Sensor component stabilization

A holder of a sensor component having a barrel defining an axis, the barrel including a bulbous portion, the holder comprising:

• a support member defining a concave recess and substantially fitting the bulbous portion so that the barrel can be axially moved while the bulbous portion is retained at least partially in the concave recess;
• a plurality of retaining members adapted to cooperatively adjustably retain the barrel in a position relative to the support member, at least one of the plurality of retaining members comprising a resilient retaining member, and at least one of the remainder of the retaining members comprising a rigid, adjustable retaining member, wherein the resilient retaining member is adapted to deform to accommodate repositioning of the portion of the sensor component when the adjustable retaining member is adjusted;
• and
• a first additional, rigid retaining member adapted to cooperate with at least some of the plurality of retaining member to fixedly retain the sensor component in a position relative to the support member.

A holder of a sensor component, the holder comprising:

• one or more support members;
• a plurality of retaining members adapted to cooperatively adjustably retain the sensor component in a position relative to the one or more support members;
• an additional, rigid retaining member adapted to cooperate with at least some of the plurality of retaining member to fixedly retain the sensor component in a position relative to the one or more support members,
• one of the one or more support members defining a recessed portion adapted to accommodate a portion of the sensor component, the recess having a shape for permitting rotational repositioning of the sensor component relative to the one or more support members.