance of 150 ohms.
[0074] A temperature measurement module is connected with the temperature sensor 1 and collects the temperature of the ...
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Abstract
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